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KMID : 0389420220300040268
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Korean Journal of Stress Research
2022 Volume.30 No. 4 p.268 ~ p.276
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The Effect of Threatening Stimuli on Attentional Blink
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Kwon Yun-Jung
Choi Yun-Kyeung
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Abstract
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Background: This study aimed to identify the effect of momentary Attentional Blink (AB) in temporarily stressful situations to reveal the relationship between emotion and attention after a traumatic experience.
Methods: Participants were 57 college students randomly assigned to either an experimental group (n=30) that watched news videos depicting disasters or a control group (n=27) that did not watch them. This was followed by the Rapid Serial Visual Presentation (RSVP) task for both groups. AB appeared when T1 was a news threat stimulus for the experimental and control group; the shorter the presentation interval between T1 and T2, the stronger the AB. On the other hand, when news-neutral stimuli were presented in T1, the AB pattern between the groups changed. The AB pattern appeared regardless of the type of word presented to the control group in T1; however, in the experimental group, the AB pattern appeared only when the news-neutral word was presented in T1.
Results: The results suggest that AB appears when T1 is a traumatic stimulus. However, when T1 is a conditioned traumatic stimulus, the AB pattern varies depending on whether the participant watched the disaster video.
Conclusions: Our results expand on existing studies by confirming the AB effect in trauma-related neutral stimuli and trauma stimuli.
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KEYWORD
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Attentional blink, Rapid serial visual presentation paradigm, Attentional bias
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