Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
The sensory nature of mnemonic representation in the primate prefrontal cortex
Autore:
Constantinidis, C; Franowicz, MN; Goldman-Rakic, PS;
Indirizzi:
Yale Univ, Sch Med, Neurobiol Sect, New Haven, CT 06510 USA Yale Univ NewHaven CT USA 06510 Neurobiol Sect, New Haven, CT 06510 USA
Titolo Testata:
NATURE NEUROSCIENCE
fascicolo: 3, volume: 4, anno: 2001,
pagine: 311 - 316
SICI:
1097-6256(200103)4:3<311:TSNOMR>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
POSTERIOR PARIETAL CORTEX; SPATIAL WORKING-MEMORY; NEURONAL-ACTIVITY; FRONTAL-CORTEX; PERCEPTUAL DECISION; NEURAL ACTIVITY; SINGLE NEURONS; EYE-MOVEMENTS; UNIT-ACTIVITY; TASK;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
48
Recensione:
Indirizzi per estratti:
Indirizzo: Goldman-Rakic, PS Yale Univ, Sch Med, Neurobiol Sect, 333 Cedar St, New Haven, CT 06510 USA Yale Univ 333 Cedar St New Haven CT USA 06510 06510 USA
Citazione:
C. Constantinidis et al., "The sensory nature of mnemonic representation in the primate prefrontal cortex", NAT NEUROSC, 4(3), 2001, pp. 311-316

Abstract

A long-standing issue concerning the function of the primate dorsolateral prefrontal cortex is whether the activity of prefrontal neurons reflects the perceived sensory attributes of a remembered stimulus, or the decision toexecute a motor response. To distinguish between these possibilities, we recorded neuronal activity from monkeys trained to make a saccade toward thebrighter of two memoranda, under conditions of varied luminance. Our results indicated that during the delay period when sensory information was no longer available, neuronal discharge was modulated by the luminance of the stimulus appearing in the receptive field, and was directly correlated with psychophysical performance in the task. The findings suggest that although prefrontal cortex codes for a diversity of representations, including the decision for an impending response, a population of neurons maintains the dimensional attributes of remembered stimuli throughout the delay period, which allows for flexibility in the outcome of a mnemonic process.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/01/20 alle ore 06:23:44