Cubelli R, Caselli M, Neri M
Cortex. 1984 Sep;20(3):369-75. doi: 10.1016/s0010-9452(84)80005-2.
The purpose of the present experiment was to study whether a unilateral cerebral lesion modifies pain parameters with respect to a control group. Electric stimuli were applied to brain damaged patients on the forearm ipsilateral to the lesion, and to both forearms of a control group. No significant difference was found between experimental groups for either pain or tolerance thresholds, whereas pain endurance--the difference between pain threshold and pain tolerance threshold--was significantly greater in right brain damaged patients, compared to both the control group and the left brain damaged group. In the latter group, pain endurance was not significantly different from controls, although there was a tendency towards its decrease. Result are discussed in relation to the problem of the hemispheric specialization for emotional processes.
本实验的目的是研究单侧脑损伤相对于对照组是否会改变疼痛参数。对脑损伤患者病变同侧的前臂施加电刺激，并对对照组的双侧前臂施加电刺激。实验组在疼痛阈值或耐受阈值方面均未发现显著差异，然而，与对照组和左脑损伤组相比，右脑损伤患者的疼痛耐力（疼痛阈值与疼痛耐受阈值之间的差异）显著更高。在后一组中，尽管有下降趋势，但疼痛耐力与对照组并无显著差异。结合情绪过程的半球特化问题对结果进行了讨论。
