In this study, we tested two bipolar groups, manic-episode and depressive episode patients and heathy controls over a series of McGurk effect stimuli as well as auditory and visual-only (lipread) speech stimuli. We hypothesized that the bipolar group’s auditory–visual speech integration should be weaker than the control group. We also predicted the manic-period bipolar individuals should integrate visual speech information more robustly than their depressive-episode counterparts. These hypotheses were not supported, and all groups were found to integrate auditory and visual speech information comparably. However, paradoxically, the depressive-episode individuals were unable to lip-read despite that they were able to integrate the two sources of speech information. Here, we discuss and try to make sense of this behavioural data with solid predictions on how corresponding physiological data can decipher our findings. On top of this discussion, physiological predictions and possibilities are presented.
Cite as: Erdener, D., Erdener, Ş.E., Yordaml, A. (2019) Auditory-visual speech perception in bipolar disorder: behavioural data and physiological predictions. Proc. The 15th International Conference on Auditory-Visual Speech Processing, 11-15, doi: 10.21437/AVSP.2019-3
@inproceedings{erdener19_avsp,
author={Doğu Erdener and Şefik Evren Erdener and Arzu Yordaml},
title={{Auditory-visual speech perception in bipolar disorder: behavioural data and physiological predictions}},
year=2019,
booktitle={Proc. The 15th International Conference on Auditory-Visual Speech Processing},
pages={11--15},
doi={10.21437/AVSP.2019-3}
}