Technical University of Dresden, Germany.
University of North Texas, United States.
Biol Psychol. 2020 Apr;152:107867. doi: 10.1016/j.biopsycho.2020.107867. Epub 2020 Feb 19.
Studies have documented the predictive utility of an integrative analysis of ability influence on effort and cardiovascular response. An assumption is that influence is driven by perception. We evaluated this altering ability perception through negative (nocebo) or positive (placebo) suggestion. Participants ingested a pill having been told it would reduce or enhance cognitive clarity. They then were presented a math task with the chance to earn an incentive if they met a low- or high performance standard. Analyses indicated higher reports of clarity during work among participants provided positive clarity instructions and a crossover clarity instruction x performance standard interaction for heart rate response. Responses were stronger for positive instruction participants when the standard was high, but stronger for negative instruction participants when it was low. Findings provide distinctive support for the assumption and suggest a fresh strategy for evaluating the impact of nocebo/placebo and other interventions on subjective experience.
研究记录了能力对努力和心血管反应的综合分析的预测效用。一种假设是，这种影响是由感知驱动的。我们通过负面（反安慰剂）或正面（安慰剂）暗示来评估这种能力感知的变化。参与者服用了一种药丸，并被告知它可以提高或降低认知清晰度。然后，他们完成了一项数学任务，如果达到低或高标准，就有机会获得奖励。分析表明，在提供积极清晰指令的参与者中，在工作期间报告的清晰度更高，并且心率反应存在清晰指令 x 绩效标准的交叉作用。当标准较高时，积极指令的参与者反应更强，但当标准较低时，消极指令的参与者反应更强。这些发现为这一假设提供了独特的支持，并为评估反安慰剂/安慰剂和其他干预措施对主观体验的影响提供了一种新策略。
