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Altered functional connectivity during speech perception in Congenital Amusia
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Abstract:
Individuals with congenital amusia have a lifelong history of unreliable pitch processing. Accordingly, they downweight pitch cues during speech perception and instead rely on other dimensions such as duration. We investigated the neural basis for this strategy. During fMRI, individuals with amusia (N=15) and controls (N=15) read sentences where a comma indicated a grammatical phrase boundary. They then heard two sentences spoken that differed only in pitch and/or duration cues, and selected the best match for the written sentence. Prominent reductions in functional connectivity were detected in the amusia group, between left prefrontal language-related regions and right hemisphere pitch-related regions, which reflected the between-group differences in cue weights in the same groups of listeners. Connectivity differences between these regions were not present during a control task. Our results indicate that the reliability of perceptual dimensions is linked with functional connectivity between frontal and perceptual regions, and suggest a compensatory mechanism.
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Keyword:
Psychological Sciences
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URL: https://doi.org/10.7554/eLife.53539
https://eprints.bbk.ac.uk/id/eprint/40549/
https://eprints.bbk.ac.uk/id/eprint/40549/1/elife-53539-v1.pdf
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| 2 |
Tailored perception: individuals’ speech and music perception strategies fit their perceptual abilities
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| 3 |
Speech-in-speech perception, non-verbal selective attention, and musical training
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What underlies the emergence of stimulus- and domain-specific neural responses? Commentary on Hernandez, Claussenius-Kalman, Ronderos, Castilla-Earls, Sun, Weiss, & Young (2018)
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| 5 |
Dimension-selective attention as a possible driver of dynamic, context-dependent re-weighting in speech processing
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| 6 |
Neural representation of vowel formants in tonotopic auditory cortex
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| 7 |
Fractionating nonword repetition: the contributions of short-term memory and oromotor praxis are different
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| 8 |
Functional and quantitative MRI mapping of somatomotor representations of human supralaryngeal vocal tract
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| 11 |
Convergent and divergent fMRI responses in children and adults to increasing language production demands
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| 12 |
Generalization of auditory sensory and cognitive learning in typically developing children
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| 13 |
Williams syndrome: a surprising deficit in oromotor praxis in a population with proficient language production
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| 15 |
Audio-visual speech perception: a developmental ERP investigation
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Articulating novel words: children's oromotor skills predict non-word repetition abilities
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| 17 |
Pitch-change detection and pitch-direction discrimination in children
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| 18 |
School-age children’s environmental object identification in natural auditory scenes: effects of masking and contextual congruence
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| 19 |
A bilingual advantage in controlling language interference during sentence comprehension
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| 20 |
Action and object processing across three tasks: an fMRI study of picture-naming, word reading and repetition in Italian
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