The Speed of Sight

  • Authors:
  • C. Keysers;D.-K. Xiao;P. Földiák;D. I. Perrett

  • Affiliations:
  • Università di Parma;University of St. Andrews;University of St. Andrews;University of St. Andrews

  • Venue:
  • Journal of Cognitive Neuroscience
  • Year:
  • 2001

Quantified Score

Hi-index 0.00

Visualization

Abstract

Macaque monkeys were presented with continuous rapid serial visual presentation (RSVP) sequences of unrelated naturalistic images at rates of 14–222 msec/image, while neurons that responded selectively to complex patterns (e.g., faces) were recorded in temporal cortex. Stimulus selectivity was preserved for 65% of these neurons even at surprisingly fast presentation rates (14 msec/image or 72 images/sec). Five human subjects were asked to detect or remember images under equivalent conditions. Their performance in both tasks was above chance at all rates (14–111 msec/image). The performance of single neurons was comparable to that of humans and responded in a similar way to changes in presentation rate. The implications for the role of temporal cortex cells in perception are discussed.