Neural Tuning Size in a Model of Primate Visual Processing Accounts for Three Key Markers of Holistic Face Processing

TitleNeural Tuning Size in a Model of Primate Visual Processing Accounts for Three Key Markers of Holistic Face Processing
Publication TypeJournal Article
Year of Publication2016
AuthorsTan, C, Poggio, T
JournalPublic Library of Science | PLoS ONE
Volume1(3): e0150980
Date Published03/2016
Abstract

Faces are an important and unique class of visual stimuli, and have been of interest to neuroscientists  for many years. Faces are known to elicit certain characteristic behavioral markers, collectively labeled “holistic processing”, while non-face objects are not processed  holistically. However, little is known about the underlying neural mechanisms. The main aim of this computational simulation work is to investigate the neural mechanisms that make
face processing holistic. Using a model of primate visual processing, we show that a single key factor, “neural tuning size”, is able to account for three important markers of holistic face processing: the Composite Face Effect (CFE), Face Inversion Effect (FIE) and Whole-Part Effect (WPE). Our proof-of-principle specifies the precise neurophysiological property that corresponds to the poorly-understood notion of holism, and shows that this one neural property controls three classic behavioral markers of holism. Our work is consistent with neurophysiological evidence, and makes further testable predictions. Overall, we provide a parsimonious account of holistic face processing, connecting computation, behavior and neurophysiology.

URLhttp://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0150980
DOI10.1371/journal.pone.0150980

Download: 

Research Area: 

CBMM Relationship: 

  • CBMM Funded