Effects of Emotion on Visual Crowding

본 연구는 주변시에 표적자극이 주위의 인접자극과 함께 제시될 때 그 식별이 어려워지는 밀집효과(visual crowding)에 정서가 미치는 영향을 알아보았다. 밀집효과 연구에서 주로 사용하였던 얼굴이나 알파벳 대신, 한 글자만으로도 의미 처리 및 정서 유발이 가능한 한글을 표적자극으로 사용하였다. 실험 1에서 정서적 각성을 일으키는 의미를 포함(긍정, 부정) 혹은 포함하지 않은(중립) 표적글자를 짧게 단독으로 제시하거나(단독조건), 표적글자 양 옆에 인접자극인 무의미 한글글자 자극과 함께 제시(인접조건)한 후, 표적글자를 식별하는 과제를 실시하였다. 그 결과, 단독조건에서는 정서효과가 확인되었으나(부정>긍정>중립), 인접조건에서는 정서에 따른 차이가 발견되지 않았다. 그러나 표적글자가 인접자극인 무의미 한글글자와 함께 제시될 때 세 글자 단어와 유사한 형태를 가지면서 표적글자의 정서가가 훼손될 수 있다. 이에 실험 2에서는 인접자극으로 무의미 한글글자 자극 대신 알파벳 대문자 글자를 사용하였다. 그 결과, 정서효과가 단독조건 뿐 아니라, 인접조건에서도 발견되어, 부정적인 표적글자의 경우 그 식별률이 유의하게 높았다. 이는 인접자극의 존재에도 불구하고 표적자극의 정서가 처리되어, 밀집효과를 약화시켰다는 것을 의미한다.

keywords: 밀집효과, 정서, 주변시, 한글자극, visual crowding, emotion, peripheral vision, Korean letter stimulus

Abstract

The current study examined the emotional effects on visual crowding in which the identification of a target stimulus is difficult when the target is presented with adjacent stimuli in subjects’ peripheral vision. In stead of previous research stimulus such as the English letter or a face as stimulus on visual crowding, the Korean letters were employed because only one Korean letter could have meaning and emotion. In experiment 1, we conducted the target identification task in which participants were asked to report the target that contained emotional values (positive, negative) or did not (neutral) were presented alone (isolated condition), or presented with adjacent meaningless Korean letter distractors (crowded condition). The results indicated that whereas positive and negative targets were identified more correctly in the isolated condition (negative > positive > neutral), this benefit disappeared in the crowded condition. Nevertheless, when the target with the meaningless Korean letter distractors was presented, the emotional value of the target could be damaged because stimuli have forms such as one three-letter word. Therefore, in experiment 2, we employed English letters instead of meaningless Korean letters as distractors. The results indicated that negative targets were identified more correctly in not only the isolated condition but also the crowded condition. The results implied that the emotional value of the target is processed despite the existence of adjacent distractors.

keywords: 밀집효과, 정서, 주변시, 한글자극, visual crowding, emotion, peripheral vision, Korean letter stimulus

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논문 상세

Vol.29 No.3

정서가 밀집효과에 미치는 영향

Effects of Emotion on Visual Crowding

초록

Abstract

참고문헌

한국심리학회지: 인지 및 생물