RESPONSES OF NEURONS IN THE RAT VENTROLATERAL ORBITAL CORTEX TO PHASIC AND TONIC NOCICEPTIVE STIMULATION

被引:46
作者
BACKONJA, M
MILETIC, V
机构
[1] UNIV WISCONSIN, SCH VET MED, DEPT COMPARAT BIOSCI, 2015 LINDEN DR W, MADISON, WI 53706 USA
[2] UNIV WISCONSIN, DEPT NEUROL, MADISON, WI 53706 USA
[3] WS MIDDLETON VET ADM MED CTR, DEPT NEUROL, MADISON, WI 53706 USA
关键词
FRONTAL CORTEX; MEDIAL THALAMUS; ANALGESIA; PAIN; COLD PRESSOR TEST;
D O I
10.1016/0006-8993(91)90160-W
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Responses of ventrolateral orbital cortex (VLO) neurons to innocuous touch and pressure, and noxious pinch and cold were examined by extracellular recordings. Eight neurons increased their firing rate in a graded fashion to all stimuli applied, 4 units decreased their discharges, and 6 neurons remained unaffected. All responsive units displayed the greatest change in firing rate during noxious cold, and all exhibited whole-body receptive fields. These data further implicate the VLO in nociception.
引用
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页码:353 / 355
页数:3
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