Reverse feedback induces position and orientation specific changes

Michael H Herzog, K R F Ewald, Frouke Hermens, Manfred Fahle

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)


To investigate the mechanisms of perceptual learning, we recently introduced a paradigm in which incorrect, reverse feedback followed after some but not all vernier presentations. This feedback paradigm exerted a strong effect on performance that seemed to bias decisions rather than to yield perceptual learning. Here, we show that observers can develop independent decision biases for different stimulus orientations as well as for different visual field positions. Our results demonstrate that the effects of incorrect, reverse feedback are surprisingly specific. (c) 2006 Elsevier Ltd. All rights reserved
Original languageEnglish
Pages (from-to)3761-3770
JournalVision Research
Issue number22
Publication statusPublished - Oct 2006


  • perceptual learning
  • decision theory
  • verniers


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