The effect of negative emotion on eyewitness functional field of view.

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  • 不快な情動が目撃者の有効視野に及ぼす影響
  • フカイ ナ ジョウドウ ガ モクゲキシャ ノ ユウコウ シヤ ニ オヨボス エイキョウ

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This study examined whether the functional field of view was shrunk by negative emotion. The functional field of view was determined in terms of the number detection task, in which a number presented for a brief exposure peripherally in one of the four video screen corners. Participants watched either negative emotional or neutral event on the screen. Emotion was evaluated by means of self-ratings of mood adjective checklist, and the results showed that tensional arousal increased in participants who watched the negative emotional event. After watching the video participants were asked to report whether they noticed the number. Participants who watched the emotional event were able to detect fewer numbers than participants who watched the neutral event. This result suggests that the functional field of view shrank because of negative emotion. Peripheral memory decrement reported in previous studies might be due to the shrinkage of the functional field of view.

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