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Titolo:
Tuning for the orientation of spatial attention in dorsal premotor cortex
Autore:
Lebedev, MA; Wise, SP;
Indirizzi:
NIMH, Lab Syst Neurosci, Bethesda, MD 20892 USA NIMH Bethesda MD USA 20892 IMH, Lab Syst Neurosci, Bethesda, MD 20892 USA
Titolo Testata:
EUROPEAN JOURNAL OF NEUROSCIENCE
fascicolo: 5, volume: 13, anno: 2001,
pagine: 1002 - 1008
SICI:
0953-816X(200103)13:5<1002:TFTOOS>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
PRIMARY MOTOR CORTEX; PREPARATORY NEURONAL-ACTIVITY; MONKEY PRIMARY MOTOR; REACHING MOVEMENTS; MACAQUE MONKEY; ARM MOVEMENTS; PRIOR INFORMATION; VISUAL RESPONSES; FRONTAL-CORTEX; CELL-ACTIVITY;
Keywords:
behavioral neurophysiology; eye movement; Macaca mulatta; reaching movement; saccade direction; frontal cortex;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
38
Recensione:
Indirizzi per estratti:
Indirizzo: Lebedev, MA NIMH, Lab Syst Neurosci, 49 Convent Dr,Bldg 49,Room B1EE17,MSC4401, Bethesda, MD 20892 USA NIMH 49 Convent Dr,Bldg 49,Room B1EE17,MSC 4401 Bethesda MD USA 20892
Citazione:
M.A. Lebedev e S.P. Wise, "Tuning for the orientation of spatial attention in dorsal premotor cortex", EUR J NEURO, 13(5), 2001, pp. 1002-1008

Abstract

We tested whether neuronal activity in the dorsal premotor cortex (PMd) reflected the orientation of selective spatial attention, as opposed to the target of a reaching movement, eye position and saccade direction. These four spatial variables were dissociated in two tasks, which both required thata monkey attend to a robot's location in order to know when to make a movement. However, the target of the reaching movement varied; it was the robot's location in one task, but a different location in the other task. Eye position was recorded, but not explicitly controlled. Of 199 PMd neurons sampled, 19% had activity related to eye position, and an overlapping 11% were related to saccade direction (totaling 24% of the PMd sample). Of the 152 PMd neurons that lacked oculomotor relationships, approximate to 20% reflected the orientation of selective spatial attention. Attentional tuning may account, at least in part, for gaze-independent receptive fields and visuospatial, target or goal relationships in tasks involving stimulus-response incompatibility.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 31/03/20 alle ore 15:24:46