Categorical perception of face identity in noise isolates configural processing.
Categorical perception of face identity in noise isolates configural processing.
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DOI:
10.1037//0096-1523.27.3.573
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发表时间:
2001-06
期刊:
影响因子:
--
通讯作者:
Elinor McKone;P. Martini;Ken Nakayama
中科院分区:
文献类型:
--
作者:
Elinor McKone;P. Martini;Ken Nakayama
Neuropsychological evidence suggests that face recognition based on configural (holistic) information can occur in isolation from recognition based on local feature cues. The present study shows that configural processing can be isolated experimentally in normal subjects. A phenomenon is reported that exists only for upright whole faces, namely categorical perception (CP) of face identity in noise. Three discrimination tasks (ABX, better likeness, and similarity ratings) were used to test for perceptual distortion across the category boundary predicted from binary classification of face morphs. Noise was added such that any single local region provided unreliable cues to identity. Under these conditions, CP was found for upright faces but not for inverted faces or single features, even with more than 10,000 trials. The CP-in-noise signature phenomenon was then used to show that configural processing survives image plane rotations of 45 degrees-90 degrees.