Calvo Manuel G, Nummenmaa Lauri, Hyönä Jukka
Department of Cognitive Psychology, Universidad de La Laguna, 38205 Tenerife, Spain.
Q J Exp Psychol (Hove). 2007 Dec;60(12):1585-93. doi: 10.1080/17470210701515868.
To investigate preferential processing of emotional scenes competing for limited attentional resources with neutral scenes, prime pictures were presented briefly (450 ms), peripherally (5.2 degrees away from fixation), and simultaneously (one emotional and one neutral scene) versus singly. Primes were followed by a mask and a probe for recognition. Hit rate was higher for emotional than for neutral scenes in the dual- but not in the single-prime condition, and A' sensitivity decreased for neutral but not for emotional scenes in the dual-prime condition. This preferential processing involved both selective orienting and efficient encoding, as revealed, respectively, by a higher probability of first fixation on--and shorter saccade latencies to--emotional scenes and by shorter fixation time needed to accurately identify emotional scenes, in comparison with neutral scenes.
为了研究情绪场景与中性场景竞争有限注意资源时的优先加工情况,启动图片以短暂呈现(450毫秒)、外周呈现(距注视点5.2度)且同时呈现(一张情绪场景和一张中性场景)与单独呈现的方式进行。启动图片之后是掩蔽和用于识别的探测刺激。在双启动条件下,情绪场景的击中率高于中性场景,但在单启动条件下并非如此;在双启动条件下,中性场景的A'敏感性降低,而情绪场景则不然。与中性场景相比,这种优先加工涉及选择性定向和高效编码,分别表现为首次注视情绪场景的概率更高、对情绪场景的扫视潜伏期更短,以及准确识别情绪场景所需的注视时间更短。