What Aspects of Face Processing Are Impaired in Developmental Prosopagnosia?

Autor/inn/en	Le Grand, Richard; Cooper, Philip A.; Mondloch, Catherine J.; Lewis, Terri L.; Sagiv, Noam; de Gelder, Beatrice; Maurer, Daphne
Titel	What Aspects of Face Processing Are Impaired in Developmental Prosopagnosia?
Quelle	In: Brain and Cognition, 61 (2006) 2, S.139-158 (20 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0278-2626
DOI	10.1016/j.bandc.2005.11.005
Schlagwörter	Neurological Impairments; Motion; Perceptual Impairments; Recognition (Psychology); Visual Stimuli; Visual Discrimination; Measures (Individuals) + Suchen Sie Ihr Suchwort? Neurodegenerative Erkrankung; Bewegungsablauf; Perceptual handicaps; Wahrnehmungsstörung; Recognition; Wiedererkennen; Messdaten
Abstract	Developmental prosopagnosia (DP) is a severe impairment in identifying faces that is present from early in life and that occurs despite no apparent brain damage and intact visual and intellectual function. Here, we investigated what aspects of face processing are impaired/spared in developmental prosopagnosia by examining a relatively large group of individuals with DP (n = 8) using an extensive battery of well-established tasks. The tasks included measures of sensitivity to global motion and to global form, detection that a stimulus is a face, determination of its sex, holistic face processing, processing of face identity based on features, contour, and the spacing of features, and judgments of attractiveness. The DP cases showed normal sensitivity to global motion and global form and performed normally on our tests of face detection and holistic processing. On the other tasks, many DP cases were impaired but there was no systematic pattern. At least half showed deficits in processing of facial identity based on either the outer contour or spacing of the internal features, and/or on judgments of attractiveness. Three of the eight were impaired in processing facial identify based on the shape of internal features. The results show that DP is a heterogeneous condition and that impairment in recognizing faces cannot be predicted by poor performance on any one measure of face processing. (Author).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10