Research demonstrates that listening to and viewing speech excites tongue and lip motor areas involved in speech production. This perceptual-motor relationship was investigated behaviourally by presenting video clips of a speaker producing vowel-consonant-vowel syllables in three conditions: visual-only, audio-only, and audiovisual. Participants identified target letters that were flashed over the mouth during the video, either manually or verbally as quickly as possible. Verbal responses were fastest when the target matched the speech stimuli in all modality conditions, yet optimal facilitation was observed when participants were presented with visual-only stimuli. Critically, no such facilitation occurred when participants were asked to identify the target manually. Our findings support previous research suggesting a close relationship between speech perception and production by demonstrating that viewing speech can 'prime' our motor system for subsequent speech production.
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http://dx.doi.org/10.1007/s00221-009-1765-x | DOI Listing |
J Med Internet Res
January 2025
Knight Foundation of Computing & Information Sciences, Florida International University, Miami, FL, United States.
Background: Digital biomarkers are increasingly used in clinical decision support for various health conditions. Speech features as digital biomarkers can offer insights into underlying physiological processes due to the complexity of speech production. This process involves respiration, phonation, articulation, and resonance, all of which rely on specific motor systems for the preparation and execution of speech.
View Article and Find Full Text PDFJ Exp Psychol Learn Mem Cogn
December 2024
University at Buffalo, The State University of New York, Department of Psychology.
Speech intonation conveys a wealth of linguistic and social information, such as the intention to ask a question versus make a statement. However, due to the considerable variability in our speaking voices, the mapping from meaning to intonation can be many-to-many and often ambiguous. Previous studies suggest that the comprehension system resolves this ambiguity, at least in part, by adapting to recent exposure.
View Article and Find Full Text PDFHeliyon
January 2025
Department of Clinical Psychology, School of Behavioral Sciences and Mental Health (Tehran Institute of Psychiatry), Iran University of Mental Science, Tehran, Iran.
Background: Autistic children often face difficulties with semantic skills such as receptive lexicon. Games based on behavioral principles have been emphasized for treating autistic children. Serious Games are a new and effective way to alleviate deficits in autistic children.
View Article and Find Full Text PDFCommun Biol
January 2025
School of Psychology, Shenzhen University, Shenzhen, China.
Speech processing involves a complex interplay between sensory and motor systems in the brain, essential for early language development. Recent studies have extended this sensory-motor interaction to visual word processing, emphasizing the connection between reading and handwriting during literacy acquisition. Here we show how language-motor areas encode motoric and sensory features of language stimuli during auditory and visual perception, using functional magnetic resonance imaging (fMRI) combined with representational similarity analysis.
View Article and Find Full Text PDFDiagnostics (Basel)
December 2024
GITA Lab., Faculty of Engineering, University of Antioquia, Medellín 050010, Colombia.
Background/objectives: Parkinson's disease (PD) affects more than 6 million people worldwide. Its accurate diagnosis and monitoring are key factors to reduce its economic burden. Typical approaches consider either speech signals or video recordings of the face to automatically model abnormal patterns in PD patients.
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