Ribeiro Rafaela Larsen, Teixeira-Silva Flávia, Pompéia Sabine, Bueno Orlando Francisco Amodeo
Department of Psychobiology, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil.
Physiol Behav. 2007 Aug 15;91(5):671-5. doi: 10.1016/j.physbeh.2007.03.031. Epub 2007 Apr 11.
This article describes pleasant IAPS pictures that elicit low-arousal rather than the high-arousal physiological responses previously reported in the literature. Thirty-two International Affective Picture System (IAPS) photographs were grouped into 4 sets of 8 photographs: highly pleasant-arousing (sexual content and adventures), highly pleasant-relaxing pictures (landscapes, flowers or babies), neutral on both valence/arousal, and highly unpleasant-arousing ones. These stimuli were shown to 24 healthy Brazilian University students (12 males) who had their physiological responses recorded [corrugator and zygomatic facial electromyography activity, skin conductance, heart rate, and peripheral temperature]. Zygomatic EMG differentiated low-arousal pleasant photographs from high-arousal pleasant stimuli of the same valence.
本文描述了令人愉悦的国际情感图片系统（IAPS）图片，这些图片引发的是低唤醒水平的生理反应，而非文献中先前报道的高唤醒水平的生理反应。32张国际情感图片系统（IAPS）照片被分为4组，每组8张：高度愉悦且唤起兴奋的（包含性内容和冒险场景）、高度愉悦且令人放松的图片（风景、花朵或婴儿）、效价/唤醒水平均为中性的，以及高度不悦且唤起兴奋的。这些刺激物展示给24名健康的巴西大学生（12名男性），并记录他们的生理反应[皱眉肌和颧肌面部肌电图活动、皮肤电传导、心率和外周温度]。颧肌肌电图能够区分相同效价的低唤醒愉悦照片和高唤醒愉悦刺激物。
