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ISSN : 1226-9654

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Vol.28 No.2

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Effects of Emotional Arousal Induced by Crime-Related Words on Visual Feature Binding

The Korean Journal of Cognitive and Biological Psychology / The Korean Journal of Cognitive and Biological Psychology, (P)1226-9654; (E)2733-466X
2016, v.28 no.2, pp.327-347
https://doi.org/10.22172/cogbio.2016.28.2.007


& (2016). Effects of Emotional Arousal Induced by Crime-Related Words on Visual Feature Binding. The Korean Journal of Cognitive and Biological Psychology, 28(2), 327-347, https://doi.org/10.22172/cogbio.2016.28.2.007

Abstract

Emotional arousal influences sensory information processing in various ways. Observers’ memories of a crime-related stimulus capable of evoking emotional arousal, for example, are much more accurate than memories of a neutral stimulus that does not induce emotional arousal because the crime-related stimulus captures observers’ attention. This study explored whether this crime-related stimuli superiority can be also found in visual feature binding. For this experiment, after a brief presentation of a crime-related and two neutral words written in different colors on a memory display, one test word appeared on the test display. Participants were asked to perform a change detection task for the color of the test word. In experiment 1, participants showed more accurate memory in response to the color of the crime-related words than the neutral words in the New condition, wherein the test word appeared in a new color that had not been employed in any words of the memory display. In contrast, the superiority of the crime-related words was not observed in the Switch condition in which the test word was presented in a color that had been employed for another word of the memory display. Failure in finding the superiority of the crime-related words in the Switch condition might result from enhanced perceptual organization among words of the memory display because participants tried to remember three words as one group. In experiment 2, to test this hypothesis, we manipulated the level of perceptual organization among words by adding lines to the memory display: sometimes the lines connected three words and sometimes they did not. Although the superiority of crime-related words was not observed when connecting lines were added, the addition of unconnected lines resulted in better accuracy for crime-related words. These results suggested that emotional arousal had an effect on early visual information processing, and that the direction of the effect may be different according to various properties of the scene.

keywords
정서, 세부 특징 결합, 범죄, 주의, emotion, feature binding, crime, attention

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