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	Author	Awasthi, Bhuvanesh; Friedman, Jason; Williams, Mark A
	Title	Reach Trajectories Reveal Delayed Processing of Low Spatial Frequency Faces in Developmental Prosopagnosia			Type	Journal Article
	Year	2012	Publication	Cognitive Neuroscience	Abbreviated Journal
	Volume	3	Issue	2	Pages	120-130
	Keywords
	Abstract	Developmental prosopagnosia (DP) is characterized by a selective deficit in face recognition despite normal cognitive and neurological functioning. Previous research has established configural processing deficits in DP subjects. Low spatial frequency (LSF) information subserves configural face processing. Using hybrid stimuli, here we examined the evolution of perceptual dynamics and integration of LSF information by DP subjects while they pointed to high spatial frequency (HSF) face targets. Permutation analysis revealed a 230-ms delay in LSF processing by DP subjects as compared to controls. This delayed processing is likely to contribute to the difficulties associated with face recognition in DP subjects and is reflective of their alleged reliance on local rather than global features in face perception. These results suggest that quick and efficient processing of LSF information is critical for the development of normal face perception.
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	Notes				Approved	no
	Call Number	Penn State @ write.to.jason @			Serial	27
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