Monday, December 12, 2011

Auditory-speech perception

A segment of chapter 13 talks about the McGurk effect. This shows the importance of vision on speech perception. The auditory stimulus of the speaker says "ba-ba" while the visual stimulus shows the speaker saying "ga-ga". The observer who watches and listens at the same time actually hears "da-da". The observer who simply listens to the speaker, without watching, hears "ba-ba". The observer hears "da-da" because that is the midpoint between "ga" and "ba". The chapter also goes on to say that the link between speech and vision has a physiological basis. I thought it was very interesting that the same areas of the brain are activated for lip reading and speech perception.
~Holly Heffley

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