title: The effect of native-language experience on the sensory-obligatory components, the P1-N1-P2 and the T-complex.
abstract: The influence of native-language experience on sensory-obligatory auditory-evoked potentials (AEPs) was investigated in native-English and native-Polish listeners. AEPs were recorded to the first word in nonsense word pairs, while participants performed a syllable identification task to the second word in the pairs. Nonsense words contained phoneme sequence onsets (i.e., /pt/, /pət/, /st/ and /sət/) that occur in the Polish and English languages, with the exception that /pt/ at syllable onset is an illegal phonotactic form in English. P1-N1-P2 waveforms from fronto-central electrode sites were comparable in English and Polish listeners, even though, these same English participants were unable to distinguish the nonsense words having /pt/ and /pət/ onsets. The P1-N1-P2 complex indexed the temporal characteristics of the word stimuli in the same manner for both language groups. Taken together, these findings suggest that the fronto-central P1-N1-P2 complex reflects acoustic feature processing of speech and is not significantly influenced by exposure to the phoneme sequences of the native-language. In contrast, the T-complex from bilateral posterior temporal sites was found to index phonological as well as acoustic feature processing to the nonsense word stimuli. An enhanced negativity for the /pt/ cluster relative to its contrast sequence (i.e., /pət/) occurred only for the Polish listeners, suggesting that neural networks within non-primary auditory cortex may be involved in early cortical phonological processing.
authors: The City University of New York-Graduate School and University Center, Program in Speech-Language-Hearing Sciences, 365 Fifth Avenue, New York, NY 10016, USA. wagner.monica1@gmail.com
authors: Monica
authors: M
authors: Wagner
authors: Valerie L
authors: VL
authors: Shafer
authors: Brett
authors: B
authors: Martin
authors: Mitchell
authors: M
authors: Steinschneider
mesh_terms: D000328:Adult; D001921:Brain / Q000502:physiology*; D004569:Electroencephalography; D005072:Evoked Potentials, Auditory / Q000502:physiology*; D005260:Female; D006801:Humans; D007802:Language; D008297:Male; D019303:Multilingualism; D012815:Signal Processing, Computer-Assisted; D013067:Speech Perception / Q000502:physiology*; D055815:Young Adult
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