dorsal/arxiv
View SchemaSpatiotemporal adaptation through corticothalamic loops: A hypothesis
| Authors | Ulrich Hillenbrand, J. Leo van Hemmen |
|---|---|
| Categories | |
| ArXiv ID | physics/0208050 |
| URL | https://arxiv.org/abs/physics/0208050 |
| Journal | Visual Neuroscience 17 (2000), pp. 107-118 |
Abstract
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.
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"abstract": "The thalamus is the major gate to the cortex and its control over cortical\nresponses is well established. Cortical feedback to the thalamus is, in turn,\nthe anatomically dominant input to relay cells, yet its influence on thalamic\nprocessing has been difficult to interpret. For an understanding of complex\nsensory processing, detailed concepts of the corticothalamic interplay need yet\nto be established. Drawing on various physiological and anatomical data, we\nelaborate the novel hypothesis that the visual cortex controls the\nspatiotemporal structure of cortical receptive fields via feedback to the\nlateral geniculate nucleus. Furthermore, we present and analyze a model of\ncorticogeniculate loops that implements this control, and exhibit its ability\nof object segmentation by statistical motion analysis in the visual field.",
"arxiv_id": "physics/0208050",
"authors": [
"Ulrich Hillenbrand",
"J. Leo van Hemmen"
],
"categories": [
"physics.bio-ph",
"q-bio.NC"
],
"journal_ref": "Visual Neuroscience 17 (2000), pp. 107-118",
"title": "Spatiotemporal adaptation through corticothalamic loops: A hypothesis",
"url": "https://arxiv.org/abs/physics/0208050"
},
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