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Auditory stimulation at individual gamma frequency enhances cognitive performance.

Yusuke Yokota1, Kenta Tanaka2, Ming Chang2

  • 1VIE, Inc., Treasurefoot Building, 1-9-22, Oomatchi, Kamakura, 248-0007, Kanagawa, Japan. yokota@vie.style.

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|November 5, 2025
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Summary

Personalized auditory gamma stimulation, using individualized dominant gamma frequency (IGF) music, enhanced short-term memory and executive control in healthy adults. This non-invasive approach shows potential for cognitive impairment treatment.

Keywords:
Auditory steady-state responseElectroencephalogramGamma stimulationIndividual gamma frequency

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Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Auditory Stimulation

Background:

  • Personalized auditory gamma stimulation shows potential for cognitive enhancement.
  • Behavioral evidence supporting this effect is limited.
  • Individualized dominant gamma frequency (IGF) is a key parameter.

Purpose of the Study:

  • To investigate the impact of individualized auditory gamma stimulation on cognitive performance.
  • To determine if music embedded with a participant's IGF can modulate cognition.
  • To explore potential non-invasive methods for cognitive improvement.

Main Methods:

  • Recruited 29 healthy adults.
  • Determined each participant's IGF using electroencephalogram (EEG) during a chirp-music sweep.
  • Administered cognitive tasks (verbal learning, visual change detection, card matching, bivalent shape task) while participants listened to either IGF music or control music in a within-subject design.

Main Results:

  • IGF music significantly increased word recall in the fifth immediate recall trial.
  • IGF music reduced inverse efficiency in incongruent trials of the bivalent-shaped task.
  • Other cognitive outcomes showed no significant changes.

Conclusions:

  • Auditory gamma stimuli, personalized to an individual's dominant gamma frequency, may enhance specific aspects of cognition, including short-term memory and executive control.
  • Individualized sensory stimulation represents a promising non-invasive strategy.
  • This approach holds potential for ameliorating cognitive deficits in neuropsychiatric and neurodegenerative disorders.