When people say that time is passing faster or slower, they are referring to the clock time. What exactly is the role of this reference to clock time in the awareness of the passage of time? Three experiments were conducted to examine this question. In Experiment 1, participants performed an easy and a difficult task in a condition with or without an external clock. In Experiment 2, the external clock was introduced after several trials of the easy task performed by the same participants. In Experiment 3, the speed of the clock hands was manipulated. Eye movements towards the clock were recorded by an eye tracker. The results showed that time was judged to pass faster with the external clock, thus reducing the distortion of the sense of time. Indeed, participants noticed that time passed faster than they initially thought. However, our results also showed that this was an occasional and short-lived adjustment of subjective time to objective time, with a greater acceleration in the presence of the fast clock. Indeed, the clock quickly lost its effect after a few trials, the feeling of the passage remaining based on the emotion felt, i.e., the boredom felt in the easy task. Our experiments thus showed that the feeling of the passage of time is primarily grounded in the emotional affect experienced (Embodiment), and that knowledge of clock time had only a small and transient corrective effect.
Keywords: Consciousness; Emotion; External clock; Time.
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