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Related Experiment Video

Updated: Jun 20, 2026

Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology
05:38

Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology

Published on: June 29, 2021

Speech-induced blepharospasm.

Davide Martino1, Maria Stella Aniello, Loredana Catalano

  • 1Department of Neurological and Psychiatric Sciences, University of Bari, Piazza Giulio Cesare 11, 70124, Bari, Italy.

Neurological Sciences : Official Journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology
|September 26, 2009
PubMed
Summary
This summary is machine-generated.

Primary blepharospasm can be triggered by voiced speech in rare cases. This speech-induced condition may involve abnormal neural connections between speech and eye muscles.

Related Experiment Videos

Last Updated: Jun 20, 2026

Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology
05:38

Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology

Published on: June 29, 2021

Area of Science:

  • Neurology
  • Movement Disorders

Background:

  • Primary blepharospasm is a common adult-onset focal dystonia.
  • Typical blepharospasm presents at rest and is exacerbated by light, stress, or eye movements.

Observation:

  • This study reports two patients with primary blepharospasm unusually triggered by voiced speech.
  • This speech-induced blepharospasm was associated with dystonia in other facial or limb muscles.

Findings:

  • Speech-induced primary blepharospasm is a rare variant, found in 1.3% of patients.
  • This suggests abnormal cortical inhibition between laryngeal and eye muscle representations.

Implications:

  • Understanding this atypical presentation can aid in diagnosing primary blepharospasm.
  • It highlights potential neural crosstalk in focal dystonias.