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Exploring the relationship between speech perception and production across phonological processes, language familiarity, and sensory modalities ...
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Exploring the relationship between speech perception and production across phonological processes, language familiarity, and sensory modalities ...
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BASE
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EusHeidelTime: Time Expression Extraction and Normalisation for Basque ; EusHeidelTime: extracción y normalización de expresiones temporales para el euskera
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Oscillation Encoding of Individual Differences in Speech Perception
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Abstract:
Individual differences in second language (L2) phoneme perception (within the normal population) have been related to speech perception abilities, also observed in the native language, in studies assessing the electrophysiological response mismatch negativity (MMN). Here, we investigate the brain oscillatory dynamics in the theta band, the spectral correlate of the MMN, that underpin success in phoneme learning. Using previous data obtained in an MMN paradigm, the dynamics of cortical oscillations while perceiving native and unknown phonemes and nonlinguistic stimuli were studied in two groups of participants classified as good and poor perceivers (GPs and PPs), according to their L2 phoneme discrimination abilities. The results showed that for GPs, as compared to PPs, processing of a native phoneme change produced a significant increase in theta power. Stimulus time-locked analysis event-related spectral perturbation (ERSP) showed differences for the theta band within the MMN time window (between 70 and 240 ms) for the native deviant phoneme. No other significant difference between the two groups was observed for the other phoneme or nonlinguistic stimuli. The dynamic patterns in the theta-band may reflect early automatic change detection for familiar speech sounds in the brain. The behavioral differences between the two groups may reflect individual variations in activating brain circuits at a perceptual level.
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Keyword:
Research Article
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URL: https://doi.org/10.1371/journal.pone.0100901 http://www.ncbi.nlm.nih.gov/pubmed/24992269 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4081572
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Word frequency cues word order in adults: cross-linguistic evidence
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Dysfunction of the auditory thalamus in developmental dyslexia
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Brain potentials to native phoneme discrimination reveal the origin of individual differences in learning the sounds of a second language
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