Neumann Markus F, Schweinberger Stefan R, Wiese Holger, Burton A Mike
Department of General Psychology, University of Jena, Germany.
Neuroreport. 2007 Aug 27;18(13):1305-9. doi: 10.1097/WNR.0b013e328273bc80.
An attentional capacity limit was recently suggested for faces, such that only one face can be processed at a time. We measured interference and repetition priming caused by irrelevant distractor faces. Participants initially performed male/female judgments for central faces or symbols flanked by distractor faces. Interference (slower responses for sex-incongruent target-distractor pairs) occurred for central symbols but was absent for central faces. In subsequent fame judgements, previously presented distractor faces had no repetition priming effect on response times. Relative to new faces, event-related brain potentials revealed a right occipitotemporal negativity approximately 400-600 ms for faces previously shown as distractors flanking central symbols (but not distractors flanking faces). These findings support a face-specific attentional capacity limit, showing that event-related brain potential priming effects can reveal covert distractor processing.
最近有人提出，面部存在注意力容量限制，即一次只能处理一张脸。我们测量了由无关干扰面孔引起的干扰和重复启动效应。参与者最初对位于干扰面孔两侧的中央面孔或符号进行性别判断。中央符号出现了干扰（性别不一致的目标-干扰对反应更慢），但中央面孔没有。在随后的知名度判断中，之前呈现的干扰面孔对反应时间没有重复启动效应。相对于新面孔，事件相关脑电位显示，对于之前作为位于中央符号两侧的干扰面孔（而非位于面孔两侧的干扰面孔），在大约400-600毫秒时出现右枕颞负波。这些发现支持了特定于面部的注意力容量限制，表明事件相关脑电位启动效应可以揭示隐蔽的干扰处理过程。
