Journal article

Publication year: 2009

Pages: 15-22

Journal: Experimental Brain Research

Volume number: 197

Issue number: 1

ISSN: 0014-4819

Open access status: Hybrid

DOI Link: https://doi.org/10.1007/s00221-009-1841-2

Publisher: Springer

Abstract: 
We used a virtual reality setup to let participants grasp discs, which differed in luminance, chromaticity and size. Current theories on perception and action propose a division of labor in the brain into a color proficient perception pathway and a less color-capable action pathway. In this study, we addressed the question whether isoluminant stimuli, which provide only a chromatic but no luminance contrast for action planning, are harder to grasp than stimuli providing luminance contrast or both kinds of contrast. Although we found that grasps of isoluminant stimuli had a slightly steeper slope relating the maximum grip aperture to disc size, all other measures of grip quality were unaffected. Overall, our results do not support the view that isoluminance of stimulus and background impedes the planning of a grasping movement.

Harvard Citation style: Kleinholdermann, U., Franz, V., Gegenfurtner, K. and Stockmeier, K. (2009) Grasping isoluminant stimuli, Experimental Brain Research, 197(1), pp. 15-22. https://doi.org/10.1007/s00221-009-1841-2

APA Citation style: Kleinholdermann, U., Franz, V., Gegenfurtner, K., & Stockmeier, K. (2009). Grasping isoluminant stimuli. Experimental Brain Research. 197(1), 15-22. https://doi.org/10.1007/s00221-009-1841-2