Adrian Nestor

Benjamini

Braun

David C. Plaut

Freiwald

Goeleven

Goesaert

Gross

Langner

Mark D. Vida

Marlene Behrmann

Rousselet

Wyatte

Significance
          Humans can rapidly discriminate among many highly similar facial identities across identity-preserving image transformations (e.g., changes in facial expression), an ability that requires the system to rapidly transform image-based inputs into a more abstract, identity-based representation. We used magnetoencephalography to provide a temporally precise description of this transformation within human face-selective cortical regions. We observed a transition from an image-based representation toward an identity-based representation after ∼200 ms, a result suggesting that, rather than computing a single representation, a given face-selective region may represent multiple distinct types of information about face identity at different times. Our results advance our understanding of the microgenesis of fine-grained, high-level neural representations of object identity, a process critical to human visual expertise.</jats:p

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Proceedings of the National Academy of Sciences

Spatiotemporal dynamics of similarity-based neural representations of facial identity

Spatiotemporal dynamics of similarity-based neural representations of facial identity

Abstract

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