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Titolo:
Orientation preference patterns in mammalian visual cortex: A wire length minimization approach
Autore:
Koulakov, AA; Chklovskii, DB;
Indirizzi:
Cold Spring Harbor Lab, Cold Spring Harbor, NY 11724 USA Cold Spring Harbor Lab Cold Spring Harbor NY USA 11724 rbor, NY 11724 USA Salk Inst, La Jolla, CA 92037 USA Salk Inst La Jolla CA USA 92037Salk Inst, La Jolla, CA 92037 USA
Titolo Testata:
NEURON
fascicolo: 2, volume: 29, anno: 2001,
pagine: 519 - 527
SICI:
0896-6273(200102)29:2<519:OPPIMV>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
OCULAR-DOMINANCE COLUMNS; MONKEY STRIATE CORTEX; RECEPTIVE-FIELD; FUNCTIONAL ARCHITECTURE; CORTICAL MAPS; CAT AREA-17; OWL MONKEY; ORGANIZATION; TOPOGRAPHY; NEURONS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
55
Recensione:
Indirizzi per estratti:
Indirizzo: Chklovskii, DB Cold Spring Harbor Lab, 1 Bungtown Rd, Cold Spring Harbor, NY 11724 USA Cold Spring Harbor Lab 1 Bungtown Rd Cold Spring Harbor NY USA11724
Citazione:
A.A. Koulakov e D.B. Chklovskii, "Orientation preference patterns in mammalian visual cortex: A wire length minimization approach", NEURON, 29(2), 2001, pp. 519-527

Abstract

In the visual cortex of many mammals, orientation preference changes smoothly along the cortical surface, with the exception of singularities such aspinwheels and fractures. The reason for the existence of these singularities has remained elusive, suggesting that they are developmental artifacts. We show that singularities reduce the length of intracortical neuronal connections for some connection rules. Therefore, pinwheels and fractures couldbe evolutionary adaptations keeping cortical volume to a minimum. Wire length minimization approach suggests that interspecies differences in orientation preference maps reflect differences in intracortical neuronal circuits, thus leading to experimentally testable predictions. We discuss application of our model to direction preference maps.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/01/20 alle ore 09:17:19