Behavioral Response Modeling to Resolve Listener- and Stimulus-Related Influences on Audiovisual Speech Integration in Cochlear Implant Users

Our findings suggest that age and cochlear implantation may have independent effects on McGurk effect perception. Noisy encoding of disparity modeling confirms that age is a strong predictor of an individual's prior likelihood of experiencing audiovisual integration but suggests that hearing status modulates this relationship due to differences in sensory noise during speech encoding. Together, these findings demonstrate that different groups of listeners can arrive at similar levels of performance in different ways, and highlight the need for careful consideration of stimulus- and group-related effects on multisensory speech perception.