creators_name: Hillenbrand, Ulrich
creators_name: van Hemmen, J. Leo
type: journalp
datestamp: 2002-08-09
lastmod: 2011-03-11 08:54:59
metadata_visibility: show
title: Does Corticothalamic Feedback Control Cortical Velocity Tuning?
ispublished: pub
subjects: neuro-mod
subjects: comp-neuro-sci
subjects: bio-theory
full_text_status: public
keywords: corticothalamic feedback, velocity tuning, visual motion, lateral geniculate nucleus, visual cortex
abstract: The thalamus is the major gate to the cortex and its contribution to cortical receptive field properties is well established. Cortical feedback to the thalamus is, in turn, the anatomically dominant input to relay cells, yet its influence on thalamic processing has been difficult to interpret. For an understanding of complex sensory processing, detailed concepts of the corticothalamic interplay need yet to be established. To study corticogeniculate processing in a model, we draw on various physiological and anatomical data concerning the intrinsic dynamics of geniculate relay neurons, the cortical influence on relay modes, lagged and nonlagged neurons, and the structure of visual cortical receptive fields. In extensive computer simulations we elaborate the novel hypothesis that the visual cortex controls via feedback the temporal response properties of geniculate relay cells in a way that alters the tuning of cortical cells for speed.
date: 2001
date_type: published
publication: Neural Computation
volume: 13
pagerange: 327-355
refereed: TRUE
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citation:   Hillenbrand, Dr. Ulrich and van Hemmen, Prof. Dr. J. Leo  (2001) Does Corticothalamic Feedback Control Cortical Velocity Tuning?  [Journal (Paginated)]     
document_url: http://cogprints.org/2394/1/Hillenbrand_vanHemmen_01.pdf