面孔表情进入意识的时间比较——来自双眼竞争的证据

Comparison of the Time that Facial Expression Access to Awareness:Evidence from Binocular Rivalry

采用连续闪烁抑制范式,以7种基本面孔表情(中性、高兴、厌恶、恐惧、悲伤、惊喜、愤怒)为实验材料,考察何种面孔表情能更快进入个体的意识层面.研究中给被试一只眼呈现动态噪声图片,另一只眼呈现面孔目标刺激图片.面孔图片会在左上、左下、右上、右下4个位置随机出现.要求被试看到面孔后立刻判断面孔的位置.实验记录从试开始到被试按键这段时间,即记录了刺激突破抑制阶段进入意识层面所需要的时间.结果发现,愤怒面孔比中性面孔更快进入意识,表明人们可能对愤怒面孔更加敏感.

Using continuous flash suppression（ CFS） paradigm and seven facial expressions as stimuli,the present study explored the time that faces used to access to awareness. In the experiment,one eye was presented with a full-contrast dynamic CFS display and the other eye viewed a face image. The face was presented within one of four quadrants and observers were instructed to press one of two response buttons as quickly as possible once the quadrant containing a face,or any part of a face,was identified. Trials terminated once responses were made. Reaction time（ RT） and accuracy were recorded. Results showed that the RT of angry faces was shorter than that of neutral faces,suggesting that the individual may be more sensitive to the angry face than other faces.