Journal
VISION RESEARCH
Volume 46, Issue 22, Pages 3761-3770Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.visres.2006.04.024
Keywords
perceptual learning; decision theory; verniers
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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.
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