The lateralization of lip-reading: a second look.
Photographs of unfamiliar speaking faces were matched by normal right-handed subjects on the basis of perceived mouth-shape (i.e. visible speech sound) across different face-views. A clear left-hemisphere (RVF) processing advantage emerged, which was absent when the task was that of identity matching. In contrast to earlier proposals, the extraction of lip-shape from face photographs may be better managed by left-hemisphere- than right-hemisphere mechanisms even at its initial stages. This may contribute to the observed patterns of dissociations in speech-reading and in audiovisual speech-processing in neurological patients.
Campbell
R
R
Department of Psychology, Goldsmiths College, University of London, U.K. R.Campbell@ucl.ac.uk
De Gelder
B
B
De Haan
E
E
D000328:Adult; D001288:Attention; D004292:Dominance, Cerebral; D005149:Facial Expression; D005260:Female; D006801:Humans; D008085:Lipreading; D008297:Male; D010700:Phonetics; D011930:Reaction Time; D012016:Reference Values