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ERIC Number: EJ931670
Record Type: Journal
Publication Date: 2010-Oct
Pages: 13
Abstractor: As Provided
Reference Count: 87
ISBN: N/A
ISSN: ISSN-0096-1523
The Role of Fractality in Perceptual Learning: Exploration in Dynamic Touch
Stephen, Damian G.; Arzamarski, Ryan; Michaels, Claire F.
Journal of Experimental Psychology: Human Perception and Performance, v36 n5 p1161-1173 Oct 2010
Perceptual systems must learn to explore and to use the resulting information to hone performance. Optimal performance depends on using information available at many time scales, from the near instantaneous values of variables underlying perception (i.e., detection), to longer term information about appropriate scaling (i.e., calibration), to yet longer term information guiding variable use (i.e., attunement). Fractal fluctuations in explorations would entail fluctuation at all time scales, allowing perceptual systems a flexible way to detect information at all time scales. We tested whether perceptual learning in dynamic touch is related to the fractality of wielding behaviors. A reanalysis of wielding behaviors from Arzamarski, Isenhower, Kay, Turvey, and Michaels (2010) revealed that exploratory movements were fractal and that a fractal-scaling exponent predicts individual differences in haptic judgments. (Contains 4 tables and 7 figures.)
American Psychological Association. Journals Department, 750 First Street NE, Washington, DC 20002-4242. Tel: 800-374-2721; Tel: 202-336-5510; Fax: 202-336-5502; e-mail: order@apa.org; Web site: http://www.apa.org/publications
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A