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Titolo:
Impaired recognition of faces following right and left hemispheric lesions: covert recognition, feeling of knowing, and respective function of each hemisphere
Autore:
Verstichel, P;
Indirizzi:
Ctr Hosp Intercommunal, Serv Neurol, F-94010 Creteil, France Ctr Hosp Intercommunal Creteil France F-94010 l, F-94010 Creteil, France
Titolo Testata:
BULLETIN DE L ACADEMIE NATIONALE DE MEDECINE
fascicolo: 3, volume: 185, anno: 2001,
pagine: 537 - 553
SICI:
0001-4079(2001)185:3<537:IROFFR>2.0.ZU;2-#
Fonte:
ISI
Lingua:
FRE
Soggetto:
PROSOPAGNOSIC PATIENT; FACIAL RECOGNITION; AGNOSIA; OBJECT; DAMAGE;
Keywords:
prosopagnosia; memory disorders; pattern recognition, visual; cognition;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
32
Recensione:
Indirizzi per estratti:
Indirizzo: Verstichel, P Ctr Hosp Intercommunal, Serv Neurol, 40 Ave Verdun, F-94010 Creteil, France Ctr Hosp Intercommunal 40 Ave Verdun Creteil France F-94010
Citazione:
P. Verstichel, "Impaired recognition of faces following right and left hemispheric lesions: covert recognition, feeling of knowing, and respective function of each hemisphere", B ACA N MED, 185(3), 2001, pp. 537-553

Abstract

We report three observations of patients who suffered from impaired face recognition following cerebral lesions. Two had classical prosopagnosia, resulting from bilateral in one case and right unilateral occipito-temporal inthe other. They could not differentiate famous face from unknown ones, anddid not feel any familiarity. The third patient has a normal feeling of knowing, could distinguish between familiar and unfamiliar faces, but was unable to evoke any biographical information about the personalities. Prosopagnosic patients demonstrated in an experimental condition of learning face-name pairs, implicit knowledge. We assume that these capacities, were dependant of the activation of networks coding familiar faces in memory. Mental imagery of faces were normal in these two cases. In addition, stimulation ofmental imagery in the first patient improved implicit knowledge in forced choice tasks. These cases throws a light on the respective role of each hemisphere in face recognition. The right hemisphere is advantaged in perceptual analysis, and activates, from the perceived faces, mnestic systems whichcodes for previously encountered faces. It generates feeling of familiarity, probably by the way of specific systems which differs from, and completes, those allowing identification. The left hemisphere enable access to semantic-biographic knowledge in a conscious, verbal and explicit way.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 09/04/20 alle ore 07:46:24