SLHS 2204 Lecture Notes - Lecture 11: Phonotactics, English Language In England, Electrophysiology
Document Summary
What we have learned from erp studies in monolingual english babies. Brain responses suggested the brain was still open or able to differentiate between native and non-native speech sounds. The interesting pattern in brain responses was found in the erps associated with non-native speech sound. If the brain is able to phonemically discriminate two sounds with low attentional demands then: The deviant is more negative than the standard. Infants word productions abilities were followed for 20 months after erp measure were taken. Number of words produced as a function of age and erp. P-responders seem to be going through a perceptual narrowing process while n-responders are not. Positivity that gets reduced and develops into a later negativity is the key. In terms of perceptual narrowing it seems that the key is form early-positive to later-negative for the native speech sounds. Not due to acoustic salience among stimuli. First step in the perceptual narrowing process.