September 2018
Volume 18, Issue 10
Open Access
Vision Sciences Society Annual Meeting Abstract  |   September 2018
Neural Correlates of Holistic Face Processing
Author Affiliations
  • Celia Foster
    Max Planck Institute for Biological Cybernetics, GermanyGraduate Training Centre of Neuroscience, International Max Planck Research School, University of Tübingen, Germany
  • Mintao Zhao
    Max Planck Institute for Biological Cybernetics, GermanySchool of Psychology, University of East Anglia, UK
  • Andreas Bartels
    Max Planck Institute for Biological Cybernetics, GermanyCentre for Integrative Neuroscience, Germany
  • Isabelle Bülthoff
    Max Planck Institute for Biological Cybernetics, Germany
Journal of Vision September 2018, Vol.18, 1085. doi:
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      Celia Foster, Mintao Zhao, Andreas Bartels, Isabelle Bülthoff; Neural Correlates of Holistic Face Processing. Journal of Vision 2018;18(10):1085.

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      © ARVO (1962-2015); The Authors (2016-present)

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Holistic processing is the tendency to perceive an object as an indecomposable whole rather than by its parts. Psychological research has shown that faces are processed holistically. However, recent studies have shown that non-expertise objects with salient Gestalt information are also processed holistically, questioning whether this phenomena is unique to faces. Neuroimaging studies have linked holistic processing of faces to brain activity in face-responsive regions of the occipital-temporal cortex. However, these studies specifically localized face-responsive brain regions, but not object, scene or perceptual grouping related brain regions. In this study, we aimed to explore the neural correlates of holistic face processing in a larger range of brain regions, in order to investigate how specific the activation is to face regions. We used fMRI to record the brain activity of subjects performing a composite face task. Participants viewed pairs of faces and determined whether the top halves of the faces were the same or different. Additionally, we localized specific regions of interest defined by their responses to faces, objects, scenes and perceptual grouping, allowing us to investigate how activity in these regions changed during the composite face task. Surprisingly, we found that activity in the occipital face area, fusiform face area and anterior temporal face area did not show a clear pattern of activity relating to the behavioural composite effect. However, activity in the parahippocampal place area, superior parietal lobule and early visual cortex all showed a pattern of activity consistent with the behavioural composite effect. These results suggest that holistic processing occurs in brain regions involved in spatial processing, perceptual grouping and early vision, rather than being limited to face-responsive brain regions. We hypothesize that holistic perception may be driven by these factors rather than identity discrimination, in line with the behavioural finding of the composite effect in non-expertise objects.

Meeting abstract presented at VSS 2018


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