Research Group on Health Psychology, Department of Psychology, University of Leuven, Tiensestraat 102, Leuven, Belgium.
Biol Psychol. 2010 Apr;84(1):98-103. doi: 10.1016/j.biopsycho.2010.02.006. Epub 2010 Feb 19.
Human fear research has mostly applied exteroceptive stimuli to induce fear. Interoceptive sensations however can also be very threatening and play a major role in a number of anxiety disorders. In this study, we compared affective responses to inspiratory resistive loads with those to aversive pictures. During repeated administrations of two loads, a light and a moderate one, and five aversive pictures we measured electrodermal activity, startle blink responses, subjective fear and ratings on valence, arousal and dominance. Results indicate that loads evoke affective reactions comparable or stronger than those evoked by the pictures. Startle data did not follow this pattern with an absence of startle potentiation during the moderate load, suggesting that fear potentiated startle does not occur when the background aversive stimulus is of an interoceptive nature.
人类恐惧研究主要应用外感受性刺激来诱发恐惧。然而，内感受觉也可能非常具有威胁性，并在许多焦虑障碍中发挥重要作用。在这项研究中，我们比较了吸气阻力负荷和厌恶图片引起的情感反应。在重复给予两种负荷（轻负荷和中负荷）和五种厌恶图片时，我们测量了皮肤电活动、惊跳眨眼反应、主观恐惧以及效价、唤醒度和优势度的评分。结果表明，负荷引起的情感反应与图片引起的情感反应相当或更强。惊跳数据并没有遵循这种模式，中负荷时没有惊跳增强，这表明当背景厌恶刺激是内感受性质时，恐惧增强的惊跳不会发生。
