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Electrophysiological Evidence for Top-Down Lexical Influences on Early Speech Perception ...
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GetzSupplementalMaterial_rev – Supplemental material for Electrophysiological Evidence for Top-Down Lexical Influences on Early Speech Perception ...
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GetzSupplementalMaterial_rev – Supplemental material for Electrophysiological Evidence for Top-Down Lexical Influences on Early Speech Perception ...
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Electrophysiological Evidence for Top-Down Lexical Influences on Early Speech Perception ...
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Reassessing the electrophysiological evidence for categorical perception of Mandarin lexical tone: ERP evidence from native and naïve non-native Mandarin listeners [<Journal>]
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DNB Subject Category Language
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The time-course of cortical responses to speech revealed by fast optical imaging
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The time-course of speaking rate compensation: Effects of sentential rate and vowel length on voicing judgments
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Cue integration and context effects in speech: Evidence against speaking rate normalization
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Cue integration with categories: Weighting acoustic cues in speech using unsupervised learning and distributional statistics
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Continuous perception and graded categorization: Electrophysiological evidence for a linear relationship between the acoustic signal and perceptual encoding of speech
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Abstract:
Speech sounds are highly variable, yet listeners readily extract information from them and transform continuous acoustic signals into meaningful categories during language comprehension. A central question is whether perceptual encoding captures continuous acoustic detail in a one-to-one fashion or whether it is affected by categories. We addressed this in an event-related potential (ERP) experiment in which listeners categorized spoken words that varied along a continuous acoustic dimension (voice onset time; VOT) in an auditory oddball task. We found that VOT effects were present through a late stage of perceptual processing (N1 component, ca. 100 ms poststimulus) and were independent of categories. In addition, effects of within-category differences in VOT were present at a post-perceptual categorization stage (P3 component, ca. 450 ms poststimulus). Thus, at perceptual levels, acoustic information is encoded continuously, independent of phonological information. Further, at phonological levels, fine-grained acoustic differences are preserved along with category information.
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URL: http://www.ncbi.nlm.nih.gov/pubmed/20935168 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3523688 https://doi.org/10.1177/0956797610384142
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Statistical learning of phonetic categories: Insights from a computational approach
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Integrating Connectionist Learning and Dynamic Processing: Case Studies in Speech and Lexical Development
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