Crombez G, Eccleston C, Baeyens F, Eelen P
Department of Psychology, Katholieke Universiteit te Leuven, Belgium.
Pain. 1998 Apr;75(2-3):187-98. doi: 10.1016/s0304-3959(97)00219-4.
Styles of catastrophic thinking about pain have been related to an inability to divert attention away from pain. We investigated whether pain catastrophizers displayed high attentional interference during a threatening low-intensity electrocutaneous stimulus (ES). In Experiment 1, 44 undergraduates performed a tone discrimination task whilst experiencing several times an ES on the left or right arms. Tones were also presented 250 ms and 750 ms after ES onset. Participants were threatened that a high-intensity painful stimulus would occur at one site. As predicted, pain catastrophizers displayed pronounced task interference immediately after threat stimulus onset. In Experiment 2, threat was induced in 36 undergraduates by informing them that an ES excites pain fibres. Again, catastrophizers had marked interference immediately after onset. The results are discussed in terms of how catastrophizing amplifies somatosensory information and primes fear mechanisms.
对疼痛的灾难性思维方式与无法将注意力从疼痛上转移开有关。我们研究了在受到威胁的低强度皮肤电刺激（ES）期间，疼痛灾难化者是否表现出高度的注意力干扰。在实验1中，44名本科生在左臂或右臂多次接受ES刺激时执行音调辨别任务。在ES开始后250毫秒和750毫秒也会出现音调。参与者受到威胁，称在一个部位会出现高强度疼痛刺激。正如预期的那样，疼痛灾难化者在威胁刺激开始后立即表现出明显的任务干扰。在实验2中，通过告知36名本科生ES会刺激疼痛纤维来诱发威胁。同样，灾难化者在开始后立即有明显的干扰。我们从灾难化如何放大体感信息和启动恐惧机制的角度讨论了这些结果。
