Craig Kenneth D, Hyde Susan A, Patrick Christopher J
Department of Psychology, University of British Columbia, Vancouver, BC V6T 1Y7 Canada Cape Breton Hospital, Cape BretonCanada Florida State University, Tallahassee, FLU.S.A.
Pain. 1991 Aug;46(2):161-171. doi: 10.1016/0304-3959(91)90071-5.
Facial activity was examined as 60 female and 60 male chronic low back pain patients responded to a painful range of motion exercise during a scheduled physical examination. Subsequently, they were asked to fake the facial response to the movement inducing the most pain or to attempt to suppress evidence that they were experiencing pain when this same movement was again repeated. Facial behavior was measured using the Facial Action Coding System. Self-reports of pain also were provided. The genuine expression was consistent with that observed in previous research, but minor differences indicated that the facial display of pain reflects differences between sources of pain, social context in which pain is induced and individual differences among patients. Considerable voluntary control over the facial expression of pain was observed, although the faked expression was more an intensified caricature of the genuine expression, and an attempt to suppress the facial grimace of pain was not entirely successful as residual facial activity persisted. Self-reports were only moderately correlated with facial behavior.
在一次定期体检中，当60名女性和60名男性慢性腰痛患者对一系列疼痛的运动范围测试做出反应时，研究人员对他们的面部活动进行了检查。随后，要求他们假装对引起最大疼痛的动作做出面部反应，或者当再次重复相同动作时，试图抑制他们正在经历疼痛的证据。使用面部动作编码系统对面部行为进行测量。同时也提供了疼痛的自我报告。真实表情与先前研究中观察到的一致，但细微差异表明，疼痛的面部表现反映了疼痛来源、诱发疼痛的社会背景以及患者个体差异之间的不同。尽管观察到对疼痛面部表情有相当程度的自主控制，但假装的表情更多是真实表情的夸张漫画，而且试图抑制疼痛的面部鬼脸并不完全成功，因为仍有残余的面部活动。自我报告与面部行为的相关性仅为中等程度。
