Parris Benjamin A, Dienes Zoltan, Bate Sarah, Gothard Stace
Psychology Research Centre, School of Design, Engineering and Computing, University of Bournemouth, UK, BH12 5BB, and School of Psychology and Sackler Centre for Consciousness Science, University of Sussex, UK, BN1 9QH.
Soc Cogn Affect Neurosci. 2014 Jul;9(7):895-9. doi: 10.1093/scan/nst063. Epub 2013 Apr 24.
The ability to enhance sensitivity to relevant (post)hypnotic suggestions has implications for creating clinically informed analogues of psychological and neuropsychological conditions and for the use of hypnotic interventions in psychological and medical conditions. The aim of this study was to test the effect of oxytocin inhalation on a post-hypnotic suggestion that previously has been shown to improve the selectivity of attention in the Stroop task. In a double-blind placebo-controlled between-subjects study, medium hypnotizable individuals performed the Stroop task under normal conditions and when they had been given a post-hypnotic suggestion that they would perceive words as meaningless symbols. In line with previous research, Stroop interference was substantially reduced by the suggestion in the placebo condition. However, contrary to expectations, oxytocin impeded the effect of the word blindness suggestion on performance. The results are explained in terms of the requirement for the re-implementation of the word blindness suggestion on a trial-by-trial basis and the need to sustain activation of the suggestion between trials. The findings contrast with a recent study showing a beneficial effect of oxytocin on sensitivity to (post)hypnotic suggestions but are consistent with findings showing a detrimental effect of oxytocin on memory processes.
增强对相关（催眠后）暗示的敏感性的能力，对于创建心理和神经心理状况的临床知情模拟物以及在心理和医疗状况中使用催眠干预具有重要意义。本研究的目的是测试催产素吸入对一种催眠后暗示的影响，该暗示先前已被证明可提高斯特鲁普任务中的注意力选择性。在一项双盲安慰剂对照的组间研究中，中度可催眠个体在正常条件下以及在接受他们会将单词视为无意义符号的催眠后暗示时执行斯特鲁普任务。与先前的研究一致，在安慰剂条件下，该暗示显著降低了斯特鲁普干扰。然而，与预期相反，催产素阻碍了单词失明暗示对表现的影响。根据逐次试验重新实施单词失明暗示的要求以及在试验之间维持暗示激活的需要来解释这些结果。这些发现与最近一项显示催产素对（催眠后）暗示敏感性有有益影响的研究形成对比，但与显示催产素对记忆过程有不利影响的研究结果一致。
