Superior voice recognition in a patient with acquired prosopagnosia and object agnosia.

Détails

ID Serval
serval:BIB_11D708FD5DF6
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Superior voice recognition in a patient with acquired prosopagnosia and object agnosia.
Périodique
Neuropsychologia
Auteur(s)
Hoover A.E., Démonet J.F., Steeves J.K.
ISSN
1873-3514 (Electronic)
ISSN-L
0028-3932
Statut éditorial
Publié
Date de publication
2010
Peer-reviewed
Oui
Volume
48
Numéro
13
Pages
3725-3732
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov'tPublication Status: ppublish
Résumé
Anecdotally, it has been reported that individuals with acquired prosopagnosia compensate for their inability to recognize faces by using other person identity cues such as hair, gait or the voice. Are they therefore superior at the use of non-face cues, specifically voices, to person identity? Here, we empirically measure person and object identity recognition in a patient with acquired prosopagnosia and object agnosia. We quantify person identity (face and voice) and object identity (car and horn) recognition for visual, auditory, and bimodal (visual and auditory) stimuli. The patient is unable to recognize faces or cars, consistent with his prosopagnosia and object agnosia, respectively. He is perfectly able to recognize people's voices and car horns and bimodal stimuli. These data show a reverse shift in the typical weighting of visual over auditory information for audiovisual stimuli in a compromised visual recognition system. Moreover, the patient shows selectively superior voice recognition compared to the controls revealing that two different stimulus domains, persons and objects, may not be equally affected by sensory adaptation effects. This also implies that person and object identity recognition are processed in separate pathways. These data demonstrate that an individual with acquired prosopagnosia and object agnosia can compensate for the visual impairment and become quite skilled at using spared aspects of sensory processing. In the case of acquired prosopagnosia it is advantageous to develop a superior use of voices for person identity recognition in everyday life.
Mots-clé
Acoustic Stimulation, Adult, Agnosia/physiopathology, Auditory Perception/physiology, Female, Humans, Male, Photic Stimulation, Prosopagnosia/physiopathology, Recognition (Psychology)/physiology, Visual Perception/physiology
Pubmed
Web of science
Création de la notice
24/03/2013 20:28
Dernière modification de la notice
03/03/2018 13:54
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