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Titolo:
Touch and go: Decision-making mechanisms in somatosensation
Autore:
Romo, R;
Indirizzi:
Natl Autonomous Univ Mexico, Inst Fisiol Celular, Mexico City 04510, DF, Mexico Natl Autonomous Univ Mexico Mexico City DF Mexico 04510 04510, DF, Mexico Salk Inst Biol Studies, Howard Hughes Med Inst, Computat Neurobiol Lab, LaJolla, CA 92037 USA Salk Inst Biol Studies La Jolla CA USA 92037 l Lab, LaJolla, CA 92037 USA
Titolo Testata:
ANNUAL REVIEW OF NEUROSCIENCE
, volume: 24, anno: 2001,
pagine: 107 - 137
SICI:
0147-006X(2001)24:<107:TAGDMI>2.0.ZU;2-H
Fonte:
ISI
Lingua:
ENG
Soggetto:
SOMATIC SENSORY CORTEX; PRIMARY MOTOR CORTEX; DORSOLATERAL PREFRONTAL CORTEX; CONTRASTING NEURONAL-ACTIVITY; FREE ARM MOVEMENTS; FRONTAL-CORTEX; MONKEY PRIMARY; BASAL GANGLIA; AREA 3B; PSYCHOPHYSICAL MEASUREMENTS;
Keywords:
somatosensory cortex; discrimination; categorization; working memory; cortical microstimulation; attention;
Tipo documento:
Review
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
130
Recensione:
Indirizzi per estratti:
Indirizzo: Romo, R Natl Autonomous Univ Mexico, Inst Fisiol Celular, Mexico City 04510, DF, Mexico Natl Autonomous Univ Mexico Mexico City DF Mexico 04510 F, Mexico
Citazione:
R. Romo, "Touch and go: Decision-making mechanisms in somatosensation", ANN R NEUR, 24, 2001, pp. 107-137

Abstract

A complex sequence of neural events unfolds between sensory receptor activation and motor activity. To understand the underlying decision-making mechanisms linking somatic sensation and action, we ask what components of the neural activity evoked by a stimulus are directly related to psychophysicalperformance, and how are they related. We find that single-neuron responses in primary and secondary somatosensory cortices account for the observed performance of monkeys in vibrotactile discrimination tasks, and that neuronal and behavioral responses covary in single trials. This sensory activity, which provides input to memory and decision-making mechanisms, is modulated by attention and behavioral context, and microstimulation experiments indicate that it may trigger normal perceptual experiences. Responses recorded in motor areas seem to reflect the output of decision-making operations, which suggests that the ability to make decisions occurs at the sensory-motor interface.

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Documento generato il 03/04/20 alle ore 11:04:03