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Functional brain activation differences in stuttering identified with a rapid fMRI sequence.

Torrey Loucks1, Shelly Jo Kraft, Ai Leen Choo

  • 1Speech and Hearing Sciences, University of Illinois, Champaign, IL 61820, United States. tloucks@uiuc.edu

Journal of Fluency Disorders
|December 3, 2011
PubMed
Summary
This summary is machine-generated.

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Rapid functional MRI (fMRI) identified distinct brain activity in adults who stutter (AWS) during speech tasks. These findings support using time-efficient fMRI for studying stuttering in children.

Area of Science:

  • Neuroimaging
  • Speech and Language Sciences
  • Developmental Neuroscience

Background:

  • Persistent developmental stuttering affects speech fluency.
  • Understanding the neural underpinnings of stuttering is crucial for developing interventions.
  • Current neuroimaging methods may be time-intensive for certain populations.

Purpose of the Study:

  • To investigate brain activity differences in adults who stutter (AWS) using rapid functional MRI (fMRI).
  • To assess the feasibility of time-efficient fMRI sequences for studying stuttering.
  • To lay the groundwork for applying these methods to children who stutter.

Main Methods:

  • Employed rapid fMRI sequences (3-minute scans).
  • Utilized picture naming and phoneme monitoring tasks.

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  • Compared brain BOLD activity between AWS and normally fluent adults.

    • Main Results:

    • AWS exhibited higher BOLD activity in the right inferior frontal gyrus (IFG), right temporal lobe, and sensorimotor cortices during picture naming.
    • AWS showed increased activity in the right IFG during phoneme monitoring.
    • Observed right-lateralized brain activity patterns consistent with prior research.

    Conclusions:

    • Rapid fMRI sequences can detect relevant brain differences in AWS.
    • These time-efficient approaches are promising for investigating stuttering in younger populations.
    • The findings support the potential of fMRI for understanding developmental stuttering.