Recalibration of Auditory Speech by Lipread versus Lexical information
Poster Presentation

Sabine van Linden
Department of Psychonomics, Tilburg University

Jean Vroomen
Department of Psychonomics, Tilburg University

Jyrki Tuomainen
Centre for Cognitive Neuroscience, University of Turku, Finland

     Abstract ID Number: 62
     Full text: Not available
     Last modified: March 18, 2005

Abstract
Bertelson, Vroomen & de Gelder,(Psychological Science, 2003) demonstrated that lipread speech can recalibrate auditory speech identification. Exposure to an ambiguous sound intermediate between /aba/ and /ada/ dubbed onto a face articulating /aba/ or /ada/ increased the proportion identification responses consistent with the visual stimulus on subsequent posttests, revealing recalibration. Others have recently reported similar effects using lexical information. Here, we directly compared the magnitude and the dissipation of aftereffects induced by lipread and lexical information, using the same different materials and procedures. This allowed us to check whether there is a fundamental difference between bottom-up perceptual information and top-down lexical knowledge.