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September 5, 2025Open Access

A stereoencephalography study of internal speech

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Authors

ANAlexey NaumovDartmouth CollegeGSGurgen SoghoyanSkolkovo Institute of Science and TechnologyAMAnna MakarovaMoscow State University

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Overview

Observational study reveals distinct spectral modulations in internal and overt speech, highlighting BCI utility.

Key Points

  • Imagined speech demonstrated unique neural activity, distinguishing it from overt and articulated speech.
  • The average accuracy of 72% was achieved in differentiating three speech conditions based on spectral profiles.
  • Analysis showed distinct spectral modulations in alpha and gamma bands across temporal and frontal regions.
  • Findings indicate that stereoencephalography can effectively decode covert speech, aiding communication restoration.

Cite This Study

Naumov et al. (2025) studied this question.

synapsesocial.com/papers/68bb4de86d6d5674bcd01851https://doi.org/10.21203/rs.3.rs-7306546/v1
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