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Article Dans Une Revue Quarterly Journal of Experimental Psychology Année : 2023

On the perception of movement vigour

Résumé

It is common to get the impression that someone moves rather slowly or quickly in everyday life. In motor control, the natural pace of movement is captured by the concept of vigour, which is often quantified from the speed or duration of goal-directed actions. A common phenomenon, here referred to as the vigour law, is that preferred speed and duration idiosyncratically increase with the magnitude of the motion. According to the direct-matching hypothesis, this vigour law could thus underlie the judgement of someone else’s movement vigour. We conducted a series of three experiments ( N = 80) to test whether the vigour law also exists in perception and whether it is linked to that of action. In addition to measuring participants’ vigour, we also asked them to judge the quickness of stimuli representing horizontal arm reaching movements varying through amplitudes, speeds, and durations. Results showed that speed and duration of movements perceived as neither fast nor slow (i.e., natural pace) increased with amplitude, thereby indicating that the vigour law holds when an observer judges the natural pace of others’ movements. Results also revealed that this judgement was population-based (related to the average vigour of all participants) rather than individual-based (participant’s own vigour).
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Dates et versions

hal-04262451 , version 1 (31-10-2023)

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Ombeline Labaune, Thomas Deroche, Carole Castanier, Bastien Berret. On the perception of movement vigour. Quarterly Journal of Experimental Psychology, 2023, 76 (10), pp.2329-2345. ⟨10.1177/17470218221140986⟩. ⟨hal-04262451⟩
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