Our eyes deviate away from a location where a distractor is expected to appear

Exp Brain Res. 2006 Mar;169(3):338-49. doi: 10.1007/s00221-005-0147-2. Epub 2005 Nov 5.

Abstract

Previous research has shown that in order to make an accurate saccade to a target object, nearby distractor objects need to be inhibited. The extent to which saccade trajectories deviate away from a distractor is often considered to be an index of the strength of inhibition. The present study shows that the mere expectation that a distractor will appear at a specific location is enough to generate saccade deviations away from this location. This suggests that higher-order cognitive processes such as top-down expectancy interact with low-level structures involved in eye movement control. The results will be discussed in the light of current theories of target selection and possible neurophysiological correlates.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Analysis of Variance
  • Attention / physiology*
  • Eye Movements / physiology*
  • Female
  • Field Dependence-Independence*
  • Humans
  • Inhibition, Psychological*
  • Male
  • Photic Stimulation / methods
  • Reaction Time / physiology
  • Signal Detection, Psychological
  • Time Factors
  • Visual Perception / physiology*