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Updated: May 12, 2026

Multi-Modal Home Sleep Monitoring in Older Adults
Published on: January 26, 2019
Enhancing sleep quality and memory in insomnia using instrumental sensorimotor rhythm conditioning
Manuel Schabus1, Dominik P J Heib2, Julia Lechinger2
1Laboratory for Sleep, Cognition and Consciousness Research, Department of Psychology, University of Salzburg, Austria; Center for Neurocognitive Research, University of Salzburg, Austria.
Instrumental conditioning of sensorimotor rhythm (SMR) during wakefulness improved sleep quality and reduced awakenings in individuals with insomnia. This SMR training also enhanced overnight memory consolidation, suggesting a potential non-pharmacological treatment.
Area of Science:
- Neuroscience
- Sleep Medicine
- Cognitive Psychology
Background:
- Sensorimotor rhythm (SMR) is a prominent EEG pattern (12-15 Hz) during wakefulness and overlaps with sleep spindles.
- Insomnia is characterized by poor sleep quality and cognitive deficits.
- Instrumental conditioning offers a potential non-pharmacological approach to modulate brain activity.
Purpose of the Study:
- To investigate if instrumental conditioning of SMR during wakefulness can improve sleep and cognitive performance in patients with primary insomnia.
- To assess the effects of SMR training on sleep architecture, awakenings, and subjective sleep quality.
- To explore the association between SMR training, memory consolidation, and sleep spindle activity.
Main Methods:
- A pilot study with 24 subjects diagnosed with primary insomnia.
- Counterbalanced within-subjects design comparing SMR conditioning with a sham-conditioning control.
- Polysomnographic sleep recordings before and after ten training sessions.
- EEG analysis focused on the 12-15 Hz SMR frequency band.
Main Results:
- SMR training significantly increased 12-15 Hz EEG activity.
- Participants showed a decrease in awakenings and an increase in slow-wave sleep and subjective sleep quality.
- SMR responders (16/24) exhibited enhanced overnight memory consolidation and altered sleep spindle activity.
Conclusions:
- Instrumental SMR conditioning is a promising non-pharmacological method for improving sleep quality and cognitive function in insomnia.
- The observed benefits in sleep and memory suggest SMR training may be a viable therapeutic approach.
- Further research is needed to confirm these preliminary findings and establish SMR training protocols.
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