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Vol.26 No.4

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Effects of Conscious and Unconscious Emotional Stimuli on Size Perception

The Korean Journal of Cognitive and Biological Psychology / The Korean Journal of Cognitive and Biological Psychology, (P)1226-9654; (E)2733-466X
2014, v.26 no.4, pp.273-294
https://doi.org/10.22172/cogbio.2014.26.4.004


& (2014). Effects of Conscious and Unconscious Emotional Stimuli on Size Perception. The Korean Journal of Cognitive and Biological Psychology, 26(4), 273-294, https://doi.org/10.22172/cogbio.2014.26.4.004

Abstract

Research has shown that not only can emotion enhance the processing speed of information, but also cause perceptual biases (e.g. distance, size, time, etc). Previous studies investigated perceptual biases when subjects were consciously exposed to emotion stimuli. In the current study, however, using a size judgment task, we investigated how unconsciously presented emotion stimuli (i.e. do not reach conscious awareness) affect size perception. In Experiment 1, we measured the effects of conscious emotion stimuli on the perceived size of subsequently presented stimuli. The results showed that subjects estimated the size of the subsequently presented stimuli to be larger when preceded by negative emotional stimuli, compared to when preceded by neutral or positive stimuli. Thus only the negative emotion elicited perceptual bias on size perception. In Experiment 2, we measured the effects of unconsciously presented emotion stimuli on size perception of subsequent stimuli. While our results were not identical to that of Experiment 1, the data showed that negative emotion increases variance in size perception of the subsequent stimulus compared to that of neutral and positive emotion. In conclusion, through two experiments, the data indicates that the conscious and unconscious processes of emotion can affect size perception or size judgment in different ways.

keywords
정서, 크기 지각, 의식, 무자각, Emotion, Size perception, Consciousness, Unawareness

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