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Public Perception of the Brain-Computer Interface Based on a Decade of Data on X: Mixed Methods Study.

Mohammed A Almanna1,2, Lior M Elkaim3, Mohammed A Alvi4,5,6

  • 1College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia.

JMIR Formative Research
|June 25, 2025
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Summary

Public perception of brain-computer interface (BCI) technology is largely neutral but cautiously apprehensive, with anticipation, trust, and fear as dominant emotions. Addressing ethical concerns is crucial for public trust and adoption of BCI advancements.

Keywords:
BCIMann-KendallNLPNeuralinkTwitterbrain-computer interfacebrain-machine interfacedatadecadeeducationinnovationmarketingmixed methodnatural language processingpublic perceptionpublic perceptionssemanticsentimentsentiment analysissocial mediatechnology

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Area of Science:

  • Neuroscience and Artificial Intelligence
  • Human-Computer Interaction
  • Public Health Communication

Background:

  • Brain-computer interface (BCI) technologies are rapidly evolving.
  • Understanding public perception is crucial for effective communication and adoption strategies.
  • Novel BCI advancements necessitate insights into societal attitudes.

Purpose of the Study:

  • To explore public perception and sentiments towards brain-computer interface (BCI) technology.
  • To analyze discussions on X (formerly Twitter) regarding BCIs using natural language processing (NLP).
  • To identify trends, emotions, and key topics in public discourse on BCIs.

Main Methods:

  • A mixed-methods study analyzed 65,340 BCI-related posts from January 2010 to December 2021.
  • Natural language processing (NLP) techniques (VADER, TextBlob, NRCLex) quantified sentiment, subjectivity, and emotions.
  • Mann-Kendall trend test examined temporal dynamics; Sentiment.ai and BERTopic analyzed demographics and semantic topics.

Main Results:

  • BCI discussions surged in 2017, linked to Neuralink's announcement.
  • Public sentiment was 59.38% neutral, 32.75% positive, and 7.85% negative, with a generally positive trend over time.
  • Anticipation, trust, and fear were the most prominent emotions, with Neuralink and practical applications as key topics.

Conclusions:

  • Public perception of BCI is neutral yet apprehensive, highlighting the need to address ethical concerns like data privacy and safety.
  • Transparent communication and ethical considerations are vital for building public trust.
  • Gamification and positive clinical outcomes can enhance public engagement and adoption of BCI technologies.