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Language Learning Under Varied Conditions: Neural Indices of Speech Perception in Bilingual Turkish-German Children and in Monolingual Children With Developmental Language Disorder (DLD)
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In: Front Hum Neurosci (2022)
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Differences in Speech Discrimination Between Monolinguals and Bilinguals as Evidence of MMN Response Background Results ...
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Neural Indices of Vowel Discrimination in Monolingual and Bilingual Infants and Children
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In: Ear Hear (2019)
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The Duration of Auditory Sensory Memory for Vowel Processing: Neurophysiological and Behavioral Measures
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Abstract:
Speech perception behavioral research suggests that rates of sensory memory decay are dependent on stimulus properties at more than one level (e.g., acoustic level, phonemic level). The neurophysiology of sensory memory decay rate has rarely been examined in the context of speech processing. In a lexical tone study, we showed that long-term memory representation of lexical tone slows the decay rate of sensory memory for these tones. Here, we tested the hypothesis that long-term memory representation of vowels slows the rate of auditory sensory memory decay in a similar way to that of lexical tone. Event-related potential (ERP) responses were recorded to Mandarin non-words contrasting the vowels /i/ vs. /u/ and /y/ vs. /u/ from first-language (L1) Mandarin and L1 American English participants under short and long interstimulus interval (ISI) conditions (short ISI: an average of 575 ms, long ISI: an average of 2675 ms). Results revealed poorer discrimination of the vowel contrasts for English listeners than Mandarin listeners, but with different patterns for behavioral perception and neural discrimination. As predicted, English listeners showed the poorest discrimination and identification for the vowel contrast /y/ vs. /u/, and poorer performance in the long ISI condition. In contrast to Yu et al. (2017), however, we found no effect of ISI reflected in the neural responses, specifically the mismatch negativity (MMN), P3a and late negativity ERP amplitudes. We did see a language group effect, with Mandarin listeners generally showing larger MMN and English listeners showing larger P3a. The behavioral results revealed that native language experience plays a role in echoic sensory memory trace maintenance, but the failure to find an effect of ISI on the ERP results suggests that vowel and lexical tone memory traces decay at different rates.
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Keyword:
Psychology
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URL: https://doi.org/10.3389/fpsyg.2018.00335
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5874311/
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Changes in English Past Tense Use by Bilingual School-Age Children With and Without Developmental Language Disorder
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T-complex measures in bilingual Spanish-English and Turkish-German children and monolingual peers
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In: PLoS ONE ; 12 (2017), 3. - e0171992. - eISSN 1932-6203 (2017)
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T-complex measures in bilingual Spanish-English and Turkish-German children and monolingual peers
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Neurophysiological and Behavioral Responses of Mandarin Lexical Tone Processing
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From Sensory Perception to Lexical-Semantic Processing: An ERP Study in Non-Verbal Children with Autism
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Neural mismatch indices of vowel discrimination in monolingually and bilingually exposed infants: Does attention matter?
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The Development of English Vowel Perception in Monolingual and Bilingual Infants: Neurophysiological Correlates
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