Title:
Lip-reading abilities in a subject with congenital prosopagnosia
Authors:
J.Wathour , M. Decat F. Vander Linden and N. Deggouj 1,2
Institutions:
1Centre of Audio-Phonology, Catholic University of Louvain, University Hospital Saint-Luc, Av hippocrate 10, 1200 Brussels, Belgium; ENT department , Catholic University of Louvain, University Hospital Saint-Luc, Av hippocrate 10, 1200 Brussels, Belgium
Keywords:
Congenital prosopagnosia; lip-reading; McGurk; facial dynamic; fine dynamic
Pages:
45 - 49
Abstract:
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.
Issue:
Vol. 11, 2015, 1st trimester


Download:
Lip-reading abilities in a subject with congenital prosopagnosia