Acquired prosopagnosia is usually a consequence of bilateral or right hemisphere lesions and is often associated with topographical disorientation and dyschromatopsia. Left temporo-occipital lesions sometimes result in a face recognition disorder but in a context of visual object agnosia with spared familiarity feelings for faces, usually in left-handers. We describe a patient with a left temporo-occipital hemorrhagic lesion unexpectedly resulting in a deficit of face familiarity, which could represent a mild form of associative prosopagnosia. Our patient failed to feel familiarity feelings even with very well-known famous faces but had neither visual object agnosia nor defects with semantics or naming of celebrities. This was confirmed even when the patient was re-tested a year later. We speculate that a graded lateralization of face processing could be at the basis of occasional cases of prosopagnosia.

Papagno, C., Barvas, E., Tettamanti, M., Gainotti, G., Selective defects of face familiarity associated to a left temporo-occipital lesion, <<NEUROLOGICAL SCIENCES>>, 2020; 2020 (N/A): N/A-N/A. [doi:10.1007/s10072-020-04581-5] [http://hdl.handle.net/10807/163647]

Selective defects of face familiarity associated to a left temporo-occipital lesion

Gainotti, Guido
2020

Abstract

Acquired prosopagnosia is usually a consequence of bilateral or right hemisphere lesions and is often associated with topographical disorientation and dyschromatopsia. Left temporo-occipital lesions sometimes result in a face recognition disorder but in a context of visual object agnosia with spared familiarity feelings for faces, usually in left-handers. We describe a patient with a left temporo-occipital hemorrhagic lesion unexpectedly resulting in a deficit of face familiarity, which could represent a mild form of associative prosopagnosia. Our patient failed to feel familiarity feelings even with very well-known famous faces but had neither visual object agnosia nor defects with semantics or naming of celebrities. This was confirmed even when the patient was re-tested a year later. We speculate that a graded lateralization of face processing could be at the basis of occasional cases of prosopagnosia.
2020
Inglese
Papagno, C., Barvas, E., Tettamanti, M., Gainotti, G., Selective defects of face familiarity associated to a left temporo-occipital lesion, <<NEUROLOGICAL SCIENCES>>, 2020; 2020 (N/A): N/A-N/A. [doi:10.1007/s10072-020-04581-5] [http://hdl.handle.net/10807/163647]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10807/163647
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