December 2002
Volume 2, Issue 10
Free
OSA Fall Vision Meeting Abstract  |   December 2002
Color vision and motor control
Author Affiliations
  • Karl R. Gegenfurtner
    Department of Psychology, Justus-Liebig-University, Giessen, Germany
Journal of Vision December 2002, Vol.2, 62. doi:10.1167/2.10.62
  • Views
  • Share
  • Tools
    • Alerts
      ×
      This feature is available to authenticated users only.
      Sign In or Create an Account ×
    • Get Citation

      Karl R. Gegenfurtner; Color vision and motor control. Journal of Vision 2002;2(10):62. doi: 10.1167/2.10.62.

      Download citation file:


      © ARVO (1962-2015); The Authors (2016-present)

      ×
  • Supplements
Abstract

Color vision is strongly associated with object perception and the ventral processing stream in primate cortex. There have been only few studies of the chromatic properties of neurons in cortical areas belonging to the dorsal stream, and few studies of the use of color in controlling the motor system.

We ran several series of experiments to investigate how well color signals can be used to control eye and hand movements. In particular, we tested the precision of manual pointing towards objects defined by isoluminant color differences and the maximum preshape aperture of grasping movements towards isoluminant objects. In both of these tasks, performance for the colored objects was equal to performance with objects defined by luminance contrast. The same results were obtained for both the initiation and steady state phase of smooth pursuit eye movements. Overall, the only difference between color and luminance in motor control seems to be a 10 msec latency difference that seems to be due to an early stage of sensory processing.

The results imply that the color signals can be efficiently used by the motor system for a variety of actions. Possible neural mechanisms will be discussed.

Gegenfurtner, K. R.(2002). Color vision and motor control [Abstract]. Journal of Vision, 2( 10): 62, 62a, http://journalofvision.org/2/10/62/, doi:10.1167/2.10.62. [CrossRef]
×
×

This PDF is available to Subscribers Only

Sign in or purchase a subscription to access this content. ×

You must be signed into an individual account to use this feature.

×