The effect of previously viewed velocities on motion extrapolation

Vision Res. 2008 Aug;48(18):1884-93. doi: 10.1016/j.visres.2008.05.023. Epub 2008 Jul 15.

Abstract

There is preliminary evidence for interference between subsequently encoded velocities. We explored this effect using a motion extrapolation paradigm. In Experiments 1 and 2, moving targets disappeared behind an occluder. Participants responded at the time when they thought the target should reappear. Participants responded as if the current velocity was faster after a previous trial with a fast velocity and vice versa. In Experiment 3 the targets reappeared either on-time, early or late. A greater proportion of early trials were reported 'correct' following a fast previous trial. These experiments indicate that blending occurs between successively encoded velocity representations.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Female
  • Humans
  • Judgment / physiology
  • Male
  • Memory / physiology*
  • Motion Perception / physiology*
  • Perceptual Masking / physiology
  • Photic Stimulation / methods
  • Time Perception / physiology