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Related Experiment Video

Updated: Aug 31, 2025

Exploring the Use of Isolated Expressions and Film Clips to Evaluate Emotion Recognition by People with Traumatic Brain Injury
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Emotion expression through spoken language in Huntington disease.

Charlotte Gallezot1, Rachid Riad1, Hadrien Titeux2

  • 1CoML/ENS/CNRS/EHESS/INRIA/PSL Research University, Paris, France; NPI/ENS/INSERM U855/UPEC/PSL Research University, Creteil, France.

Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
|August 20, 2022
PubMed
Summary

Patients with Huntington's disease (HD) struggle to express emotions vocally and linguistically. Early-stage HD patients and healthy controls show similar, unimpaired emotional expression, suggesting deficits emerge with disease progression.

Keywords:
EmotionsHuntington's diseaseMachine learningSpeech

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Area of Science:

  • Neuroscience
  • Psychology
  • Computational Linguistics

Background:

  • Huntington's disease (HD) patients exhibit impaired emotion perception.
  • Previous research focused on facial emotion expression deficits in HD.
  • Limited understanding exists regarding emotion production via spoken language in HD.

Purpose of the Study:

  • To investigate emotion expression through voice and language in Huntington's disease (HD).
  • To compare emotion expression capabilities between HD patients, pre-manifest HD participants, and healthy controls.
  • To evaluate the utility of machine learning models in assessing emotion expression.

Main Methods:

  • 115 participants (68 HD patients, 22 pre-manifest HD, 25 controls) were prospectively studied.
  • Participants recalled emotional stories (sad, angry, happy, neutral) during interviews.
  • Machine learning models assessed vocal and linguistic emotion expression identifiability in a blind design.

Main Results:

  • HD patients demonstrated significant difficulties in expressing emotions via voice and language.
  • Pre-manifest HD participants and controls exhibited similar, above-chance emotion expression.
  • No significant differences in emotion expression were found between pre-manifest HD and healthy controls.

Conclusions:

  • Emotional expression deficits in Huntington's disease affect both vocal and linguistic channels.
  • Impaired sensori-motor representations of emotions may underlie these deficits, aligning with embodied cognition theories.
  • Machine learning offers a reproducible method for assessing emotion expression in clinical populations.