fMRI evidence for the neural representation of faces

Gunter Loffler, Grigori Yourganov, Frances Wilkinson, Hugh R. Wilson

Research output: Contribution to journalArticle

Abstract

fMRI (functional magnetic resonance imaging) studies on humans have shown a cortical area, the fusiform face area, that is specialized for face processing. An important question is how faces are represented within this area. This study provides direct evidence for a representation in which individual faces are encoded by their direction (facial identity) and distance (distinctiveness) from a prototypical (mean) face. When facial geometry (head shape, hair line, internal feature size and placement) was varied, the fMRI signal increased with increasing distance from the mean face. Furthermore, adaptation of the fMRI signal showed that the same neural population responds to faces falling along single identity axes within this space.

Original languageEnglish
JournalNature Neuroscience
DOIs
Publication statusPublished - 1 Sep 2005

Keywords

  • facial geometry
  • facial identity
  • functional magnetic resonance imaging

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