Speech Understanding and Ageing: Influence of Cognitive-Linguistic Processes and Variations in the Speech Signal CPDONLINE38
Listeners exhibit the remarkable ability to turn the complex variations in acoustic energy that comprise the speech signal into something meaningful. To be understood, continuous speech must be segmented into its component parts, and then individual words recognised. In older listeners this is more complex, as age-related hearing loss and changes in cognition influence these basic processes. Furthermore, the speech signal itself varies, presenting greater perceptual challenges to older listeners. Older adults commonly report that they find accents particularly difficult to understand. In addition, speech changes associated with neurological disorders (e.g., Parkinson's disease) can make speech comprehension more difficult. This webinar describes the cognitive-linguistic processes of speech understanding and how these are affected by ageing and clarity of the speech signal.