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Abstract
Judging the duration of emotional stimuli is known to be influenced by their valence and arousal values. However, whether and how perceiving emotion in one modality affects time perception in another modality is still unclear. To investigate this, we compared the influence of different types of emotional pictures—a picture of threat, disgust, or a neutral picture presented at the start of a trial—on temporal bisection judgments of the duration of a subsequently presented vibrotactile stimulus. We found an overestimation of tactile duration following exposure to pictures of threat, but not pictures of disgust (even though these scored equally high on arousal), in a short-range temporal bisection task (range 300/900 ms). Follow-up experiments revealed that this duration lengthening effect was abolished when the range to be bisected was increased (1000/1900 ms). However, duration overestimation was maintained in the short-range bisection task regardless of whether the interval between the visual and tactile events was short or long. This pattern is inconsistent with a general arousal interpretation of duration distortion and suggests that crossmodal linkages in the processing of emotions and emotional regulation are two main factors underlying the manifestation of crossmodal duration modulation.
Highlights
Judgments of time intervals are often distorted by the emotional state a person is in
To further investigate the mechanisms underlying crossmodal emotional modulation of the internal clock system, we explored effects of emotions by comparing their modulatory influences between short and long tactile durations (Experiment 2) as well as short and long inter-stimulus intervals (ISIs) between the emotional picture and the vibrotactile stimulus (Experiment 3)
The present study was designed to investigate the effect of viewing visual emotional stimuli on the subsequent estimation of the duration of non-emotional tactile events
Summary
Judgments of time intervals are often distorted by the emotional state a person is in. Angrilli and colleagues examined duration estimation for emotional pictures, taken from the international affective picture system (IAPS) (Lang et al, 2005), presented for 2, 4, or 6 s. They found that both emotional valence and arousal were important factors in duration judgments. For high-arousal stimuli, negative pictures (e.g., mutilated bodies) were perceived as longer in duration compared to positive pictures (e.g., erotic scenes). For high-arousal stimuli, so they argued, the effect of attention is minimized, and an emotional mechanism triggered by the pictures dominates the time estimation. Emotional sounds (e.g., a woman crying) were often judged as longer than neutral ones; and negative sounds were perceived as longer than positive ones (e.g., laughs)
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