May 2008
Volume 8, Issue 6
Free
Vision Sciences Society Annual Meeting Abstract  |   May 2008
Roving in perceptual learning: stimulus interference and overlapping neural populations
Author Affiliations
  • Elisa M. Tartaglia
    Laboratory of Psychophysics, Brain Mind Institute, Ecole Polytechnique Fédérale de Lausanne (EPFL), Switzerland
  • Kristoffer C. Aaberg
    Laboratory of Psychophysics, Brain Mind Institute, Ecole Polytechnique Fédérale de Lausanne (EPFL), Switzerland
  • Michael H. Herzog
    Laboratory of Psychophysics, Brain Mind Institute, Ecole Polytechnique Fédérale de Lausanne (EPFL), Switzerland
Journal of Vision May 2008, Vol.8, 479. doi:10.1167/8.6.479
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      Elisa M. Tartaglia, Kristoffer C. Aaberg, Michael H. Herzog; Roving in perceptual learning: stimulus interference and overlapping neural populations. Journal of Vision 2008;8(6):479. doi: 10.1167/8.6.479.

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

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Abstract

Performance usually improves when observers train with one type of a visual stimulus. Roving denotes the situation when, instead of one, two or more types of stimuli are presented randomly interleaved (one per trial). For some stimulus types, performance improves also in roving situations whereas for others it does not. To understand when roving impedes perceptual learning, we conducted four experiments. In each experiment, the very same bisection stimulus was randomly interleaved with a different stimulus type. Performance improved when a bisection and a vernier stimulus were randomly interleaved. However, no learning was found when we randomly interleaved this bisection stimulus with another one being twice as long. Based on these results, we propose that roving impedes performance when two stimuli excite strongly overlapping neural populations.

Tartaglia, E. M. Aaberg, K. C. Herzog, M. H. (2008). Roving in perceptual learning: stimulus interference and overlapping neural populations [Abstract]. Journal of Vision, 8(6):479, 479a, http://journalofvision.org/8/6/479/, doi:10.1167/8.6.479. [CrossRef]
Footnotes
 This research was supported by the Pro*Doc “Processes of Perception” of the SNF.
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