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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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The causal role of left and right superior temporal gyri in speech perception in noise:A Transcranial Magnetic Stimulation Study
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Modulation of intra- and inter-hemispheric connectivity between primary and premotor cortex during speech perception
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The role of hearing ability and speech distortion in the facilitation of articulatory motor cortex
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Abstract:
Excitability of articulatory motor cortex is facilitated when listening to speech in challenging conditions. Beyond this, however, we have little knowledge of what listener-specific and speech-specific factors engage articulatory facilitation during speech perception. For example, it is unknown whether speech motor activity is independent or dependent on the form of distortion in the speech signal. It is also unknown if speech motor facilitation is moderated by hearing ability. We investigated these questions in two experiments. We applied transcranial magnetic stimulation (TMS) to the lip area of primary motor cortex (M1) in young, normally hearing participants to test if lip M1 is sensitive to the quality (Experiment 1) or quantity (Experiment 2) of distortion in the speech signal, and if lip M1 facilitation relates to the hearing ability of the listener. Experiment 1 found that lip motor evoked potentials (MEPs) were larger during perception of motor-distorted speech that had been produced using a tongue depressor, and during perception of speech presented in background noise, relative to natural speech in quiet. Experiment 2 did not find evidence of motor system facilitation when speech was presented in noise at signal-to-noise ratios where speech intelligibility was at 50% or 75%, which were significantly less severe noise levels than used in Experiment 1. However, there was a significant interaction between noise condition and hearing ability, which indicated that when speech stimuli were correctly classified at 50%, speech motor facilitation was observed in individuals with better hearing, whereas individuals with relatively worse but still normal hearing showed more activation during perception of clear speech. These findings indicate that the motor system may be sensitive to the quantity, but not quality, of degradation in the speech signal. Data support the notion that motor cortex complements auditory cortex during speech perception, and point to a role for the motor cortex in compensating for differences in hearing ability.
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URL: https://eprints.lancs.ac.uk/id/eprint/83052/2/Neuropsychologia_Manuscript_HENuttall_Revision3.pdf
https://doi.org/10.1016/j.neuropsychologia.2016.11.016
https://eprints.lancs.ac.uk/id/eprint/83052/
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Stimulating Multiple-Demand Cortex Enhances Vocabulary Learning
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Stimulating Multiple-Demand Cortex Enhances Vocabulary Learning
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The effect of speech distortion on the excitability of articulatory motor cortex
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How Early Does the Brain Distinguish between Regular Words, Irregular Words, and Pseudowords during the Reading Process? Evidence from Neurochronometric TMS
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In: ISSN: 0898-929X ; EISSN: 1530-8898 ; Journal of Cognitive Neuroscience ; https://hal.archives-ouvertes.fr/hal-01485314 ; Journal of Cognitive Neuroscience, Massachusetts Institute of Technology Press (MIT Press), 2015, Vol. 27 n° 6, pp.1259-1274. ⟨10.1162/jocn_a_00779⟩ (2015)
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Roles of frontal and temporal regions in reinterpreting semantically ambiguous sentences
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Inter- and Intrahemispheric Connectivity Differences When Reading Japanese Kanji and Hiragana
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Inter- and Intrahemispheric Connectivity Differences When Reading Japanese Kanji and Hiragana
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Inter- and Intrahemispheric Connectivity Differences When Reading Japanese Kanji and Hiragana
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The Neural Representation of Abstract Words: The Role of Emotion
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Early and Sustained Supramarginal Gyrus Contributions to Phonological Processing
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Contribution and chronometry of left ventral occipito-temporal cortex and posterior middle temporal gyrus in reading: Evidence from transcranial magnetic stimulation
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In: 10th International Symposium of Psycholinguistics ; https://hal.archives-ouvertes.fr/hal-01728428 ; 10th International Symposium of Psycholinguistics, 2011, San Sebastian, Spain (2011)
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Top-down modulation of ventral occipito-temporal responses during visual word recognition
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How Does Learning to Read Affect Speech Perception?
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In: ISSN: 0270-6474 ; EISSN: 1529-2401 ; Journal of Neuroscience ; https://hal.archives-ouvertes.fr/hal-01728068 ; Journal of Neuroscience, Society for Neuroscience, 2010, 30 (25), pp.8435 - 8444. ⟨10.1523/JNEUROSCI.5791-09.2010⟩ (2010)
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