中文摘要：

已有面孔身份与表情识别研究提示,高频空间信息可能选择性地与表情识别有关,而低频空间信息则选择性地与身份识别有关。为验证这一假设,操纵空间频率设计三个Garner效应测量实验。实验1测量全频条件下身份表情识别之间的Garner效应,结果显示,相互间的干扰均显著。实验2测量高频条件下的干扰效应,发现表情识别的Garner效应不再显著而身份识别的Garner效应无明显变化,出现分离。实验3测量低频条件下的Garner效应,结果表明,表情与身份识别的Garner效应仍显著,未受高频过滤影响。基于Garner范式,提出面孔识别的可分离度与难度双指标同时考察的方法,对实验结果进行了分析,并由此得出结论,高频空间信息是面孔身份与表情信息分离的有效尺度。

英文摘要：

By changing configural or featural/category information,White（2002） revealed that configural changes mainly interfered with facial identity processing while featural alterations largely reduced facial expression processing.With this technique,Goffaux,Hault,Michel,Vuongo,and Rossion（2005） presented that low spatial frequency played in configural changes detection,whereas featural changes detection depended on high spatial frequency.Based on these two studies,we can draw a conclusion that low spatial frequency plays an important role in facial identity recognition while high spatial frequency plays in facial expression recognition.Can this conclusion be really supported by experiments？ To test this hypothesis,we conducted three Garner experiments in current study.In terms of the hypothesis,high spatial frequency enhances facial expression recognition but not facial identity recognition,while low spatial frequency facilitates facial identity recognition but not facial expression recognition.Dissociation could be found in recognition of facial identity and facial expression.Three Garner experiments were performed on 96 participants,with each 32 participants.In experiment 1,we measured Garner effect between facial identity and expression with full spatial face photos.In experiments 2,we complete the measurement on low spatial frequency filtered photos,and in experiment 3 the same measurement were made on high spatial frequency filtered face photos.32 participants were recruited for each experiment.Results of experiment 1 indicated that obvious Garner effects were observed in either identity or expression recognition.In experiment 2,high spatial frequency enhanced facial expression recognition by lowering Garner effect,but it had no influence on facial identity recognition.In experiment 3,low spatial frequency exerted no obvious influence on either identity or expression recognition.Analysis of dissociability（measurement of Garner effect） and difficulty（measurement of selective reaction time in base lin