Intermittent vision and one-handed catching: the effect of general and specific task experience.
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.
Bennett
Simon
S
Department of Optometry and Neuroscience, University of Manchester, Institute of Science and Technology, Manchester, UK. s.j.bennett@umist.ac.uk
Ashford
Derel
D
Rioja
Natalia
N
Elliott
Digby
D
D000328:Adult; D005260:Female; D006225:Hand / Q000502:physiology*; D006801:Humans; D008297:Male; D009068:Movement / Q000502:physiology*; D011597:Psychomotor Performance / Q000502:physiology*; D013715:Tennis; D014785:Vision, Ocular / Q000502:physiology*