Neural selection and control of visually guided eye movements

Annu Rev Neurosci. 1999;22:241-59. doi: 10.1146/annurev.neuro.22.1.241.

Abstract

We review neural correlates of perceptual and motor decisions, examining whether the time they occupy explains the duration and variability of behavioral reaction times. The location of a salient target is identified through a spatiotemporal evolution of visually evoked activation throughout the visual system. Selection of the target leads to stochastic growth of movement-related activity toward a fixed threshold to generate the gaze shift. For a given image, the neural concomitants of perceptual processing occupy a relatively constant interval so that stochastic variability in response generation introduces additional variability in reaction times.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, P.H.S.
  • Review

MeSH terms

  • Animals
  • Eye Movements / physiology*
  • Humans
  • Nervous System Physiological Phenomena*
  • Psychomotor Performance / physiology*
  • Saccades / physiology
  • Vision, Ocular / physiology*