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Titolo:
Visual attention in the rat: A role for the prelimbic cortex and thalamic nuclei?
Autore:
Chudasama, Y; Muir, JL;
Indirizzi:
Cariff Univ, Sch Psychol, Cardiff CF10 3YQ, S Glam, Wales Cariff Univ Cardiff S Glam Wales CF10 3YQ Cardiff CF10 3YQ, S Glam, Wales
Titolo Testata:
BEHAVIORAL NEUROSCIENCE
fascicolo: 2, volume: 115, anno: 2001,
pagine: 417 - 428
SICI:
0735-7044(200104)115:2<417:VAITRA>2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Soggetto:
MEDIAL PREFRONTAL CORTEX; BEHAVIORAL VIGILANCE; SUSTAINED ATTENTION; BASAL FOREBRAIN; TASK; LESIONS; NEURONS; MEMORY; PERFORMANCE; DYSFUNCTION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
43
Recensione:
Indirizzi per estratti:
Indirizzo: Muir, JL Cariff Univ, Sch Psychol, POB 901, Cardiff CF10 3YQ, S Glam, Wales Cariff Univ POB 901 Cardiff S Glam Wales CF10 3YQ , S Glam, Wales
Citazione:
Y. Chudasama e J.L. Muir, "Visual attention in the rat: A role for the prelimbic cortex and thalamic nuclei?", BEHAV NEURO, 115(2), 2001, pp. 417-428

Abstract

The behavioral effects of lesions of the prelimbic cortex (PL), mediodorsal nucleus of the thalamus (MD), and anterior thalamic nuclei (ANT) were investigated in 2 attentional tasks in rats: the 5-choice serial reaction timetask and a vigilance task. Although there was no lesion effect on accuracyin the 5-choice task, PL lesions enhanced perseverative responding during baseline performance and when stimulus duration was reduced. In contrast, MD lesions increased premature responding during baseline performance and when the intertrial interval was varied unpredictably. In the vigilance paradigm, PL lesions also impaired rats' ability to detect the light signal at baseline and at the reduced stimulus duration. ANT lesions did not substantially disrupt performance. The results suggest that different aspects of attention may be attributable to the PL and the MD and that the mechanisms underlying inhibitory control of behavior may be attributable to functionally different thalamocortical circuits.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 22/01/20 alle ore 21:47:11