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Research article summary:
Learned perceptual associations influence visuomotor programming under limited conditions: kinematic consistency.
Abstract Extract:
Previous findings have suggested that visuomotor programming can make use of learned size information in experimental paradigms where movement kinematics are quite consistent from trial to trial. The present experiment was designed to test whether or not ... (Full abstract text below) Published 2002Dec
in Journal: Exp Brain Res
(Language : eng)
Full Pubmed Extract
This information was retrieved, real-time, on your behalf from the public area of the Pubmed website:
1. Exp Brain Res.
2002 Dec;147(4):485-93
Learned perceptual associations influence visuomotor programming under limited conditions: kinematic consistency.
Haffenden AM, Goodale MA
CIHR Group on Action and Perception, Department of Psychology, University of Western Ontario, London, Ontario, N6A 5C2, Canada.
Previous findings have suggested that visuomotor programming can make use of learned size information in experimental paradigms where movement kinematics are quite consistent from trial to trial. The present experiment was designed to test whether or not this conclusion could be generalized to a different manipulation of kinematic variability. As in previous work, an association was established between the size and colour of square blocks (e.g. red = large; yellow = small, or vice versa). Associating size and colour in this fashion has been shown to reliably alter the perceived size of two test blocks halfway in size between the large and small blocks: estimations of the test block matched in colour to the group of large blocks are smaller than estimations of the test block matched to the group of small blocks. Subjects grasped the blocks, and on other trials estimated the size of the blocks. These changes in perceived block size were incorporated into grip scaling only when movement kinematics were highly consistent from trial to trial; that is, when the blocks were presented in the same location on each trial. When the blocks were presented in different locations grip scaling remained true to the metrics of the test blocks despite the changes in perceptual estimates of block size. These results support previous findings suggesting that kinematic consistency facilitates the incorporation of learned perceptual information into grip scaling.
PMID : 12444480 [PubMed - Indexed for MEDLINE]
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Full Author Information
| First Name | LastName | Initials |
| Angela M | Haffenden | AM |
| Melvyn A | Goodale | MA |
Affiliation: CIHR Group on Action and Perception, Department of Psychology, University of Western Ontario, London, Ontario, N6A 5C2, Canada.
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