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Titolo:
Learning to see: experience and attention in primary visual cortex
Autore:
Crist, RE; Li, W; Gilbert, CD;
Indirizzi:
Rockefeller Univ, New York, NY 10021 USA Rockefeller Univ New York NY USA10021 eller Univ, New York, NY 10021 USA
Titolo Testata:
NATURE NEUROSCIENCE
fascicolo: 5, volume: 4, anno: 2001,
pagine: 519 - 525
SICI:
1097-6256(200105)4:5<519:LTSEAA>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Soggetto:
STRIATE CORTEX; HORIZONTAL CONNECTIONS; MACAQUE MONKEY; ALERT MONKEYS; FUNCTIONAL ARCHITECTURE; VERNIER ACUITY; OWL MONKEYS; ORIENTATION; REPRESENTATION; DISCRIMINATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
36
Recensione:
Indirizzi per estratti:
Indirizzo: Gilbert, CD Rockefeller Univ, 1230 York Ave, New York, NY 10021 USA Rockefeller Univ 1230 York Ave New York NY USA 10021 10021 USA
Citazione:
R.E. Crist et al., "Learning to see: experience and attention in primary visual cortex", NAT NEUROSC, 4(5), 2001, pp. 519-525

Abstract

The response properties of neurons in primary sensory cortices remain malleable throughout life. The existence of such plasticity, and the characteristics of a form of implicit learning known as perceptual learning, suggest that changes in primary sensory cortex may mediate learning. We explored whether modification of the functional properties of primary visual cortex (V1) accompanies perceptual learning. Basic receptive field properties, such as location, size and orientation selectivity, were unaffected by perceptual training, and visual topography (as measured by magnification factor) wasindistinguishable between trained and untrained animals. On the other hand, the influence of contextual stimuli placed outside the receptive field showed a change consistent with the trained discrimination. Furthermore, thisproperty showed task dependence, only being manifest when the animal was performing the trained discrimination.

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Documento generato il 18/01/20 alle ore 01:51:40