dorsal/arxiv
View SchemaDoes Corticothalamic Feedback Control Cortical Velocity Tuning?
| Authors | Ulrich Hillenbrand, J. Leo van Hemmen |
|---|---|
| Categories | |
| ArXiv ID | physics/0208040 |
| URL | https://arxiv.org/abs/physics/0208040 |
| Journal | Neural Computation 13 (2001), pp. 327-355 |
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.
{
"annotation_id": "5df86d2d-2c1a-422f-9329-60e17bd1eb25",
"date_created": "2026-03-02T18:00:39.173000Z",
"date_modified": "2026-03-02T18:00:39.173000Z",
"file_hash": "ef511643e345136fbcb0037251e82b6b429e6bcc8d949c3a1bfea5816978041b",
"private": false,
"record": {
"abstract": "The thalamus is the major gate to the cortex and its contribution to cortical\nreceptive field properties is well established. Cortical feedback to the\nthalamus is, in turn, the anatomically dominant input to relay cells, yet its\ninfluence on thalamic processing has been difficult to interpret. For an\nunderstanding of complex sensory processing, detailed concepts of the\ncorticothalamic interplay need yet to be established. To study\ncorticogeniculate processing in a model, we draw on various physiological and\nanatomical data concerning the intrinsic dynamics of geniculate relay neurons,\nthe cortical influence on relay modes, lagged and nonlagged neurons, and the\nstructure of visual cortical receptive fields. In extensive computer\nsimulations we elaborate the novel hypothesis that the visual cortex controls\nvia feedback the temporal response properties of geniculate relay cells in a\nway that alters the tuning of cortical cells for speed.",
"arxiv_id": "physics/0208040",
"authors": [
"Ulrich Hillenbrand",
"J. Leo van Hemmen"
],
"categories": [
"physics.bio-ph",
"q-bio.NC"
],
"journal_ref": "Neural Computation 13 (2001), pp. 327-355",
"title": "Does Corticothalamic Feedback Control Cortical Velocity Tuning?",
"url": "https://arxiv.org/abs/physics/0208040"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "66225a87-0eb9-4ec6-b8a3-9c747dabc325",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}