Closed-loop auditory stimulation of slow-wave sleep in chronic insomnia: a pilot study
Summary
This crossover, sham-controlled pilot study explored closed-loop auditory stimulation (CLAS) in 27 patients with chronic insomnia. In patients who received sufficient stimulation, CLAS led to significant immediate increases in slow oscillation amplitude and activity, and reduced delta and spindle activity during slow-wave sleep. However, substantial variance in stimulation efficacy was observed.
Why it matters
Insomnia is highly prevalent yet often poorly treated. This study demonstrates that CLAS is feasible in insomnia patients and acutely modulates key sleep oscillations involved in memory consolidation. The high variance in stimulation delivery highlights the need for personalized stimulation protocols to maximize clinical benefit in sleep disorders.
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