Aguado Luis, García-Gutierrez Ana, Castañeda Ester, Saugar Cristina
Universidad Complutense.
Span J Psychol. 2007 Nov;10(2):209-17. doi: 10.1017/s1138741600006478.
Priming of affective word evaluation by pictures of faces showing positive and negative emotional expressions was investigated in two experiments that used a double task procedure where participants were asked to respond to the prime or to the target on different trials. The experiments varied between-subjects the prime task assignment and the prime-target interval (SOA, stimulus onset asynchrony). Significant congruency effects (that is, faster word evaluation when prime and target had the same valence than when they were of opposite valence) were observed in both experiments. When the prime task oriented the subjects to an affectively irrelevant property of the faces (their gender), priming was observed at SOA 300 ms but not at SOA 1000 ms (Experiment 1). However, when the prime task assignment explicitly oriented the subjects to the valence of the face, priming was observed at both SOA durations (Experiment 2). These results show, first, that affective priming by pictures of facial emotion can be obtained even when the subject has an explicit goal to process a non-affective property of the prime. Second, sensitivity of the priming effect to SOA duration seems to depend on whether it is mediated by intentional or unintentional activation of the valence of the face prime.
在两项实验中，研究了通过展示正面和负面情绪表情的面部图片对情感词汇评价的启动效应。这两项实验采用了双任务程序，要求参与者在不同的试验中对启动刺激或目标刺激做出反应。实验在被试间改变了启动任务分配和启动刺激 - 目标刺激间隔（SOA，刺激开始异步）。在两项实验中均观察到显著的一致性效应（即，当启动刺激和目标刺激具有相同效价时，词汇评价比它们具有相反效价时更快）。当启动任务使被试关注面部的情感无关属性（其性别）时，在SOA为300毫秒时观察到启动效应，但在SOA为1000毫秒时未观察到（实验1）。然而，当启动任务分配明确使被试关注面部的效价时，在两个SOA持续时间均观察到启动效应（实验2）。这些结果表明，首先，即使被试有明确的目标去处理启动刺激的非情感属性，通过面部表情图片的情感启动效应仍可获得。其次，启动效应对SOA持续时间的敏感性似乎取决于它是由对面部启动刺激效价的有意还是无意激活介导的。
