TY  - GEN
ID  - cogprints2406
UR  - http://cogprints.org/2406/
A1  - Hillenbrand, Dr. Ulrich
A1  - van Hemmen, Prof. Dr. J. Leo
Y1  - 2000///
N2  - The thalamus is the major gate to the cortex and its control over cortical responses 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. Drawing on various physiological and anatomical data, we elaborate the novel hypothesis that the visual cortex controls the spatiotemporal structure of cortical receptive fields via feedback to the lateral geniculate nucleus. Furthermore, we present and analyze a model of corticogeniculate loops that implements this control, and exhibit its ability of object segmentation by statistical motion analysis in the visual field.
KW  - lateral geniculate nucleus
KW  -  corticothalamic feedback
KW  -  control loop
KW  -  object segmentation
KW  -  motion analysis
TI  - Spatiotemporal adaptation through corticothalamic loops: A hypothesis
SP  - 107
AV  - public
EP  - 118
ER  -

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