Examining the role of red background in magnocellular contribution to face perception

Bhuvanesh Awasthi, Mark A. Williams, Jason Friedman

Research output: Contribution to journalArticlepeer-review

Abstract

This study examines the role of the magnocellular system in the early stages of face perception, in particular sex categorization. Utilizing the specific property of magnocellular suppression in red light, we investigated visually guided reaching to low and high spatial frequency hybrid faces against red and grey backgrounds. The arm movement curvature measure shows that reduced response of the magnocellular pathway interferes with the low spatial frequency component of face perception. This finding provides behavioral evidence for magnocellular contribution to non-emotional aspect of face perception.

Original languageEnglish
Article numbere1617
JournalPeerJ
Volume2016
Issue number2
DOIs
StatePublished - 2016

Keywords

  • Face perception
  • Magnocellular pathway
  • Reach trajectories
  • Spatial frequency

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