15th Annual Conference of the International Speech Communication Association

September 14-18, 2014

Audiovisual Temporal Sensitivity in Typical and Dyslexic Adult Readers

Ana A. Francisco (1), Alexandra Jesse (2), Margriet A. Groen (1), James M. McQueen (1)

(1) Radboud Universiteit Nijmegen, The Netherlands
(2) UMass Amherst, USA

Reading is an audiovisual process that requires the learning of systematic links between graphemes and phonemes. It is thus possible that reading impairments reflect an audiovisual processing deficit. In this study, we compared audiovisual processing in adults with developmental dyslexia and adults without reading difficulties. We focused on differences in cross-modal temporal sensitivity both for speech and for non-speech events. When compared to adults without reading difficulties, adults with developmental dyslexia presented a wider temporal window in which unsynchronized speech events were perceived as synchronized. No differences were found between groups for the non-speech events. These results suggests a deficit in dyslexia in the perception of cross-modal temporal synchrony for speech events.

Full Paper

Bibliographic reference.  Francisco, Ana A. / Jesse, Alexandra / Groen, Margriet A. / McQueen, James M. (2014): "Audiovisual temporal sensitivity in typical and dyslexic adult readers", In INTERSPEECH-2014, 2575-2579.