Self-Resemblance Modulates Processing of Socio-Emotional Pictures in a Context-Sensitive Manner: Evidence From Startle Modification and Heart Rate Deceleration
Self-Resemblance Modulates Processing of Socio-Emotional Pictures in a Context-Sensitive Manner: Evidence From Startle Modification and Heart Rate Deceleration
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DOI：
10.1027/0269-8803/a000216
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发表时间：
2019-04
影响因子：
1.3
通讯作者：
J. B. Finke;Xinwei Zhang;Daniel Best;J. Lass-Hennemann;H. Schächinger
中科院分区：
文献类型：
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作者：
J. B. Finke;Xinwei Zhang;Daniel Best;J. Lass-Hennemann;H. Schächinger
情绪信息的相关性随自我投入而变化。目前的研究是为了测试细微的面部相似是否足以影响复杂社会情绪图片的注意力和情感处理。经过数字处理的面孔与参与者（最终样本：N = 21）自己和不熟悉的对照面孔（形状和颜色变化）相似，并呈现在情感唤起的社会互动图片中，即威胁与性场景。在图像开始后300 ms或3000 ms的刺激开始异步（SOAs）时，用声白噪声（50 ms, 105 dB）诱发惊跳反应，并通过肌电图（EMG）在眼轮匝肌记录惊跳反应。大多数参与者都没有意识到变形操作，意识并不影响主要结果。在短导联间隔内的惊吓抑制和图片诱发的心率减慢表明，面部自我相似以一种情境敏感的方式调节动机显著性的影响，增加了与威胁相关的脉冲前抑制，而不是色情提示。总的来说，本研究表明，具有一般动机意义和自我关联的视觉线索以一种快速的、可能是自动的方式整合。
Relevance of emotional information varies with self-involvement. The current study was undertaken to test whether subtle facial self-resemblance is sufficient to affect attentional and affective processing of complex socio-emotional pictures. Faces digitally manipulated to resemble the participants’ (final sample: N = 21) own versus unfamiliar control faces (form and color morphs) were presented in pictures of emotionally evocative social interactions, that is, threat versus sex scenes. At stimulus onset asynchronies (SOAs) of either 300 ms or 3,000 ms after picture onset, startle responses were elicited by acoustic white noise bursts (50 ms, 105 dB), and recorded at the orbicularis oculi via electromyography (EMG). The majority of participants remained unaware of the morphing manipulation, and awareness did not affect the principal results. As indexed by inhibition of startle at short lead intervals and by picture-evoked heart rate deceleration, facial self-resemblance modulates effects of motivational salience in a context-sensitive way, increasing prepulse inhibition with threat-related, but not erotic cues. Overall, the present study suggests that visual cues of general motivational significance and of self-relevance are integrated in a fast, presumably automatic manner.