Dormal Valérie, Heeren Alexandre, Pesenti Mauro, Maurage Pierre
Institut de Recherche en Sciences Psychologiques, Université catholique de Louvain, Place Cardinal Mercier, 10, 1348, Louvain-la-Neuve, Belgium.
Institute of Neuroscience, Université catholique de Louvain, Brussels, Belgium.
Cogn Process. 2018 Aug;19(3):399-409. doi: 10.1007/s10339-017-0852-3. Epub 2017 Dec 20.
Distortions of duration perception provoked by emotion-induced arousal changes are explained by modifications of an internal clock pace. Yet, uncertainty still abounds regarding whether changes of arousal induced by physical exercise yield such temporal distortions. Here, we report two experiments aiming to test separately the impact of, on the one hand, a physical induction of arousal and, on the other hand, a task delay on duration categorisation. In Experiment 1, participants performed a duration categorisation task before and after heart-rate manipulation (increase, decrease, or no change). Duration overestimation was observed after HR manipulation, irrespective of the condition, implying that changes of physiological arousal alone cannot explain the temporal bias observed. In Experiment 2, participants performed the duration task twice without delay or arousal manipulation, and no overestimation was observed. Together, these results suggest that the overestimation observed in the context of a delayed duration categorisation task is related to a distortion of memorised standard durations caused by time lag rather than by a physiological arousal effect.
情绪诱发的唤醒变化所引发的持续时间感知扭曲，是由内部时钟节奏的改变来解释的。然而，关于体育锻炼引起的唤醒变化是否会产生这种时间扭曲，仍存在诸多不确定性。在此，我们报告两项实验，旨在分别测试一方面由身体诱发的唤醒，另一方面任务延迟对持续时间分类的影响。在实验1中，参与者在心率操控（增加、降低或无变化）前后进行了持续时间分类任务。无论处于何种条件，在心率操控后均观察到持续时间高估现象，这意味着仅生理唤醒的变化无法解释所观察到的时间偏差。在实验2中，参与者在无延迟或唤醒操控的情况下两次执行持续时间任务，未观察到高估现象。综合来看，这些结果表明，在延迟的持续时间分类任务中观察到的高估与时间滞后导致的记忆标准持续时间的扭曲有关，而非生理唤醒效应。
