Lip-reading abilities in a subject with congenital prosopagnosia
(2015) B-ENT — Vol. 11, n° 1, p. 45-49 (2015)
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- (en) Lip-reading abilities in a subject with congenital prosopagnosia. We present the case of an individual with congenital prosopagnosia or face blindness, a disorder where the ability to recognize faces is impaired. We studied the lip-reading ability and audiovisual perception of this subject using a DVD with four conditions (audiovisual congruent, auditory, visual, and audiovisual incongruent) and compared results with a normal patient cohort. The patient had no correct responses in the visual lip-reading task; whereas, he improved in the audiovisual congruent task. In the audiovisual incongruent task, the patient provided one response; thus, he was able to lip-read. (He was able to use lip- reading/to use labial informations)This patient perceived only global dynamic facial movements, not the fine ones. He had a sufficient complementary use of lip-reading in audiovisual tasks, but not visual ones. These data are consistent with abnormal development of the pathways used for visual speech perception and associated with second-order face processing disorders and normal development of the audiovisual network for speech perception.
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Wathour, J., Decat, M., Vander Linden, F., & Deggouj, N. (2015). Lip-reading abilities in a subject with congenital prosopagnosia. B-ENT, 11(1), 45-49. https://hdl.handle.net/2078.5/183690 (Original work published 2015)