Ex) Article Title, Author, Keywords
J. Korean Phy. Soc. 2009; 55(6): 2532-2536
Published online December 15, 2009 https://doi.org/10.3938/jkps.55.2532
Copyright © The Korean Physical Society.
MyoungWon Cho, M.Y. Choi
The visual cortex contains overlaid feature maps for orientation preference,ocular dominance, and direction preference, which are shown by experiment to becorrelated with rather than independent of each other.While the characteristics of the ocular dominance map in relation to theorientation preference map are systematically understood by analogy with otherphysical systems having the same topological characteristics, the originalarrangement of direction preference offers a challenge for theories.Here, by extracting features from spatiotemporal input statistics throughspike-timing dependent plasticity, we show how a neuron in the visual cortexacquires direction selectivity, such that the direction tends to be orthogonalto the orientation preference.Based on these results, we propose an abstract model for the joint mapformation and classify what kind of direction preference map can develop inrelation to orientation and ocular dominance maps.
Keywords: Hebbian learning, STDP, Pattern formation, Magnetic anisotropy
Copyright © 2016 The Korean Physical Society. All Rights Reserved.
The Korean Physical Society, 22, Teheran-ro 7-gil, Gangnam-gu, Seoul 06130, Korea
Tel:++82-2-556-4737 (EXT. #2)
Publication) Tel: +82-2-556-4737 (EXT. #3),
License No: 220-82-01588 President: Bumhoon Lee