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Intermittent vision and one-handed catching: the effect of general and specific task experience
Authors:Bennett Simon  Ashford Derel  Rioja Natalia  Elliott Digby
Institution:Department of Optometry and Neuroscience, University of Manchester, Institute of Science and Technology, Manchester, UK. s.j.bennett@umist.ac.uk
Abstract:In Experiment 1, 15 skilled and 15 less skilled participants performed 1-handed catching in 4 conditions. For both groups, catching performance deteriorated significantly when no visual information was available for 40 ms between 20-ms visual samples (20/40) and continued to decline with subsequent increases in the duration between visual samples (i.e., 20/80 and 20/120). In Experiment 2, 50 participants performed a pretest and a posttest in a 20/80 condition, separated by 4 blocks of practice (N=80). Participants who practiced with intermittent vision (20/40, 20/80, and 20/120) exhibited a significant improvement between pretest and posttest. Although general practice with intermittent vision enabled some adaptation, posttest performance did not equal performance in the 1st block of continuous vision.
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