ENCODING OF GRADED NOXIOUS SKIN HEATING BY NEURONS IN POSTERIOR THALAMUS AND ADJACENT AREAS IN THE CAT

被引:23
作者
BRINKHUS, HB [1 ]
CARSTENS, E [1 ]
ZIMMERMANN, M [1 ]
机构
[1] UNIV HEIDELBERG, INST PHYSIOL 2, D-6900 HEIDELBERG 1, FED REP GER
关键词
D O I
10.1016/0304-3940(79)91526-X
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Impulse discharges were recorded from 62 single units in the posterior thalamic and adjacent nuclei of the cat which received input from hindlimb cutaneous nerves. Noxious radiant heating (e.g., 50°C for 10 sec) of the hindpaw excited 32% of the units. The magnitude of heat-evoked unit discharges was graded with the intensity of noxious heating. Such units had large cutaneous receptive fields spanning 2 or more limbs, and responded to strong mechanical stimuli (pressure, pinch). About half of the units responded also to light stimuli such as hair bending or touch. © 1979.
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页码:37 / 42
页数:6
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