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Efficient localization of the cortical language network and its functional neuroanatomy in dyslexia
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Examining morphological differences in Heschl's gyrus between neurotypical and dyslexic brains
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Selecting among competing models of talker adaptation: Attention, cognition, and memory in speech processing efficiency
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In: Cognition (2020)
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Noninvasive neurostimulation of left ventral motor cortex enhances sensorimotor adaptation in speech production
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In: Brain Lang (2020)
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| 10 |
Effects of type, token, and talker variability in speech processing efficiency
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Abstract:
Phonetic variability across talkers imposes additional processing costs during speech perception, evident in performance decrements for mixed- vs. single-talker speech. However, within-talker phonetic variation across different utterances is another, relatively unexplored source of variability in speech, and it is unknown how processing costs from within-talker variation compare to those from between-talker variation. Because cognitive consequences of talker variability are typically measured from two-alternative forced- choice tasks, whereas naturalistic speech processing occurs in a much larger decision space, it is also unclear how the effects of across-talker and within-talker variability scale and interact when there are more options to choose between during word identification. Here, we measured response times in a speeded word identification task that factorially manipulated three dimensions of speech variability: number of talkers (one vs. four), number of target word choices (two vs. six), and number of talker-specific exemplars per word (one vs. eight). Across all eight experimental levels, larger decision spaces led to significantly slower word identification. Word identification was also slower in conditions with mixed talkers and conditions with multiple exemplars. However, performance decrements between mixed- vs. single-talker speech were only present when variability in the other two dimensions was low, but decrements between multi- vs. single-token speech were present under all conditions. This pattern of interactions suggests complex processing relationships between type, token, and talker variability and provides preliminary evidence for how both within- and between-talker variability impose additional processing costs in speech perception.
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Keyword:
Speech therapy
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URL: https://hdl.handle.net/2144/38729
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| 11 |
Common cortical architectures for phonological working memory identified in individual brains
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In: Neuroimage (2019)
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Time and information in perceptual adaptation to speech
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In: Cognition (2019)
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Acoustic and linguistic factors affecting perceptual dissimilarity judgments of voices
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In: J Acoust Soc Am (2019)
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| 14 |
Effects of talker continuity and speech rate on auditory working memory
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| 15 |
Hierarchical contributions of linguistic knowledge to talker identification: Phonological vs. lexical familiarity
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| 16 |
Persistent Neurobehavioral Markers of Developmental Morphosyntax Errors in Adults
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In: J Speech Lang Hear Res (2019)
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Noninvasive neurostimulation of left temporal lobe disrupts rapid talker adaptation in speech processing
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In: Brain Lang (2019)
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| 18 |
Effects of early language experiences on the auditory brainstem
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Sensorimotor adaptation to auditory perturbation of speech is facilitated by noninvasive brain stimulation
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Varying acoustic-phonemic ambiguity reveals that talker normalization is obligatory in speech processing
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