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Titolo:
Effects of similarity and history on neural mechanisms of visual selection
Autore:
Bichot, NP; Schall, JD;
Indirizzi:
Vanderbilt Univ, Dept Psychol, Vanderbilt Vis Res Ctr, Nashville, TN 37240USA Vanderbilt Univ Nashville TN USA 37240 is Res Ctr, Nashville, TN 37240USA
Titolo Testata:
NATURE NEUROSCIENCE
fascicolo: 6, volume: 2, anno: 1999,
pagine: 549 - 554
SICI:
1097-6256(199906)2:6<549:EOSAHO>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
FRONTAL EYE FIELD; SACCADE TARGET SELECTION; FEATURE CONJUNCTIONS; SPATIAL ATTENTION; GUIDED SEARCH; NEURONS; PARALLEL; MACAQUE; MOVEMENTS; CORTEX;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
36
Recensione:
Indirizzi per estratti:
Indirizzo: Schall, JD Vanderbilt Univ, Dept Psychol, Vanderbilt Vis Res Ctr, 301 Wilson Hall, Nashville, TN 37240 USA Vanderbilt Univ 301 Wilson Hall Nashville TN USA 37240 7240 USA
Citazione:
N.P. Bichot e J.D. Schall, "Effects of similarity and history on neural mechanisms of visual selection", NAT NEUROSC, 2(6), 1999, pp. 549-554

Abstract

To investigate how the brain combines knowledge with visual processing to locate eye movement targets, we trained monkeys to search for a target defined by a conjunction of color and shape. On successful trials, neurons in the frontal eye field not only discriminated the target from distracters, but also discriminated distracters that shared a target feature as well as distracters that had been the search target during the previous session. Likewise, occasional errant saccades tended to direct gaze to distracters that either resembled the current target or had been the previous target. These findings show that the frontal eye field is involved in visual and not justmotor selection and that visual selection is influenced by long-term priming. The data support the hypothesis that visual selection can be accomplished by parallel processing of objects based on their elementary features.

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Documento generato il 30/03/20 alle ore 10:18:20