An Evaluation of the Effect of Auditory Emotional Stimuli on Interval Timing

In: Timing & Time Perception
Hinke N. Halbertsma
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Hedderik Van Rijn University of Groningen, The Netherlands

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Emotions modulate cognitive processes, including those involved in the perception of time. A number of studies have demonstrated that the emotional modulation of interval timing can be described in terms of an attentional or an arousal-based mechanism, depending on the exact task setup. In this paper, two temporal generalization experiments with auditory emotional stimuli as distractors are presented. These experiments are modeled after the work by Lui et al. (PLoS One, , 6, e218292011) who, using visual distractors, provided evidence for an attentional account of emotion-regulated modulation of the perception of time. Experiment 1 replicates the findings of Lui et al., and thus generalizes their work to auditory stimuli. However, Experiment 2, in setup highly similar to Experiment 1, failed to find any effects of emotional modulation on interval timing. These results indicate that emotional effects on interval timing, although often reported, might not be as ubiquitous as earlier research has (implicitly) suggested.

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