Evidence map›Paper›PMID 22973409›Full record

ArticleEvidence-based complementary and alternative medicine : eCAM2012

Effect of low-level laser stimulation on EEG.

Jih-Huah Wu, Wen-Dien Chang, Chang-Wei Hsieh, Joe-Air Jiang, Wei Fang, Yi-Chia Shan, Yang-Chyuan Chang

Abstract read
In one paragraph

Article in Evidence-based complementary and alternative medicine : eCAM, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

12 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
  3. Article
  4. Review
  5. Article
  6. Effect of Near-Infrared Pulsed Light on the Human Brain Using Electroencephalography.Evidence-based complementary and alternative medicine : eCAM · 2021
    Article
  7. Article
  8. Review
  9. Review
  10. Review
  11. Article
  12. Effect of low-level laser stimulation on EEG power in normal subjects with closed eyes.Evidence-based complementary and alternative medicine : eCAM · 2013
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Jih-Huah WuDepartment of Biomedical Engineering, Ming Chuan University, No. 5 Deming Road, Gweishan Township, Taoyuan 333, Taiwan.
Wen-Dien Chang
Chang-Wei Hsieh
Joe-Air Jiang
Wei Fang
Yi-Chia Shan
Yang-Chyuan Chang

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Conventional laser stimulation at the acupoint can induce significant brain activation, and the activation is theoretically conveyed by the sensory afferents. Whether the insensible low-level Laser stimulation outside the acupoint could also evoke electroencephalographic (EEG) changes is not known. We designed a low-level laser array stimulator (6 pcs laser diode, wavelength 830 nm, output power 7 mW, and operation frequency 10 Hz) to deliver insensible laser stimulations to the palm. EEG activities before, during, and after the laser stimulation were collected. The amplitude powers of each EEG frequency band were analyzed. We found that the low-level laser stimulation was able to increase the power of alpha rhythms and theta waves, mainly in the posterior head regions. These effects lasted at least 15 minutes after cessation of the laser stimulation. The amplitude power of beta activities in the anterior head regions decreased after laser stimulation. We thought these EEG changes comparable to those in meditation.

Identifiers

PMID22973409
PMCPMC3438917

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.