# Psychophysiology of childhood stuttering: Cognitive-emotional mechanisms

> **NIH NIH R21** · VANDERBILT UNIVERSITY MEDICAL CENTER · 2021 · $39,500

## Abstract

Project Summary
 Stuttering occurs in approximately 1% of the population and can significantly impact children's social,
emotional, educational, and vocational development. Numerous empirical studies and theoretical perspectives
have linked emotion to the onset and/or the development of childhood stuttering, but the precise role of
emotion within the causal nexus of stuttering has yet to be determined. To date, these studies have shown
that young children who stutter (CWS), compared to children who do not stutter (CWNS), differ in emotional
temperament and behavioral responses to arousing situations. Critically, temperamental characteristics of
negative emotional reactivity have recently been linked to an increased risk for stuttering persistence.
However, the field currently lacks replicable objective markers as well as a systematic understanding of
possible neurophysiologic mechanisms of emotional contributions to stuttering. This gap in our knowledge
represents an important problem, because it appreciably restricts our ability to develop emotion-related
markers of risk for stuttering onset and persistence and develop innovative diagnostic/therapeutic approaches.
 To address these issues, the present application is designed to: (1) determine emotion-related cortical
and autonomic markers of risk for stuttering, and (2) empirically examine the impact of emotion on cognitive
control (inhibition, execution), processes employed in linguistic planning and speech-motor control that may be
vulnerable to emotional interference. The present proposal's central hypothesis is that increases in
emotion reactivity interfere with cognitive control processes necessary for the early development of
fluent speech-language planning and production. The psychophysiological biomarkers of these cognitive-
emotion mechanisms will be tested via three specific aims: (1) to test for differences in cortical and autonomic
biomarkers of emotion between CWS and CWNS, (2) to determine the impact of emotional arousal on
cognitive control performance in CWS and CWNS, and (3) to examine the relation of emotional arousal and
cognitive control performance to CWS's stuttering frequency. For all three aims, the PI will employ well-
established methods in speech-language science, cognitive neuroscience, and psychophysiology.
 The proposed study is innovative in that it represents the first project to systematically explore
psychophysiological biomarkers of cognitive-emotional mechanisms in early childhood stuttering using a
multi-method approach. The proposed project is significant because findings will significantly impact our
empirically-based understanding of childhood stuttering, and may lead to translational studies attempting to
facilitate and enhance assessment and treatment of childhood stuttering. For example, physiological cognitive-
emotional markers may confer risk for persistent stuttering, and may lead to the development of novel
treatment approaches tailored to the indi...

## Key facts

- **NIH application ID:** 10390640
- **Project number:** 3R21DC016723-03S1
- **Recipient organization:** VANDERBILT UNIVERSITY MEDICAL CENTER
- **Principal Investigator:** Robin Michael Jones
- **Activity code:** R21 (R01, R21, SBIR, etc.)
- **Funding institute:** NIH
- **Fiscal year:** 2021
- **Award amount:** $39,500
- **Award type:** 3
- **Project period:** 2018-07-05 → 2021-09-30

## Primary source

NIH RePORTER: https://reporter.nih.gov/project-details/10390640

## Citation

> US National Institutes of Health, RePORTER application 10390640, Psychophysiology of childhood stuttering: Cognitive-emotional mechanisms (3R21DC016723-03S1). Retrieved via AI Analytics 2026-05-25 from https://api.ai-analytics.org/grant/nih/10390640. Licensed CC0.

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