ArticleEvidence-based complementary and alternative medicine : eCAM2013
Effect of low-level laser stimulation on EEG power in normal subjects with closed eyes.
Article in Evidence-based complementary and alternative medicine : eCAM, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Insomnia in Parkinson's Disease: Causes, Consequences, and Therapeutic Approaches.Molecular neurobiology · 2025Review
- Effects of Near-Infrared Pulsed Light on the Attention of Human Beings Using Electroencephalography.Life (Basel, Switzerland) · 2023Article
- A System Based on Photoplethysmography and Photobiomodulation for Autonomic Nervous System Measurement and Adjustment.Life (Basel, Switzerland) · 2023Article
- Effect of Near-Infrared Pulsed Light on the Human Brain Using Electroencephalography.Evidence-based complementary and alternative medicine : eCAM · 2021Article
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In a previous study, we found that the low-level laser (LLL) stimulation at the palm with a frequency of 10 Hz was able to induce significant brain activation in normal subjects with opened eyes. However, the electroencephalography (EEG) changes to LLL stimulation in subjects with closed eyes have not been studied. In the present study, the laser array stimulator was applied to deliver insensible laser stimulations to the palm of the tested subjects with closed eyes (the laser group). The EEG activities before, during, and after the laser stimulation were collected. The EEG amplitude powers of each EEG frequency band at 19 locations were calculated. These power data were then analyzed by SPSS software using repeated-measure ANOVAs and appropriate posthoc tests. We found a pronounced decrease in the EEG power in alpha-bandwidth during laser simulation and then less decrease in the EEG power in delta-bandwidth in normal subjects with laser stimulation. The EEG power in beta-bandwidth in the right occipital area also decreased significantly in the laser group. We suggest that LLL stimulation might be conducive to falling into sleep in patients with sleep problems.
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Registered trials
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