Journal
NEUROCOMPUTING
Volume 65, Issue -, Pages 85-91Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.neucom.2004.10.059
Keywords
spatial frequency selectivity; feedforward model; simple cells; spatial frequency map
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A purely feedforward model has been shown to produce realistic simple cell receptive fields (RFs) that show smooth transitions between subregions and fade off gradually at the boundaries (J. Comp. Neurosci. 14 (2003) 211). Here, we show that the modeled cells also capture a wide range of spatial frequency properties of cortical cells. The shape, size and number of the subregions in the RF is found to be an important parameter in determining the frequency selectivity of the cell. The spatial frequency maps obtained through the model show a continuous distribution of spatial frequency preference across the modeled cortex and pinwheels largely co-localize with the extremes of the spatial frequency domains. (c) 2004 Elsevier B.V. All rights reserved.
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