PMID: 9525037Apr 3, 1998Paper

Modeling perceptual learning: difficulties and how they can be overcome

Biological cybernetics
Michael H Herzog, Manfred Fahle

Abstract

We investigated the roles of feedback and attention in training a vernier discrimination task as an example of perceptual learning. Human learning even of simple stimuli, such as verniers, relies on more complex mechanisms than previously expected--ruling out simple neural network models. These findings are not just an empirical oddity but are evidence that present models fail to reflect some important characteristics of the learning process. We will list some of the problems of neural networks and develop a new model that solves them by incorporating top-down mechanisms. Contrary to neural networks, in our model learning is not driven by the set of stimuli only. Internal estimations of performance and knowledge about the task are also incorporated. Our model implies that under certain conditions the detectability of only some of the stimuli is enhanced while the overall improvement of performance is attributed to a change of decision criteria. An experiment confirms this prediction.

Citations

Feb 9, 2013·Experimental Brain Research·Matthias HartmannFred W Mast
Jun 16, 2005·Trends in Cognitive Sciences·Aaron Seitz, Takeo Watanabe
Apr 28, 2001·International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology·W SkrandiesM Fahle
Oct 16, 2004·Nature·Misha Tsodyks, Charles Gilbert
Dec 3, 2009·Nature Reviews. Neuroscience·Yuka SasakiTakeo Watanabe
Dec 6, 2001·Journal of Motor Behavior·J B WagmanM T Turvey
Jun 7, 2003·Network : Computation in Neural Systems·L ZhaopingPeter Dayan
Nov 4, 2008·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Manfred Fahle
Sep 23, 2006·Journal of Cognitive Neuroscience·Ahmed A KarimBen Godde
Aug 25, 2007·PLoS Computational Biology·Roland SchäferWalter Senn
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Nov 26, 2008·PloS One·Aaron R Seitz, Takeo Watanabe
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Mar 23, 2010·Learning & Perception·Barbara Anne Dosher, Zhong-Lin Lu
Dec 8, 2009·Current Biology : CB·Elisa M TartagliaMichael H Herzog
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Oct 28, 2009·Anesthesiology·Kristoffer C AbergMichael H Herzog

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