There is no cure for DVD/CAS, but with appropriate, intensive intervention, people with the disorder can improve significantly.

DVD/CAS requires various forms of therapy which varies with the individual needs of the patient. Typically, treatment involves one-on-one therapy with a speech language pathologist (SLP). In children with DVD/CAS, consistency is a key element in treatment. Consistency in the form of communication, as well as the development and use of oral communication are extremely important in aiding a child's speech learning process.

Many therapy approaches are not supported by thorough evidence; however, the aspects of treatment that do seem to be agreed upon are the following:

- Treatment needs to be intense and highly individualized, with about 3-5 therapy sessions each week

- A maximum of 30 minutes per session is best for young children

- Principles of motor learning theory and intense speech-motor practice seem to be the most effective

- Non-speech oral motor therapy is not necessary or sufficient

- A multi-sensory approach to therapy may be beneficial: using sign language, pictures, tactile cues, visual prompts, and Augmentative and Alternative Communication (AAC) can be helpful.

Although these aspects of treatment are supported by much clinical documentation, they lack evidence from systematic research studies. In ASHA's position statement on DVD/CAS, ASHA states there is a critical need for collaborative, interdisciplinary, and programmatic research on the neural substrates, behavioral correlates, and treatment options for DVD/CAS.

The U.S. Food and Drug Administration (FDA) has not approved any drug for the direct treatment of stuttering. However, the effectiveness of pharmacological agents, such as benzodiazepines, anticonvulsants, antidepressants, antipsychotic and antihypertensive medications, and dopamine antagonists in the treatment of stuttering has been evaluated in studies involving both adults and children.

A comprehensive review of pharmacological treatments of stuttering in 2006 concluded that few of the drug trials were methodologically sound. Of those that were, only one, not unflawed study, showed a reduction in the frequency of stuttering to less than 5% of words spoken. In addition, potentially serious side effects of pharmacological treatments were noted, such as weight gain, sexual dysfunctions and the potential for blood pressure increases. There is one new drug studied especially for stuttering named pagoclone, which was found to be well-tolerated "with only minor side-effects of headache and fatigue reported in a minority of those treated".

Medical studies conclude that certain adjunctive drugs effectively palliate the negative symptoms of schizophrenia, mainly alogia. In one study, Maprotiline produced the greatest reduction in alogia symptoms with a 50% decrease in severity. Of the negative symptoms of schizophrenia, alogia had the second best responsiveness to the drugs, surpassed only by attention deficiency. D-amphetamine is another drug that has been tested on people with schizophrenia and found success in alleviating negative symptoms. This treatment, however, has not been developed greatly as it seems to have adverse effects on other aspects of schizophrenia such as increasing the severity of positive symptoms.

Altered auditory feedback, so that people who stutter hear their voice differently, has been used for over 50 years in the treatment of stuttering. Altered auditory feedback effect can be produced by speaking in chorus with another person, by blocking out the person who stutters' voice while talking (masking), by delaying slightly the voice of the person who stutters (delayed auditory feedback) or by altering the frequency of the feedback (frequency altered feedback). Studies of these techniques have had mixed results, with some people who stutter showing substantial reductions in stuttering, while others improved only slightly or not at all. In a 2006 review of the efficacy of stuttering treatments, none of the studies on altered auditory feedback met the criteria for experimental quality, such as the presence of control groups.

Treatment often involves the use of behavioral modification and anticonvulsants, antidepressants and anxiolytics.

In cases of acute AOS (stroke), spontaneous recovery may occur, in which previous speech abilities reappear on their own. All other cases of acquired AOS require a form of therapy; however the therapy varies with the individual needs of the patient. Typically, treatment involves one-on-one therapy with a speech language pathologist (SLP). For severe forms of AOS, therapy may involve multiple sessions per week, which is reduced with speech improvement. Another main theme in AOS treatment is the use of repetition in order to achieve a large amount of target utterances, or desired speech usages.

There are various treatment techniques for AOS. One technique, called the Linguistic Approach, utilizes the rules for sounds and sequences. This approach focuses on the placement of the mouth in forming speech sounds. Another type of treatment is the Motor-Programming Approach, in which the motor movements necessary for speech are practiced. This technique utilizes a great amount of repetition in order to practice the sequences and transitions that are necessary in between production of sounds.

Research about the treatment of apraxia has revealed four main categories: articulatory-kinematic, rate/rhythm control, intersystemic facilitation/reorganization treatments, and alternative/augmentative communication.

- Articulatory-kinematic treatments almost always require verbal production in order to bring about improvement of speech. One common technique for this is modeling or repetition in order to establish the desired speech behavior. Articulatory-kinematic treatments are based on the importance of patients to improve spatial and temporal aspects of speech production.

- Rate and rhythm control treatments exist to improve errors in patients’ timing of speech, a common characteristic of Apraxia. These techniques often include an external source of control like metronomic pacing, for example, in repeated speech productions.

- Intersystemic reorganization/facilitation techniques often involve physical body or limb gestural approaches to improve speech. Gestures are usually combined with verbalization. It is thought that limb gestures may improve the organization of speech production.

- Finally, alternative and augmentative communication approaches to treatment of apraxia are highly individualized for each patient. However, they often involve a "comprehensive communication system" that may include "speech, a communication book aid, a spelling system, a drawing system, a gestural system, technologies, and informed speech partners".

One specific treatment method is referred to as PROMPT. This acronym stands for Prompts for Restructuring Oral Muscular Phonetic Targets, and takes a hands on multidimensional approach at treating speech production disorders. PROMPT therapists integrate physical-sensory, cognitive-linguistic, and social-emotional aspects of motor performance. The main focus is developing language interaction through this tactile-kinetic approach by using touch cues to facilitate the articulatory movements associated with individual phonemes, and eventually words.

One study describes the use of electropalatography (EPG) to treat a patient with severe acquired apraxia of speech. EPG is a computer-based tool for assessment and treatment of speech motor issues. The program allows patients to see the placement of articulators during speech production thus aiding them in attempting to correct errors. Originally after two years of speech therapy, the patient exhibited speech motor and production problems including problems with phonation, articulation, and resonance. This study showed that EPG therapy gave the patient valuable visual feedback to clarify speech movements that had been difficult for the patient to complete when given only auditory feedback.

While many studies are still exploring the various treatment methods, a few suggestions from ASHA for treating apraxia patients include the integration of objective treatment evidence, theoretical rationale, clinical knowledge and experience, and the needs and goals of the patient

One technique that is frequently used to treat DVD/CAS is integral stimulation. Integral stimulation is based on cognitive motor learning, focusing on the cognitive motor planning needed for the complex motor task of speech. It is often referred to as the "watch me, listen, do as I do" approach and is founded on a multi-step hierarchy of strategies for treatment. This hierarchy of strategies allows the clinician to alter treatment depending upon the needs of the child. It uses various modalities of presentation, emphasizing the auditory and visual modes. Experts suggest that extensive practice and experience with the new material is key, so hundreds of target stimuli should be elicited in a single session. Furthermore, distributed (shorter, but more frequent) and random treatment, which mix target and non-target utterances, produces greater overall learning.

The 6 steps of the hierarchy upon which integral stimulation therapy for children is loosely organized are:"

- The child watches and listens and simultaneously produces the stimulus with the clinician.

- The clinician models, then the child repeats the stimulus while the clinician simultaneously mouths it.

- The clinician models and provides cues and the child repeats.

- The clinician models and the child repeats with no cues provided.

- The clinician elicits the stimulus without modeling, such as by asking a question, with the child responding spontaneously.

- The child produces stimuli in less-directed situations with clinician encouragement, such as in role-play or games".

In addition to active speech therapy, pharmaceuticals have also been considered as a useful treatment for expressive aphasia. This area of study is relatively new and much research continues to be conducted.

The following drugs have been suggested for use in treating aphasia and their efficacy has been studied in control studies.

- Bromocriptine – acts on Catecholamine Systems

- Piracetam – mechanism not fully understood, but most likely interacts with cholinergic and glutamatergic receptors, among others

- Cholinergic drugs (Donepezil, Aniracetam, Bifemelane) – acts on acetylcholine systems

- Dopaminergic psychostimulants: (Dexamphetamine, Methylphenidate)

The most effect has been shown by piracetam and amphetamine, which may increase cerebral plasticity and result in an increased capability to improve language function. It has been seen that piracetam is most effective when treatment is begun immediately following stroke. When used in chronic cases it has been much less efficient.

Bromocriptine has been shown by some studies to increase verbal fluency and word retrieval with therapy than with just therapy alone. Furthermore, its use seems to be restricted to non-fluent aphasia.

Donepezil has shown a potential for helping chronic aphasia.

No study has established irrefutable evidence that any drug is an effective treatment for aphasia therapy. Furthermore, no study has shown any drug to be specific for language recovery. Comparison between the recovery of language function and other motor function using any drug has shown that improvement is due to a global increase plasticity of neural networks.

The most effective course of treatment for dysprosody has been speech therapy. The first step in therapy is practice drills which consist of repeating phrases using different prosodic contours, such as pitch, timing, and intonation. Typically a clinician will say either syllables, words, phrases, or nonsensical sentences with certain prosodic contours, and the patient repeats them with the same prosodic contours. Treatment following the lines of the principles of motor learning (PML) was found to improve the production of lexical stress contrasts. Once a patient is able to effectively complete this drill, they can start with more advanced forms of speech therapy. Upon completion of therapy, most people can identify prosodic cues in natural situations, such as normal conversation. Speech therapy has proven most effective for linguistic dysprosody because therapy for emotional dysprosody requires much more effort and is not always successful. One way that people learn to cope with emotional dysprosody is to explicitly state their emotions, rather than relying on prosodic cues.

Over time, there have also been cases of people suffering from dysprosody gaining their native accent back with no course of treatment. Since the part of the brain responsible for dysprosody has not definitely been discovered, nor has the mechanism for the brain processes which cause dysprosody been found, there has not been much treatment for the disease by means of medication.

Articulation problems resulting from dysarthria are treated by speech language pathologists, using a variety of techniques. Techniques used depend on the effect the dysarthria has on control of the articulators. Traditional treatments target the correction of deficits in rate (of articulation), prosody (appropriate emphasis and inflection, affected e.g. by apraxia of speech, right hemisphere brain damage, etc.), intensity (loudness of the voice, affected e.g. in hypokinetic dysarthrias such as in Parkinson's), resonance (ability to alter the vocal tract and resonating spaces for correct speech sounds) and phonation (control of the vocal folds for appropriate voice quality and valving of the airway). These treatments have usually involved exercises to increase strength and control over articulator muscles (which may be flaccid and weak, or overly tight and difficult to move), and using alternate speaking techniques to increase speaker intelligibility (how well someone's speech is understood by peers). With the speech language pathologist, there are several skills that are important to learn; safe chewing and swallowing techniques, avoiding conversations when feeling tired, repeat words and syllables over and over in order to learn the proper mouth movements, and techniques to deal with the frustration while speaking. Depending on the severity of the dysarthria, another possibility includes learning how to use a computer or flip cards in order to communicate more effectively.

More recent techniques based on the principles of motor learning (PML), such as LSVT (Lee Silverman voice treatment) speech therapy and specifically LSVT may improve voice and speech function in PD. For Parkinson's, aim to retrain speech skills through building new generalised motor programs, and attach great importance to regular practice, through peer/partner support and self-management. Regularity of practice, and when to practice, are the main issues in PML treatments, as they may determine the likelihood of generalization of new motor skills, and therefore how effective a treatment is.

Augmentative and alternative communication (AAC) devices that make coping with a dysarthria easier include speech synthesis and text-based telephones. These allow people who are unintelligible, or may be in the later stages of a progressive illness, to continue to be able to communicate without the need for fully intelligible speech.

Transient paraphasias (as well as other language defects such as speech arrest) can be generated by artificially activating the brain's language network with Transcranial magnetic stimulation (TMS). With navigated TMS (nTMS), nodes of the language network can be located presurgically so that critical areas can be saved when performing tumor or epilepsy surgery. Marketed by Nexstim, this method has received Food and Drug Administration (FDA) clearance in the United States.

Many researchers are investigating the characteristics of apraxia of speech and the most effective treatment methods. Below are a couple of the recent findings:

Sound Production Treatment:

Articulatory-kinematic treatments have the strongest evidence of their use in treating Acquired Apraxia of Speech. These treatments use the facilitation of movement, positioning, timing, and articulators to improve speech production. Sound Production Treatment (SPT) is an articulatory-kinematic treatment that has received more research than many other methods. It combines modeling, repetition, minimal pair contrast, integral stimulation, articulatory placement cueing, and verbal feedback. It was developed to improve the articulation of targeted sounds in the mid-1990s. SPT shows consistent improvement of trained sounds in trained and untrained words. The best results occur with eight to ten exemplars of the targeted sound to promote generalization to untrained exemplars of trained sounds. In addition, maintenance effects are the strongest with 1–2 months post-treatment with sounds that reached high accuracy during treatment. Therefore, the termination of treatment should not be determined by performance criteria, and not by the number of sessions the client completes, in order to have the greatest long-term effects. While there are many parts of SPT that should receive further investigation, it can be expected that it will improve the production of targeted sounds for speakers with apraxia of Speech.

Repeated Practice & Rate/Rhythm Control Treatments:

Julie Wambaugh’s research focuses on clinically applicable treatments for acquired apraxia of speech. She recently published an article examining the effects of repeated practice and rate/rhythm control on sound production accuracy. Wambaugh and colleagues studied the effects of such treatment for 10 individuals with acquired apraxia of speech. The results indicate that repeated practice treatment results in significant improvements in articulation for most clients. In addition, rate/rhythm control helped some clients, but not others. Thus, incorporating repeated practice treatment into therapy would likely help individuals with AOS.

There is no curative treatment for this condition. Supportive management is helpful.

Speech therapy is usually the most common treatment for asemia. Speech therapy allows the patient to be able to improve their speaking, comprehension, and writing skills. These patients have to learn all of these skills again since they are unable to understand or express anything. It usually depends on how long it takes for the speech therapy to work. If the condition is less severe, it will take less time, such as perhaps a couple of months to years. If the condition is more severe, it may take many years. The way speech therapy works is through speech practice as well as using special computer programs which let the patient practice their communication skills. By using simple and short sentences or writing down these phrases can aid the patients while going through therapy. Giving them enough time to communicate with their friends, family, or therapist will help them increase their skills and be able to manage them.

Complete success is usually achieved with treatment. However, sometimes only partial success is achieved and the patient cannot fully comprehend everything. With the partial restoration of some skills, the speech therapist may only focus on the skills which can be restored. In other cases, the therapist may work on the skills which may not retrieved and teach the patient how to handle those.

Many language impairments, including paraphasic errors, are reduced in number through spontaneous recovery of neurological function; this occurs most often with stroke patients within the first three months of recovery. Lesions associated with ischemic strokes have a shorter spontaneous recovery time, within the first two weeks, and lesions associated with hemorrhagic strokes, on the other hand have a longer period for spontaneous recovery, four to eight weeks. Whether spontaneous recovery occurs or not, treatment must begin immediately after the stroke. A traditional approach requires treatment beginning at the level of breakdown - in the case of paraphasia, at the level of the phoneme. There are commercially available workbooks that provide various activities such as letter, word-picture, or word-word matching, and sentence completion, among other things. The difficulty of these activities varies with the level of treatment. However, these treatments have not been proven to be clinically productive. Functional magnetic resonance imaging is the most widely used technique to study treatment-induced recovery, looking at activation of particular areas of the brain. There are many different ways to process fMRI scans, beginning with the pre-scanning process. Data must be normalized. There is also no consensus on whether or not single subject scans are more helpful than group scans to determine a general pattern of treatment. However, fMRI scans have a few disadvantages.

A 1988 study by Mary Boyle proposed a method focused on oral reading to treat phonemic paraphasias was partially successful, resulting in fewer phonemic paraphasias but a slower rate of speech. Treatments lasted for 50 minutes and occurred once a week. During these treatment sessions, the patient was instructed to look at twenty different phrases -each of these phrases consisted of one to three syllables - then read the phrase. If the patient failed to read the phrase, the process was repeated. If the patient failed to read the phrase again, the process was abandoned. To progress from a set of one syllable phrases to two syllable phrases and two syllable phrases to three syllable phrases, an 80% success rate was necessary. This treatment was partially successful. Although fewer phonemic paraphasias were produced due to this treatment, speaking efficiency was not improved by this study. This is partially because the focus of the treatment was on sound production rather than semantic content. Improvements lasted for six weeks before the patient regressed.

This condition is most often treated using voice therapy (vocal exercises) by speech-language pathologists (SLPs) or speech therapists who have experience in treating voice disorders. The duration of treatment is commonly one to two weeks.

Techniques used include:

- Cough: The patient is asked to apply pressure on the Adam's apple and cough. This results in the shortening of the vocal folds which is the physiological mechanism that reduces pitch. The patient can thus practice voicing at a lower pitch.

- Speech range masking: This procedure is based on the theory that when speaking in noisy backgrounds, people speak louder and more clearly in order to be heard. The patient practices speaking while a masking noise is playing. Then, the patient listens to a recording of his/her voice during the masking session and tries to match it without the masking. By doing this, the patient practices their 'loud and clear' voice.

- Glottal attack before a vowel: A glottal attack is when the vocal folds are fully closed and then pushed open by the air pressure from breathing out or making a sound. In this technique, the patient breathes in and then makes a vowel as he/she breathes out.

- Laryngeal musculature relaxation techniques: Laryngeal muscles surround the vocal folds and by relaxing them, there is reduced pressure on the vocal folds. This can be done by yawning and subsequently sighing, exaggerated chewing while speaking, and speaking or singing the 'm' sound.

- Lowering of larynx to appropriate position: The larynx is lowered by the patient by putting pressure on the Adam's apple. By lowering the larynx, the vocal folds relax, and thus pitch is lowered. The patient does this while speaking to practice speaking with a lower pitch.

- Humming while sliding down the scale: The patient starts humming at the highest pitch that they can reach and then keeps lowering the pitch while humming. This allows the patient to practice using a lower pitch and also to relax the laryngeal muscles.

- Half swallow Boom technique: The patient says 'boom" just after swallowing. This is repeated with the patient turning his/her head to either side and also while lowering the chin. After practice, the patient adds more words. This technique helps to close the vocal folds completely.

Indirect Voice Therapy

Indirect treatment options for puberphonia focus on creating an environment where direct treatment options will be more effective. Counselling, performed by the S-LP, a psychologist, or counsellor, can help patients identify the psychological factors that contribute to their disorder and give them tools to address those factors directly. Patients may also be educated about good vocal hygiene and how their behaviour could have long term effects on their voice.

Audiovisual feedback:

In puberphonia, the use of audiovisual feedback allows the patient to observe graphic and numerical representations of their voice and pitch. This allows the patient to determine an ideal pitch range based on normative data on age and gender, and incrementally work through speech tasks while working in that desired pitch range. As the patient improves, speech tasks progress to become more natural, involving tasks such as reciting automatic information, to reading, to spontaneous speech and conversation. Incorporating audiovisual feedback in speech and voice therapies has been successful in intervention by improving motivation and guidance.

Surgery:

In some cases when traditional voice therapy is ineffective, surgical interventions are considered. This can occur in situations where intervention is delayed or the patient is in denial, causing the condition to become resistant to voice therapy.

There are different types of surgical interventions which have been successful in lowering the vocal pitch in men with puberphonia who had previously received ineffective voice and psychotherapy. The first surgical intervention developed, called "Relaxation Thyroplasty" or "Retrusion Thyroplasty", involves a bilateral excision of 2 to 3 mm vertical strips of thyroid cartilage which lowers the vocal pitch through anteroposterior relaxation and shortening of the vocal folds. It can be performed under local or general anesthesia.

"Relaxation Thyroplasty by a medial approach" is a modified approach of traditional "Relaxation Thyroplasty". This version involves lowering the vocal pitch by creating an incision bilaterally in the thyroid lamina and then depressing the anterior segment of the thyroid cartilage.

A more recent, less invasive intervention is the "Window Relaxation Thyroplasty". This approach involves creating a window at the anterior commissure which is then displaced posteriorly.

After the initial diagnosis of speech delay, a hearing test will be administered to ensure that hearing loss or deafness is not an underlying cause of the delay. If a child has successfully completed the hearing test, the therapy or therapies used will be determined. There are many therapies available for children that have been diagnosed with a speech delay, and for every child, the treatment and therapies needed vary with the degree, severity, and cause of the delay. While speech therapy is the most common form of intervention, many children may benefit from additional help from occupational and physical therapies as well. Physical and occupational therapies can be used for a child that is suffering from speech delay due to physical malformations and children that have also been diagnosed with a developmental delay such as autism or a language processing delay. Children that have been identified with hearing loss can be taught simple sign language to build and improve their vocabulary in addition to attending speech therapy.

The parents of a delayed child are the first and most important tool in helping overcome the speech delay. The parent or caregiver of the child can provide the following activities at home, in addition to the techniques suggested by a speech therapist, to positively influence the growth of speech and vocabulary:

- Reading to the child regularly

- Use of questions and simple, clear language

- Positive reinforcement in addition to patience

For children that are suffering from physical disorder that is causing difficulty forming and pronouncing words, parents and caregivers suggest using and introducing different food textures to exercise and build jaw muscles while promoting new movements of the jaw while chewing. Another less studied technique used to combat and treat speech delay is a form of therapy using music to promote and facilitate speech and language development. It is important to understand that music therapy is in its infancy and has yet to be thoroughly studied and practiced on children suffering from speech delays and impediments.

Treatment for all types of aphasia, including transcortical motor aphasia, is usually provided by a speech-language pathologist. The SLP chooses specific therapy tasks and goals based on the speech and language abilities and needs of the individual. In general for individuals with TMoA, treatment should capitalize on their strong auditory comprehension and repetition skills and address the individual's reduced speech output and difficulty initiating and maintaining a conversation. New research in aphasia treatment is showing the benefit of the Life Participation Approach to Aphasia (LPAA) in which goals are written based on the skills needed by the individual patient to participate in specific real-life situations (i.e. communicating effectively with nurses or gaining employment). Based on the specific needs of the patient, SLPs can provide a variety of treatment activities.

To improve word retrieval and initiation difficulties, clinicians may use confrontation naming in which the patient is asked to name various objects and pictures. Depending on the severity, they may also use sentence completion tasks in which the clinician says sentences with the final word(s) missing and expects the patient to fill in the blank. Limited research suggests that nonsymbolic limb movement on the left side (i.e. tapping the left hand on the table) during sentence production can increase verbal initiations. The use of the left arm in left space stimulates initiation mechanisms in the right hemisphere of the brain which can also be used for language allowing individuals to produce more grammatical sentences with higher fluency and more verbal initiation.

To increase speech output, the clinician may provide a set of pictures and prompt the patient to describe or elaborate on the events pictured. The clinician can also provide spoken or written words and prompt the patient to use the words in a sentence. Additionally, the clinician can ask questions based on the patient’s experiences, opinions, or general knowledge and prompt the patient to answer with phrases or sentences. To work on more connected speech, the clinician may ask the patient to describe procedures such as making a sandwich or doing laundry. A study found that syntax training in which sentence constructions are elicited on a hierarchy of difficulty produced gains in grammatically complete utterances and utterances that successfully communicated novel and accurate information.

To improve conversational skills, SLPs may engage the patient in structured conversations in which supports are provided to help the patient take appropriate conversational turns, maintain the topic of conversation, and formulate appropriate sentences. Clinicians often need to provide pragmatic guidelines so that the patient’s responses go beyond the clinician’s request and so the clinician does not do the majority of the talking. Research shows that conversation therapy can improve percent of complex utterances, the efficiency of the utterances for expressing ideas, and total time spent talking over more traditional stimulation therapy.

In order to improve the patient’s abilities to functionally communicate in their natural settings, the SLP will provide strategies and techniques to enhance their success in communicative settings (i.e. supplementing speech with nonverbal communication). Research supports the use of reduced syntax therapy to help patients overcome the non-fluent speech and agrammatism that often occurs with TMoA. Because agrammatism inhibits the patient's ability to form grammatically correct sentences, this type of treatment involves reducing these agrammatic deficits and teaching the patient to simplify linguistic structures while still conveying the message in order for language used to be more productive in conversation.

Additionally, they may train the patient’s communication partners to support the conversational abilities of the patient by facilitating the use of preserved cognitive and social functions. Research supports the use of various partner training programs such as Supported Conversation for Adults with Aphasia from the Aphasia Institute. In this program, the focus is put on acknowledging the patient’s competence and helping them to reveal that competence. Strategies include saying “I know you know” when appropriate, using gestures to supplement messages, limiting background noise, and given sufficient time for response.

From a neuroscience perspective, research has found that a dopamine agonist, bromocriptine, taken by mouth, has provided positive outcomes during intervention for non-fluent types of aphasia, such as TMoA or adynamic aphasia. Studies have found that bromocriptine increased neural networks which assist with the initiation of speech in individuals who possess non-fluent characteristics of speech.

In order to capitalize on neuroplasticity for treatment of all types of aphasia, timing, intensity, duration, and repetition of treatment should be taken into consideration. Research has found that aphasia treatment initiated during the earlier acute post-injury phase is more effective compared to treatment initiated in the chronic phase. With regard to intensity and duration of treatment, studies reported maximum recovery occurred with intense weekly therapy (approximately 8 hours per week) was delivered over a 2–3 month period. Other research shows that distributed therapy may be more beneficial than high intensity therapy. More research is needed to determine which is best, but it may be found that the ideal duration and intensity of therapy is variable depending on the patient and their needs.

The intensity of aphasia therapy is determined by the length of each session, total hours of therapy per week, and total weeks of therapy provided. There is no consensus about what “intense” aphasia therapy entails, or how intense therapy should be to yield the best outcomes. A 2016 Cochrane review of speech and language therapy for people with aphasia found that treatments that are higher intensity, higher dose or over a long duration of time led to significantly better functional communication but people were more likely to drop out of high intensity treatment (up to 15 hours per week).

Intensity of therapy is also dependent on the recency of stroke. People with aphasia react differently to intense treatment in the acute phase (0–3 months post stroke), sub-acute phase (3–6 months post stroke), or chronic phase (6+ months post stroke). Intensive therapy has been found to be effective for people with nonfluent and fluent chronic aphasia, but less effective for people with acute aphasia.> People with sub-acute aphasia also respond well to intensive therapy of 100 hours over 62 weeks. This suggests people in the sub-acute phase can improve greatly in language and functional communication measures with intensive therapy compared to regular therapy.

In transcranial magnetic stimulation (TMS), magnetic fields are used to create electrical currents in specified cortical regions. The procedure is a painless and noninvasive method of stimulating the cortex. TMS works by suppressing the inhibition process in certain areas of the brain. By suppressing the inhibition of neurons by external factors, the targeted area of the brain may be reactivated and thereby recruited to compensate for lost function. Research has shown that patients can demonstrate increased object naming ability with regular transcranial magnetic stimulation than patients not receiving TMS. Furthermore, research suggests this improvement is sustained upon the completion of TMS therapy. However, some patients fail to show any significant improvement from TMS which indicates the need for further research of this treatment.

When addressing Wernicke’s aphasia, according to Bakheit et al. (2007), the lack of awareness of the language impairments, a common characteristic of Wernicke’s aphasia, may impact the rate and extent of therapy outcomes. Klebic et al. (2011) suggests that people benefit from continuing therapy upon discharge from the hospital to ensure generalization. Robey (1998) determined that at least 2 hours of treatment per week is recommended for making significant language gains. Spontaneous recovery may cause some language gains, but without speech-language therapy, the outcomes can be half as strong as those with therapy.

When addressing Broca’s aphasia, better outcomes occur when the person participates in therapy, and treatment is more effective than no treatment for people in the acute period. Two or more hours of therapy per week in acute and post-acute stages produced the greatest results. High intensity therapy was most effective, and low intensity therapy was almost equivalent to no therapy.

People with global aphasia are sometimes referred to as having irreversible aphasic syndrome, often making limited gains in auditory comprehension, and recovering no functional language modality with therapy. With this said, people with global aphasia may retain gestural communication skills that may enable success when communicating with conversational partners within familiar conditions. Process-oriented treatment options are limited, and people may not become competent language users as readers, listeners, writers, or speakers no matter how extensive therapy is. However, people’s daily routines and quality of life can be enhanced with reasonable and modest goals. After the first month, there is limited to no healing to language abilities of most people. There is a grim prognosis leaving 83% who were globally aphasic after the first month they will remain globally aphasic at the first year. Some people are so severely impaired that their existing process-oriented treatment approaches offer signs of progress, and therefore cannot justify the cost of therapy.

Perhaps due to the relative rareness of conduction aphasia, few studies have specifically studied the effectiveness of therapy for people with this type of aphasia. From the studies performed, results showed that therapy can help to improve specific language outcomes. One intervention that has had positive results is auditory repetition training. Kohn et al. (1990) reported that drilled auditory repetition training related to improvements in spontaneous speech, Francis et al. (2003) reported improvements in sentence comprehension, and Kalinyak-Fliszar et al. (2011) reported improvements in auditory-visual short-term memory.

Most acute cases of aphasia recover some or most skills by working with a speech-language pathologist. Recovery and improvement can continue for years after the stroke. After the onset of Aphasia, there is approximately a six-month period of spontaneous recovery; during this time, the brain is attempting to recover and repair the damaged neurons. Improvement varies widely, depending on the aphasia's cause, type, and severity. Recovery also depends on the person's age, health, motivation, handedness, and educational level.

There is no one treatment proven to be effective for all types of aphasias. The reason that there is no universal treatment for aphasia is because of the nature of the disorder and the various ways it is presented, as explained in the above sections. Aphasia is rarely exhibited identically, implying that treatment needs to be catered specifically to the individual. Studies have shown that, although there is no consistency on treatment methodology in literature, there is a strong indication that treatment in general has positive outcomes. Therapy for aphasia ranges from increasing functional communication to improving speech accuracy, depending on the person's severity, needs and support of family and friends. Group therapy allows individuals to work on their pragmatic and communication skills with other individuals with aphasia, which are skills that may not often be addressed in individual one-on-one therapy sessions. It can also help increase confidence and social skills in a comfortable setting.

Evidence dose not support the use of transcranial direct current stimulation (tDCS) for improving aphasia after stroke.

Specific treatment techniques include the following:

- Copy and Recall Therapy (CART) - repetition and recall of targeted words within therapy may strengthen orthographic representations and improve single word reading, writing, and naming

- Visual Communication Therapy (VIC) - the use of index cards with symbols to represent various components of speech

- Visual Action Therapy (VAT) - typically treats individuals with global aphasia to train the use of hand gestures for specific items

- Functional Communication Treatment (FCT) - focuses on improving activities specific to functional tasks, social interaction, and self-expression

- Promoting Aphasic's Communicative Effectiveness (PACE) - a means of encouraging normal interaction between people with aphasia and clinicians. In this kind of therapy the focus is on pragmatic communication rather than treatment itself. People are asked to communicate a given message to their therapists by means of drawing, making hand gestures or even pointing to an object

- Melodic Intonation Therapy (MIT) - aims to use the intact melodic/prosodic processing skills of the right hemisphere to help cue retrieval of words and expressive language

- Other - i.e. drawing as a way of communicating, trained conversation partners

Semantic feature analysis (SFA) -a type of aphasia treatment that targets word-finding deficits. It is based on the theory that neural connections can strengthened by using using related words and phrases that are similar to the target word, to eventually activate the target word in the brain. SFA can be implemented in multiple forms such as verbally, written, using picture cards, etc. The SLP provides prompting questions to the individual with aphasia in order for the person to name the picture provided. Studies show that SFA is an effective intervention for improving confrontational naming.

Melodic intonation therapy is used to treat non-fluent aphasia and has proved to be effective in some cases. However, there is still no evidence from randomized controlled trials confirming the efficacy of MIT in chronic aphasia. MIT is used to help people with aphasia vocalize themselves through speech song, which is then transferred as a spoken word. Good candidates for this therapy include people who have had left hemisphere strokes, non-fluent aphasias such as Broca's, good auditory comprehension, poor repetition and articulation, and good emotional stability and memory. An alternative explanation is that the efficacy of MIT depends on neural circuits involved in the processing of rhythmicity and formulaic expressions (examples taken from the MIT manual: “I am fine,” “how are you?” or “thank you”); while rhythmic features associated with melodic intonation may engage primarily left-hemisphere subcortical areas of the brain, the use of formulaic expressions is known to be supported by right-hemisphere cortical and bilateral subcortical neural networks.

According to the National Institute on Deafness and Other Communication Disorders (NIDCD), involving family with the treatment of an Aphasic loved one is ideal for all involved, because while it will no doubt assist in their recovery, it will also make it easier for members of the family to learn how best to communicate with them.

Treatment is usually carried out by speech and language therapists/pathologists, who use a wide range of techniques to stimulate language learning. In the past, there was a vogue for drilling children in grammatical exercises, using imitation and elicitation, but such methods fell into disuse when it became apparent that there was little generalisation to everyday situations. Contemporary approaches to enhancing development of language structure, for younger children at least, are more likely to adopt 'milieu' methods, in which the intervention is interwoven into natural episodes of communication, and the therapist builds on the child's utterances, rather than dictating what will be talked about. Interventions for older children, may be more explicit, telling the children what areas are being targeted and giving explanations regarding the rules and structures they are learning, often with visual supports.

In addition, there has been a move away from a focus solely on grammar and phonology toward interventions that develop children's social use of language, often working in small groups that may include typically developing as well as language-impaired peers.

Another way in contemporary remediation differ from the past is that parents are more likely to be directly involved, but this approach is largely used with preschool children, rather than those whose problems persist into school age.,

For school-aged children, teachers are increasingly involved in intervention, either in collaboration with speech and language therapists/pathologists, or as the main agents of delivery of the intervention. Evidence for the benefits of a collaborative approach is emerging, but the benefits of asking education staff to be the main deliverers of SLT intervention (the “consultative” approach) are unclear. When SLT intervention is delivered indirectly by trained SLT assistants, however, there are indications that this can be effective.

A radically different approach has been developed by Tallal and colleagues, who devised a computer-based intervention, FastForWord, that involves prolonged and intensive training on specific components of language and auditory processing. The theory underlying FastForword maintains that language difficulties are caused by a failure to make fine-grained auditory discriminations in the temporal dimension, and the computerised training materials are designed to sharpen perceptual acuity. However, a systematic review of clinical trials assessing FastForWord reported no significant gains relative to a control group.

In this field, Randomized controlled trial methodology has not been widely used, and this makes it difficult to assess clinical efficacy with confidence. Children's language will tend to improve over time, and without controlled studies, it can be hard to know how much of observed change is down to a specific treatment. There is, however, increasing evidence that direct 1:1 intervention with an SLT/P can be effective for improving vocabulary and expressive language. There have been few studies of interventions that target receptive language, though some positive outcomes have been reported.,

Speech and language therapy is typically the primary treatment for individuals with aphasia. The goal of speech and language therapy is to increase the person’s communication abilities to a level functional for daily life. Goals are chosen based on collaboration between speech language pathologists, patients, and their family/caregivers. Goals should be individualized based on the person’s aphasia symptoms and communicative needs. In 2016, Wallace et al. found the following outcomes were commonly prioritized in therapy: communication, life participation, physical and emotional well-being, normalcy, and health and support services. However, available research is inconclusive about which specific approach to speech and language therapy is most effective in treating global aphasia.

Therapy can be either group or individual. Group therapies that integrate the use of visual aids allow for enhanced social and communication-skill development. Group therapy sessions typically revolve around simple, preplanned activities or games, and aim to facilitate social communication.

One particular therapy designed specifically for treatment of aphasia is Visual Action Therapy (VAT). VAT is a non-verbal gestural output program with 3 phases and 30 total steps. The program teaches unilateral gestures as symbolic representations of real life objects. Research on the effectiveness of VAT is limited and inconclusive.

One important therapy technique includes teaching family members and caregivers strategies for more effectively communicating with their loved ones. Research offers such strategies including, simplifying sentences and using common words, gaining the person's attention before speaking, using pointing and visual cues, allowing for adequate response time, and creating a quiet environment free of distractions.

Another approach to speech and language treatment is constraint-induced language therapy (CILT). CILT involves teaching the patient to use speech in small segments but avoid using gestures and familiar words . The speech language pathologist provides positive feedback throughout and ignores any mistakes made by the patient. The intensity with which this treatment is provided has been debated in the literature. One study, performed in 2015, compared the outcomes of patients with aphasia who received CILT for either 30 hours total over 2 weeks or 30 hours distributed over 10 weeks. Results showed that both groups made significant speech and language improvements. Overall, CILT is an effective treatment at a variety of intensities.

Research supporting the efficacy of pharmacological treatments for aphasia is limited. To date, no large scale clinical trials have proven benefits of pharmacological treatment.

Treating auditory verbal agnosia with intravenous immunoglobulin (IVIG) is controversial because of its inconsistency as a treatment method. Although IVIG is normally used to treat immune diseases, some individuals with auditory verbal agnosia have responded positively to the use of IVIG. Additionally, patients are more likely to relapse when treated with IVIG than other pharmacological treatments. IVIG is, thus, a controversial treatment as its efficacy in treating auditory verbal agnosia is dependent upon each individual and varies from case to case.

Due to advances in modern neuroimaging, scientists have been able to gain a better understanding of how language is learned and comprehended. Based on the new data from the world of neuroscience, improvements can be made in coping with the disorder.

Therapists have been developing multiple methods of improving speech and comprehension. These techniques utilize three general principles: maximizing therapy occurrences, ensuring behavioral and communicative relevance, and allowing patients to focus on the language tools that are still available in his or her repertoire.

Many of the following treatment techniques are used to improve auditory comprehension in patients with aphasia:

- Use common words

- Using concrete nouns is more effective than using adjectives, adverbs, or verbs

- Using action verbs that are easily imagined

- Concise and grammatically simple sentences as opposed to lengthy sentences

- Speaking slowly, repeating oneself several times when conversing with patients who are aphasic

- Using gestures

A relatively new method of language therapy involves coincidence learning. Coincidence learning focuses on the simultaneous learning of two or more events and stipulates that these events are wired together in the brain, strengthening the learning process. Therapists use coincidence learning to find and improve language correlations or coincidences that have been either damaged or deleted by severe cases of aphasia, such as transcortical sensory aphasia. This technique is important in brain function and recovery, as it strengthens associated brain areas that remain unaffected after brian damage. It can be achieved with intensive therapy hours in order to maximize time where correlation is emphasized.

Through careful analysis of neuroimaging studies, a correlation has been developed with motor function and the understanding of action verbs. For example, leg and motor areas were seen to be activated words such as "kick", leading scientists to understand the connection between motor and language processes in the brain. This is yet another example of using relationships that are related in the brain for the purpose of rehabilitating speech and comprehension.

Of huge importance in aphasia therapy is the need to start practicing as soon as possible. Greater recovery occurs when a patient attempts to improve their comprehension and speaking soon after aphasia occurs. There is an inverse relationship between the length of time spent not practicing and level of recovery. The patient should be pushed to their limits of verbal communication in order for them to practice and build upon their remaining language skills.

One effective therapy technique is using what are known as language games in order to encourage verbal communication. One famous example is known as "Builder's Game", where a 'builder' and a 'helper' must communicate in order to effectively work on a project. The helper must hand the builder the tools he or she may need, which requires effective oral communication. The builder succeeds by requesting tools from the assistant by usually using single word utterances, such as 'hammer' or 'nail'. Thus, when the helper hands the tool to the builder, the game incorporates action with language, a key therapy technique. The assistant would then hand the builder the requested tool. Success of the game occurs when the builder's requests are specific to ensure successful building.

Ultimately, regardless of therapy plan or method, improvement in speech does not appear overnight; it requires a significant time investment by the patient as well as a dedicated speech therapist seeking to ensure that the patient is focusing on the correct speech tasks outside of the clinic. Furthermore, the patient must collaborate with friends and family members during their free time in order to maximize the efficacy of the treatment.