Disordered recognition and perception of human faces in acute schizophrenia and experimental psychosis.

Three disorders of facial recognition and perception in acute schizophrenia and mescaline-induced psychosis are described and illustrated using original clinical and experimental material: "affective prosopagnosia" or stress-related dysfunctional face recognition; "physiognomization" of the environment or persistent illusions and hallucinations of nonspecific faces; and the "mirror phenomenon" or the experience of inner alienation from one's reflected face, which is perceived as independently alive, sinister, and generally physically distorted. It is proposed that neuropsychology suggests relationships between these phenomena that might otherwise be less apparent. No final neurobiological solution to the problem of dysfunctional facial perception and recognition in psychosis is presented, but various insights and suggestive models from the neurosciences are discussed. Attention is also paid to the conditions under which one might need to combine neuropsychological approaches with hermeneutically oriented analyses.