Millot Jean-Louis, Laurent Lucie, Casini Laurence
Laboratoire de Neurosciences Intégratives et Cliniques (EA 481), Université de Franche-Comté Besançon, France.
Laboratoire de Neurosciences Cognitives-UMR 7291, Université d'Aix-Marseille Marseille, France.
Front Psychol. 2016 Feb 17;7:181. doi: 10.3389/fpsyg.2016.00181. eCollection 2016.
The effect of an olfactory stimulation on the perception of time was investigated through two different experiments based on temporal bisection tasks. In experiment 1, the durations to be classified as either short or long were centered on 400 ms while in Experiment 2 there were centered on 2000 ms. The participants were different in the two experiments (36 subjects in each one). In each experiment, half of the subjects learnt the anchor durations when smelling an unpleasant odor (decanoic acid) and the other half when smelling no odor. After the learning phase, both groups were tested with and without odor. The results showed opposite effects depending on the duration range. The subjects underestimated the time in the presence of the unpleasant odor in the short duration range while they overestimated it in the long duration range. The results have been discussed in the framework of the pacemaker-counter clock model and a potential emotional effect induced by the odor on the subjective time perception has also been considered.
通过基于时间二等分任务的两个不同实验，研究了嗅觉刺激对时间感知的影响。在实验1中，被分类为短或长的持续时间以400毫秒为中心，而在实验2中以2000毫秒为中心。两个实验的参与者不同（每个实验36名受试者）。在每个实验中，一半受试者在闻一种难闻气味（癸酸）时学习锚定持续时间，另一半在无气味时学习。学习阶段后，两组都在有气味和无气味的情况下进行测试。结果表明，根据持续时间范围，会产生相反的效果。在短持续时间范围内，受试者在难闻气味存在时低估了时间，而在长持续时间范围内则高估了时间。研究结果已在起搏器-计数器时钟模型的框架内进行了讨论，并且还考虑了气味对主观时间感知产生的潜在情绪影响。
