ArticleJournal of speech, language, and hearing research : JSLHR2013
Left lateralized enhancement of orofacial somatosensory processing due to speech sounds.
Article in Journal of speech, language, and hearing research : JSLHR, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Beta rhythm modulation by speech sounds: somatotopic mapping in somatosensory cortex.Scientific reports · 2016Trial
- Towards a somatosensory theory of speech perception.Journal of neurophysiology · 2022Review
- Somatosensory Event-related Potentials from Orofacial Skin Stretch Stimulation.Journal of visualized experiments : JoVE · 2015Article
- Temporal factors affecting somatosensory-auditory interactions in speech processing.Frontiers in psychology · 2014Article
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Authors and funding
3 authors.
Funding
Abstract
purposeSomatosensory information associated with speech articulatory movements affects the perception of speech sounds and vice versa, suggesting an intimate linkage between speech production and perception systems. However, it is unclear which cortical processes are involved in the interaction between speech sounds and orofacial somatosensory inputs. The authors examined whether speech sounds modify orofacial somatosensory cortical potentials that were elicited using facial skin perturbations.
methodSomatosensory event-related potentials in EEG were recorded in 3 background sound conditions (pink noise, speech sounds, and nonspeech sounds) and also in a silent condition. Facial skin deformations that are similar in timing and duration to those experienced in speech production were used for somatosensory stimulation.
resultsThe authors found that speech sounds reliably enhanced the first negative peak of the somatosensory event-related potential when compared with the other 3 sound conditions. The enhancement was evident at electrode locations above the left motor and premotor area of the orofacial system. The result indicates that speech sounds interact with somatosensory cortical processes that are produced by speech-production-like patterns of facial skin stretch.
conclusionNeural circuits in the left hemisphere, presumably in left motor and premotor cortex, may play a prominent role in the interaction between auditory inputs and speech-relevant somatosensory processing.
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Registered trials
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