May 2008
Volume 8, Issue 6
Free
Vision Sciences Society Annual Meeting Abstract  |   May 2008
Perceptual learning requires a minimal number of trials per session, but no sleep
Author Affiliations
  • Kristoffer Åberg
    Laboratory of Psychophysics, Brain Mind Institute, Ecole Polytechnique Fédérale de Lausanne (EPFL), Switzerland
  • Elisa Tartaglia
    Laboratory of Psychophysics, Brain Mind Institute, Ecole Polytechnique Fédérale de Lausanne (EPFL), Switzerland
  • Michael Herzog
    Laboratory of Psychophysics, Brain Mind Institute, Ecole Polytechnique Fédérale de Lausanne (EPFL), Switzerland
Journal of Vision May 2008, Vol.8, 1130. doi:10.1167/8.6.1130
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      Kristoffer Åberg, Elisa Tartaglia, Michael Herzog; Perceptual learning requires a minimal number of trials per session, but no sleep. Journal of Vision 2008;8(6):1130. doi: 10.1167/8.6.1130.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

A common assumption in perceptual learning is that the improvement of performance basically depends on the amount of training. However, other factors such as sleep and training intensity (trials per session) have also been shown to be important. We trained four groups with 1600 trials in total, using a Chevron discrimination task. Groups differed in the number of trials per session and the amount of sleep between sessions. One group trained two sessions on two consecutive days with 800 trials per session. Performance improved. Another group trained ten sessions on ten consecutive days with 160 trials per session. Performance did not improve. This result suggests that a minimal number of trials per session is necessary for perceptual learning. Next, we calculated the changes in performance between sessions for the groups which improved performance. No significant improvement of performance was found irrespective of the amount of sleep between sessions. Hence, perceptual learning with Chevrons seems to require a minimal number of trials per session, but no sleep.

Åberg, K. Tartaglia, E. Herzog, M. (2008). Perceptual learning requires a minimal number of trials per session, but no sleep [Abstract]. Journal of Vision, 8(6):1130, 1130a, http://journalofvision.org/8/6/1130/, doi:10.1167/8.6.1130. [CrossRef]
Footnotes
 This work was supported by the Pro*Doc “Processes of Perception” of theSNF.
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