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Evoking artificial speech perception through invasive brain stimulation for brain-computer interfaces: current

Yirye Hong1, Seokyun Ryun2, Chun Kee Chung2

  • 1Department of Brain and Cognitive Sciences, College of Natural Sciences, Seoul National University, Seoul, Republic of Korea.

Frontiers in Neuroscience
|July 11, 2024
PubMed
Summary

This study explores inducing artificial speech perception via brain stimulation, a key challenge for brain-computer interfaces (BCI). Overcoming this could revolutionize communication for speech-impaired individuals.

Keywords:
artificial perceptionbrain-computer interfacesdirect cortical stimulationelectrocorticography (ECoG)invasive brain stimulationspeech processing

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Area of Science:

  • Neuroscience
  • Biomedical Engineering
  • Cognitive Science

Background:

  • Brain stimulation has a 70-year history in clinical functional mapping for neurological disorders.
  • Recent advances utilize direct electrical stimulation to evoke sensorimotor, auditory, visual, and speech perceptions.

Purpose of the Study:

  • To investigate the potential of brain stimulation for evoking artificial speech perception.
  • To explore the challenges and prospects of speech encoding in brain-computer interfaces (BCI).

Main Methods:

  • Review of various stimulation techniques for evoking complex percepts.
  • Identification of target brain areas for speech-like information input.

Main Results:

  • Inducing artificial speech perception remains largely unexplored despite advances in other perceptions.
  • Potential exists to revolutionize communication for individuals with speech disorders.

Conclusions:

  • Further research is needed to address challenges in speech encoding for BCIs.
  • Developing artificial speech perception through brain stimulation holds significant promise for BCI technology.