Eye-hand coordination: oculomotor control in rapid aimed limb movements

J Exp Psychol Hum Percept Perform. 1990 May;16(2):248-67. doi: 10.1037//0096-1523.16.2.248.

Abstract

Three experiments are reported in which Ss produced rapid wrist rotations to a target while the position of their eyes was being monitored. In Experiment 1, Ss spontaneously executed a saccadic eye movement to the target around the same time as the wrist began to move. Experiment 2 revealed that wrist-rotation accuracy suffered if Ss were not allowed to move their eyes to the target, even when visual feedback about the moving wrist was unavailable. In Experiment 3, wrist rotations were equally accurate when Ss produced either a saccadic or a smooth-pursuit eye movement to the target. However, differences were observed in the initial-impulse and error-correction phases of the wrist rotations, depending on the type of eye movement involved. The results suggest that aimed limb movements use information from the oculomotor system about both the static position of the eyes and the dynamic characteristics of eye movements. Furthermore, the information that governs the initial impulse is different from that which guides final error corrections.

Publication types

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

MeSH terms

  • Adult
  • Attention*
  • Distance Perception
  • Eye Movements*
  • Humans
  • Orientation*
  • Psychomotor Performance*
  • Pursuit, Smooth
  • Reaction Time*
  • Saccades