Scholarlink

<p>Personalized auditory gamma stimulation may sharpen human cognition; however, behavioral evidence remains sparse. Here, we recruited 29 healthy adults (15 men; age range, 20–49 years) with no self-reported history of psychiatric disorders, and identified each participant’s dominant gamma frequency (IGF), and then investigated whether auditory stimulation at that frequency—delivered through individualized IGF music—modulated cognitive performance. We first estimated each participant’s IGF based on electroencephalogram during a 5‑min chirp‑music sweep. The identified frequency was embedded into a musical track (IGF music); a spectrally matched track lacking gamma enhancement served as control music. Participants completed five immediate recall trials and a long-delay-free recall of a verbal learning task, a visual change‑detection task, a card matching game, and a bivalent shape task while listening to either music track (within‑subject). Linear mixed-effects models revealed that IGF music increased word recall in the fifth immediate recall trial and reduced inverse efficiency in incongruent trials of the bivalent-shaped task, whereas other outcomes were unchanged. Therefore, auditory gamma stimuli may improve short-term memory and executive control. These findings highlight the potential of individualized sensory stimulation as a promising, non-invasive approach to ameliorate cognitive impairments associated with various neuropsychiatric and neurodegenerative disorders.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Auditory stimulation at individual gamma frequency enhances cognitive performance

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年11月5日

查看全文
  • Yusuke Yokota,
  • Kenta Tanaka,
  • Ming Chang,
  • Shin Koike,
  • Shinya Fujii,
  • Yasushi Naruse,
  • Yasuhiko Imamura

摘要

Personalized auditory gamma stimulation may sharpen human cognition; however, behavioral evidence remains sparse. Here, we recruited 29 healthy adults (15 men; age range, 20–49 years) with no self-reported history of psychiatric disorders, and identified each participant’s dominant gamma frequency (IGF), and then investigated whether auditory stimulation at that frequency—delivered through individualized IGF music—modulated cognitive performance. We first estimated each participant’s IGF based on electroencephalogram during a 5‑min chirp‑music sweep. The identified frequency was embedded into a musical track (IGF music); a spectrally matched track lacking gamma enhancement served as control music. Participants completed five immediate recall trials and a long-delay-free recall of a verbal learning task, a visual change‑detection task, a card matching game, and a bivalent shape task while listening to either music track (within‑subject). Linear mixed-effects models revealed that IGF music increased word recall in the fifth immediate recall trial and reduced inverse efficiency in incongruent trials of the bivalent-shaped task, whereas other outcomes were unchanged. Therefore, auditory gamma stimuli may improve short-term memory and executive control. These findings highlight the potential of individualized sensory stimulation as a promising, non-invasive approach to ameliorate cognitive impairments associated with various neuropsychiatric and neurodegenerative disorders.