Intracerebral electrical stimulation of the right anterior fusiform gyrus impairs human face identity recognition.
Neuroimage
; 250: 118932, 2022 04 15.
Article
em En
| MEDLINE
| ID: mdl-35085763
ABSTRACT
Brain regions located between the right fusiform face area (FFA) in the middle fusiform gyrus and the temporal pole may play a critical role in human face identity recognition but their investigation is limited by a large signal drop-out in functional magnetic resonance imaging (fMRI). Here we report an original case who is suddenly unable to recognize the identity of faces when electrically stimulated on a focal location inside this intermediate region of the right anterior fusiform gyrus. The reliable transient identity recognition deficit occurs without any change of percept, even during nonverbal face tasks (i.e., pointing out the famous face picture among three options; matching pictures of unfamiliar or familiar faces for their identities), and without difficulty at recognizing visual objects or famous written names. The effective contact is associated with the largest frequency-tagged electrophysiological signals of face-selectivity and of familiar and unfamiliar face identity recognition. This extensive multimodal investigation points to the right anterior fusiform gyrus as a critical hub of the human cortical face network, between posterior ventral occipito-temporal face-selective regions directly connected to low-level visual cortex, the medial temporal lobe involved in generic memory encoding, and ventral anterior temporal lobe regions holding semantic associations to people's identity.
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Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Lobo Temporal
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Imageamento por Ressonância Magnética
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Epilepsias Parciais
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Reconhecimento Facial
Tipo de estudo:
Diagnostic_studies
Limite:
Adult
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Humans
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Male
Idioma:
En
Ano de publicação:
2022
Tipo de documento:
Article