Mar 27, 2016

Disentangling the representation of identity from head view along the human face processing pathway.

BioRxiv : the Preprint Server for Biology
J. Swaroop GuntupalliM. Ida Gobbini

Abstract

Neural models of face perception implicate a network of regions in the ventral visual stream for recognition of identity. In this fMRI neural decoding study we report that this pathway culminates in a right inferior frontal face area (rIFFA) in humans where representations of identities have been disentangled from variable visual features in different views of the same person. Representations in early visual cortex and the occipital face area distinguish head views, invariant across identities. An intermediate level of representation in the fusiform face area distinguishes identities but still is entangled with head view. View-invariant representation of identities emerges in the rIFFA providing a critical link to the extended face perception system, affording activation of person knowledge and emotional responses to familiar faces.

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Mentioned in this Paper

Study
Biochemical Pathway
Occipital Lobe
Face
Region of Face
Emotional Responses
Head Neoplasms
FMRI
Entire Brodmann Areas 17 (Striate Cortex),18 (Parastriate Cortex) and 19 (Peristriate Cortex) of Occipital Lobe
Recognition (Psychology)

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