ERIC Number: EJ777461
Record Type: Journal
Publication Date: 2007-Oct
Reference Count: 0
Gauging Possibilities for Action Based on Friction Underfoot
Joh, Amy S.; Adolph, Karen E.; Narayanan, Priya J.; Dietz, Victoria A.
Journal of Experimental Psychology: Human Perception and Performance, v33 n5 p1145-1157 Oct 2007
Standing and walking generate information about friction underfoot. Five experiments examined whether walkers use such perceptual information for prospective control of locomotion. In particular, do walkers integrate information about friction underfoot with visual cues for sloping ground ahead to make adaptive locomotor decisions? Participants stood on low-, medium-, and high-friction surfaces on a flat platform and made perceptual judgments for possibilities for locomotion over upcoming slopes. Perceptual judgments did not match locomotor abilities: Participants tended to overestimate their abilities on low-friction slopes and underestimate on high-friction slopes (Experiments 1-4). Accuracy improved only for judgments made while participants were in direct contact with the slope (Experiment 5), highlighting the difficulty of incorporating information about friction underfoot into a plan for future actions.
Descriptors: Cues, Physical Activities, Motion, Kinetics, Human Body, Kinesthetic Perception, Adjustment (to Environment), Information Processing
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A