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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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Effects of type, token, and talker variability in speech processing efficiency
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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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Abstract:
Speech processing is slower and less accurate when listeners encounter speech from multiple talkers compared to one continuous talker. However, interference from multiple talkers has been investigated only using immediate speech recognition or long-term memory recognition tasks. These tasks reveal opposite effects of speech processing time on speech recognition—while fast processing of multi-talker speech impedes immediate recognition, it also results in more abstract and less talker-specific long-term memories for speech. Here, we investigated whether and how processing multi-talker speech disrupts working memory maintenance, an intermediate stage between perceptual recognition and long-term memory. In a digit sequence recall task, listeners encoded seven-digit sequences and recalled them after a 5-s delay. Sequences were spoken by either a single talker or multiple talkers at one of three presentation rates (0, 200, and 500-ms inter-digit intervals). Listeners’ recall was slower and less accurate for sequences spoken by multiple talkers than a single talker. Especially for the fastest presentation rate, listeners were less efficient when recalling sequences spoken by multiple talkers. Our results reveal that talker-specificity effects for speech working memory are most prominent when listeners must rapidly encode speech. These results suggest that, like immediate speech recognition, working memory for speech is susceptible to interference from variability across talkers. While many studies ascribe effects of talker variability to the need to calibrate perception to talker-specific acoustics, these results are also consistent with the idea that a sudden change of talkers disrupts attentional focus, interfering with efficient working memory processing.
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Keyword:
Article
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URL: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6752734/
http://www.ncbi.nlm.nih.gov/pubmed/30737757
https://doi.org/10.3758/s13414-019-01684-w
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Hierarchical contributions of linguistic knowledge to talker identification: Phonological vs. lexical familiarity
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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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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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