Effect of Low-Level Laser Stimulation on EEG
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....
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Series: | Evidence-Based Complementary and Alternative Medicine |
Online Access: | http://dx.doi.org/10.1155/2012/951272 |
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doaj-515a99e2a0474f2cbcf9e409cd7251552020-11-25T00:28:30ZengHindawi LimitedEvidence-Based Complementary and Alternative Medicine1741-427X1741-42882012-01-01201210.1155/2012/951272951272Effect of Low-Level Laser Stimulation on EEGJih-Huah Wu0Wen-Dien Chang1Chang-Wei Hsieh2Joe-Air Jiang3Wei Fang4Yi-Chia Shan5Yang-Chyuan Chang6Department of Biomedical Engineering, Ming Chuan University, No. 5 Deming Road, Gweishan Township, Taoyuan 333, TaiwanDepartment of Sports Medicine, China Medical University, No. 91 Hsueh-Shih Road, Taichung City 404, TaiwanDepartment of Photonic and Communication Engineering, Asia University, Taichung 413, TaiwanDepartment of Bio-Industrial Mechatronics Engineering, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei 106, TaiwanDepartment of Bio-Industrial Mechatronics Engineering, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei 106, TaiwanDepartment of Bio-Industrial Mechatronics Engineering, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei 106, TaiwanDepartment of Neurology, Min-Sheng General Hospital, No. 168 Jin-Kuo Road, Taoyuan City, Taoyuan County 330, TaiwanConventional 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.http://dx.doi.org/10.1155/2012/951272 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jih-Huah Wu Wen-Dien Chang Chang-Wei Hsieh Joe-Air Jiang Wei Fang Yi-Chia Shan Yang-Chyuan Chang |
spellingShingle |
Jih-Huah Wu Wen-Dien Chang Chang-Wei Hsieh Joe-Air Jiang Wei Fang Yi-Chia Shan Yang-Chyuan Chang Effect of Low-Level Laser Stimulation on EEG Evidence-Based Complementary and Alternative Medicine |
author_facet |
Jih-Huah Wu Wen-Dien Chang Chang-Wei Hsieh Joe-Air Jiang Wei Fang Yi-Chia Shan Yang-Chyuan Chang |
author_sort |
Jih-Huah Wu |
title |
Effect of Low-Level Laser Stimulation on EEG |
title_short |
Effect of Low-Level Laser Stimulation on EEG |
title_full |
Effect of Low-Level Laser Stimulation on EEG |
title_fullStr |
Effect of Low-Level Laser Stimulation on EEG |
title_full_unstemmed |
Effect of Low-Level Laser Stimulation on EEG |
title_sort |
effect of low-level laser stimulation on eeg |
publisher |
Hindawi Limited |
series |
Evidence-Based Complementary and Alternative Medicine |
issn |
1741-427X 1741-4288 |
publishDate |
2012-01-01 |
description |
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. |
url |
http://dx.doi.org/10.1155/2012/951272 |
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