Cited by 327Neurobiology of Language and BilingualismVoice and Speech DisordersPhonetics and Phonology Research

fMRI reveals two distinct cerebral networks subserving speech motor control

Riecker, A., Mathiak, K., Wildgruber, D., Erb, M., Hertrich, I., Grodd, W., Ackermann, H.·2005·Neurology

Abstract

BACKGROUND: There are few data on the cerebral organization of motor aspects of speech production and the pathomechanisms of dysarthric deficits subsequent to brain lesions and diseases. The authors used fMRI to further examine the neural basis of speech motor control. METHODS AND RESULTS: In eight healthy volunteers, fMRI was performed during syllable repetitions synchronized to click trains (2 to 6 Hz; vs a passive listening task). Bilateral hemodynamic responses emerged at the level of the mesiofrontal and sensorimotor cortex, putamen/pallidum, thalamus, and cerebellum (two distinct activation spots at either side). In contrast, dorsolateral premotor cortex and anterior insula showed left-sided activation. Calculation of rate/response functions revealed a negative linear relationship between repetition frequency and blood oxygen level-dependent (BOLD) signal change within the striatum, whereas both cerebellar hemispheres exhibited a step-wise increase of activation at approximately 3 Hz. Analysis of the temporal dynamics of the BOLD effect found the various cortical and subcortical brain regions engaged in speech motor control to be organized into two separate networks (medial and dorsolateral premotor cortex, anterior insula, and superior cerebellum vs sensorimotor cortex, basal ganglia, and inferior cerebellum). CONCLUSION: These data provide evidence for two levels of speech motor control bound, most presumably, to motor preparation and execution processes. They also help to explain clinical observations such as an unimpaired or even accelerated speaking rate in Parkinson disease and slowed speech tempo, which does not fall below a rate of 3 Hz, in cerebellar disorders.

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Crossref · 10.1212/01.wnl.0000152156.90779.89

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  • Left lateralized activation during overt articulation is observed in the insula and dorsolateral premotor cortex, contrasted with bilateral activation in sensorimotor cortex.

    “Left lateralized activation during overt articulation was observed in the insula and the dorsolateral premotor cortex and this was contrasted to the bilateral activation in sensorimotor cortex (Riecker et al., 2005).”

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Authors
Riecker, A., Mathiak, K., Wildgruber, D., Erb, M., Hertrich, I., Grodd, W., & Ackermann, H.
Affiliations
Hertie Institute for Clinical Brain Research (DE)
Venue
Neurology
Published
2005-02-22
Volume
64
Issue
4
Pages
700-706
ISSN
  • 0028-3878 (ISSN-L)
  • 1526-632X
OpenAlex
W2030232282
Cited by
327
References
43
Citations by year
2026: 9 · 2025: 14 · 2024: 9 · 2023: 14 · 2022: 8 · 2021: 9 · 2020: 10 · 2019: 13 · 2018: 10 · 2017: 12 · 2016: 22 · 2015: 26 · 2014: 16 · 2013: 22 · 2012: 20
FWCI
6.75
Type
journal article
Language
en
Open access
closed
Locations
  • Neurology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neurobiology of Language and Bilingualism
  • Health Sciences › Medicine › Physiology › Voice and Speech Disorders
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Phonetics and Phonology Research
Keywords
speech motor control, syllable repetition, click trains, anterior insula, cerebellum, basal ganglia, sensorimotor cortex, dysarthria
MeSH terms
Adolescent, Adult, Brain Mapping, Cerebellum, Cerebral Cortex, Dominance, Cerebral, Female, Frontal Lobe, Globus Pallidus, Humans, Magnetic Resonance Imaging, Male, Motor Cortex, Phonation, Putamen, Reference Values, Somatosensory Cortex, Speech, Subtraction Technique, Thalamus, Artifacts, Prefrontal Cortex

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