When diagnosing allochiria, it is important to consider the sensory and the motor aspects of the problem. In absence of knowledge there are a number of ways in which the various symptoms may be overlooked or misinterpreted and as the condition goes frequently unrecognized. One rare example in medicine that causes a wrong diagnosis of allochiria is due to the unawareness of a few simple facts than to any failure in judgment. It is evident that the details of the sensory symptoms get overlooked when testing a patient's localizing capacity. The observer neglects to inquire expressly as to the side to which the sensation is referred. This is evident when patients with allochiria show no fault in sensorial perception and localization. However, even if the patient mentions the wrong side, it is sometimes being just regarded as a slip of the tongue and matter may not be pursued any further. Looking at the motor aspect of allochiria, the symptoms again are described in a misleading way because the symptoms are less obvious. Unless motor manifestations are carefully analyzed, they may be interpreted as clumsiness or weakness. Moreover, when patients complained of weakness and awkwardness of right side—examinations apparently confirmed that the truth of this statement and defect was marked as acts consciously performed and was present only in relation to such acts. If a patient says that he cannot tell on which side the certain stimulus is applied—existence of allochiria is confirmed, provided that sensibility is intact.

Allochiria represents a psychical affection and the occurrence of any form of allochiria should be regarded as a positive indication of the presence of hysteria. Recognition of the allochiria may throw light upon a number of symptoms that would otherwise be misinterpreted as paresis, aboulia, and defective sensibility. This enables a correct analysis to be made of the precise defects present and serve as a guide toward the original focus of the whole affection and proving an important step in the exact psychological diagnosis that is an essential preliminary to the scientific treatment of hysteria.