Perception du temps et émotions chez l’adulte et l’enfant : étude des mécanismes

Abstract : The objective of this thesis was to study more precisely the influence of emotions on time perception, and above all to try to identify the underlying mechanisms, still unknown to this day. For this, I conducted 6 studies organized around 2 axes. The goal of Axis 1 was to identify the mechanisms involved in the effect of emotions on the duration judgment of emotional stimuli in a temporal bisection task. The goal of Axis 2 was to develop new induction methods in order to observe more robust effects.The results reveal a subjective lengthening of time, with different types of highly arousing emotional stimuli. This effect appears with several types of threatening stimuli and a wide range of durations, ranging from 0.3 to 8 s. It also appears similarly in adults and children, at least from the age of 5. Moreover, this time dilatation is not accompanied by an improvement in time sensitivity, even when temporal discrimination was difficult. All of these data suggest a robust effect of highly arousing emotions on time perception, which would be explained mainly by automatic mechanisms, and would cause the acceleration of the internal clock. In a situation of danger, this clock acceleration would allow the individual to react as quickly as possible. When time goes faster, the individual is prepared to act quicker. However, further studies are still needed to resolve the issue of automatic processes and the absence of attentional effects.
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Sophie Fayolle. Perception du temps et émotions chez l’adulte et l’enfant : étude des mécanismes. Psychologie. Université Clermont Auvergne, 2017. Français. ⟨NNT : 2017CLFAL018⟩. ⟨tel-01961307⟩

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