Honoré Jacques, Hénon Hilde, Naveteur Janick
Laboratoire de Neurosciences du Comportement, Universiti de Lille I, Villeneuve d Ascq France.
Pain. 1995 Nov;63(2):213-218. doi: 10.1016/0304-3959(95)00050-3.
The effect of eye orientation on pain was investigated as a function of the stimulus intensity and the subjects' anxiety. Right-handed female subjects received sequences of electric shocks gradually increasing in intensity. Unpleasantness threshold, pain threshold, tolerance threshold and pain range were obtained when eyes were directed towards a target LED situated in the direction of, or away from, the source of stimulation, in the ipsi- or contralateral hemispace. Directing the eyes ipsilaterally to the stimulated hand yielded a lower unpleasantness threshold when the right hand was stimulated. No significant effect was observed in high trait anxiety subjects. These results are interpreted in terms of hemispatial attention bias. Moreover, an ipsilateral eye orientation increased pain range but this effect reversed in the highest state anxiety subjects. These latter observations could reflect the interacting influences of both spatial attention and state anxiety in selecting the processing mode of painful stimuli.
研究了眼睛朝向对疼痛的影响，并将其作为刺激强度和受试者焦虑程度的函数。右利手女性受试者接受强度逐渐增加的电击序列。当眼睛看向位于刺激源同侧或对侧半空间中朝向或远离刺激源方向的目标发光二极管时，获取不愉快阈值、疼痛阈值、耐受阈值和疼痛范围。当右手受到刺激时，将眼睛同侧转向受刺激的手会产生较低的不愉快阈值。在高特质焦虑受试者中未观察到显著影响。这些结果根据半空间注意偏向进行解释。此外，同侧眼睛朝向增加了疼痛范围，但在最高状态焦虑的受试者中这种效应发生了逆转。后一种观察结果可能反映了空间注意和状态焦虑在选择疼痛刺激处理模式中的相互作用影响。
