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Speech motor facilitation is not affected by ageing but is modulated by task demands during speech perception
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Visual cues in adaptation to noise-vocoded speech (Trotter et al., 2021) ...
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Visual cues in adaptation to noise-vocoded speech (Trotter et al., 2021) ...
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The causal role of left and right superior temporal gyri in speech perception in noise:A Transcranial Magnetic Stimulation Study
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Effects of stimulus response compatibility on covert imitation of vowels
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Modulation of intra- and inter-hemispheric connectivity between primary and premotor cortex during speech perception
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Abstract:
Primary motor (M1) areas for speech production activate during speech perception. It has been suggested that such activation may be dependent upon modulatory inputs from premotor cortex (PMv). If and how PMv differentially modulates M1 activity during perception of speech that is easy or challenging to understand, however, is unclear. This study aimed to test the link between PMv and M1 during challenging speech perception in two experiments. The first experiment investigated intra-hemispheric connectivity between left hemisphere PMv and left M1 lip area during comprehension of speech under clear and distorted listening conditions. Continuous theta burst stimulation (cTBS) was applied to left PMv in eighteen participants (aged 18–35). Post-cTBS, participants performed a sentence verification task on distorted (imprecisely articulated), and clear speech, whilst also undergoing stimulation of the lip representation in the left M1 to elicit motor evoked potentials (MEPs). In a second, separate experiment, we investigated the role of inter-hemispheric connectivity between right hemisphere PMv and left hemisphere M1 lip area. Dual-coil transcranial magnetic stimulation was applied to right PMv and left M1 lip in fifteen participants (aged 18–35). Results indicated that disruption of PMv during speech perception affects comprehension of distorted speech specifically. Furthermore, our data suggest that listening to distorted speech modulates the balance of intra- and inter-hemispheric interactions, with a larger sensorimotor network implicated during comprehension of distorted speech than when speech perception is optimal. The present results further understanding of PMv-M1 interactions during auditory-motor integration.
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URL: https://eprints.lancs.ac.uk/id/eprint/89590/ https://doi.org/10.1016/j.bandl.2017.12.002 https://eprints.lancs.ac.uk/id/eprint/89590/1/B_L_manuscript_HNuttall_R2_unmarked_final_1_.pdf
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Effects of stimulus response compatibility on covert imitation of vowels
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Transcranial magnetic stimulation and motor evoked potentials in speech perception research
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The role of hearing ability and speech distortion in the facilitation of articulatory motor cortex
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Vocal Tract Images Reveal Neural Representations of Sensorimotor Transformation During Speech Imitation
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The effect of speech distortion on the excitability of articulatory motor cortex
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Does musical enrichment enhance the neural coding of syllables?:neuroscientific interventions and the importance of behavioral data
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Does musical enrichment enhance the neural coding of syllables? Neuroscientific interventions and the importance of behavioral data
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The role of accent imitation in sensorimotor integration during processing of intelligible speech
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The role of accent imitation in sensorimotor integration during processing of intelligible speech
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On-line plasticity in spoken sentence comprehension: Adapting to time-compressed speech
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