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Related Experiment Video

Updated: Jun 23, 2026

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Reverse effect of home-use binaural beats brain stimulation.

Michal Klichowski1,2, Andrzej Wicher3,4, Agnieszka Kruszwicka3,5

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Summary

Binaural beats brain stimulation may harm cognitive performance, contrary to popular belief. A study found these sounds, regardless of user expectation, significantly worsened fluid intelligence test scores.

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Area of Science:

  • Neuroscience
  • Cognitive Psychology

Background:

  • Binaural beats are widely used for home-based cognitive enhancement.
  • The efficacy of binaural beats is often attributed to placebo effects, questioning their direct impact on cognition.

Purpose of the Study:

  • To investigate the actual effect of binaural beats on fluid intelligence in a home setting.
  • To determine if user expectations influence the outcome of binaural beats stimulation.

Main Methods:

  • 1000 participants completed a two-part fluid intelligence test at home.
  • Experimental groups listened to binaural beats, silence, or other sounds during the second part.
  • Binaural beats subgroups received different information about the sounds' purported effects.

Main Results:

  • Binaural beats significantly impaired cognitive performance across all conditions.
  • No significant effect was observed for silence or other non-binaural beat sounds.
  • Participant expectations did not alter the detrimental impact of binaural beats.

Conclusions:

  • Home-use binaural beats brain stimulation can negatively affect cognitive functions.
  • The perceived benefits of binaural beats may be largely due to the placebo effect, while actual use can be detrimental.