Perceptual learning with perceptions |
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Authors: | Anja Stemme Gustavo Deco Elmar W Lang |
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Institution: | (1) Computational Intelligence and Machine Learning - CIML, Institute for Biophysics, University of Regensburg, 93040 Regensburg, Germany;(2) Theoretical and Computational Neuroscience, Unit for Brain and Cognition, Universitat Pompeu Fabra, Roc Boronat, 138, 08018 Barcelona, Spain |
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Abstract: | In this work we present an approach to understand neuronal mechanisms underlying perceptual learning. Experimental results
achieved with stimulus patterns of coherently moving dots are considered to build a simple neuronal model. The design of the
model is made transparent and underlying behavioral assumptions made explicit. The key aspect of the suggested neuronal model
is the learning algorithm used: We evaluated an implementation of Hebbian learning and are thus able to provide a straight-forward
model capable to explain the neuronal dynamics underlying perceptual learning. Moreover, the simulation results suggest a
very simple explanation for the aspect of “sub-threshold” learning (Watanabe et al. in Nature 413:844–884, 2001) as well as the relearning of motion discrimination after damage to primary visual cortex as recently reported (Huxlin et al.
in J Neurosci 29:3981–3991, 2009) and at least indicate that perceptual learning might only occur when accompanied by conscious percepts. |
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Keywords: | Perceptual learning Hebb Neurodynamical model Perception |
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