What can psychoanalysis and neurology learn from each other?

It has been proposed that any psychosis involves both a deficiency of specular image and a non-repression of the object (in the psychoanalytical acceptation of the term). In somatoparaphrenia (personification of the left paralyzed hand due to right brain lesions), a comparable correlation is observed, body image being broken up while the object appears unrepressed in the patient’s discourse. This supports the hypothesis that, inversely, in neurosis, the stability of specular image is guaranteed by the repression of the object. This also suggests that, in neurological or psychiatric disorders of specular image, cognition cannot be explored with the same methods as those designed for neurotic subjects.