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首页> 外文期刊>Biological Psychology >Cold pressor stress induces opposite effects on cardioceptive accuracy dependent on assessment paradigm
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Cold pressor stress induces opposite effects on cardioceptive accuracy dependent on assessment paradigm

机译：根据评估范式，冷压应激会导致相反的心感受准确性影响

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摘要

Interoception depends on visceral afferent neurotraffic and central control processes. Physiological arousal and organ activation provide the biochemical and mechanical basis for visceral afferent neurotraffic. Perception of visceral symptoms occurs when attention is directed toward body sensations. Clinical studies suggest that stress contributes to the generation of visceral symptoms. However, during stress exposure attention is normally shifted away from bodily signals. Therefore, the net effects of stress on interoception remain unclear. We, therefore, investigated the impact of the cold pressor test or a control intervention (each n= 21) on three established laboratory paradigms to assess cardioceptive accuracy (CA): for the Schandry-paradigm, participants were asked to count heartbeats, while during the Whitehead-tasks subjects were asked to rate whether a cardiac sensation appeared simultaneously with an auditory or visual stimulus. CA was increased by stress when attention was focused on visceral sensations (Schandry), while it decreased when attention was additionally directed toward external stimuli (visual Whitehead). Explanations for these results are offered in terms of internal versus external deployment of attention, as well as specific effects of the cold pressor on the cardiovascular system.
机译：接受感觉取决于内脏传入神经交通和中枢控制过程。生理唤醒和器官激活为内脏传入神经交通提供了生化和力学基础。当注意力转向身体感觉时，就会出现内脏症状的感知。临床研究表明，压力有助于内脏症状的产生。但是，在压力暴露期间，注意力通常会从身体信号上移开。因此，压力对受精的净作用仍不清楚。因此，我们研究了冷压测试或对照干预（每个n = 21）对三个建立的实验室范式的影响，以评估心脏感受准确性（CA）：对于Schandry范式，参与者被要求计算心跳，而在此期间要求执行Whitehead任务的受试者对心脏感觉与听觉或视觉刺激是否同时出现进行评分。当注意力集中在内脏感觉上时，压力会增加CA（Schandry），而当注意力另外转向外部刺激时，CA会降低（视觉怀特海）。对这些结果的解释是根据注意力的内部部署还是外部部署以及冷压对心血管系统的特定作用。

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