Medical/biological study (experimental study)

The Effects of Mobile Phone Usage on Human Brain using EEG med./bio.

By: Singh G

Published in: Int J Comput Appl 2014; 105 (13): 16-20

Aim of study (acc. to author)

To examine the potential effects of electromagnetic fields from mobile phones on the human brain activity.

Background/further details

Twenty male subjects were examined in this study. First, an electroencephalogram (EEG) was recorded for 15 minutes without a mobile phone (baseline). After a 15 minute rest, the subject was exposed to the electromagnetic field of a mobile phone, which he held at the right ear for 15 minutes and the EEG was recorded. After an additional rest for 15 minutes, the left ear was exposed for 15 minutes and meanwhile the EEG was recorded.
Remark EMF-Portal: not clear if mobile phone was off, in standby, or in speaking mode and if subjects were speaking or silent

Endpoint

effects on the neurological system: brain activity

Exposure

- mobile communications
- mobile phone

Exposure	Parameters
Exposure 1: RF (≥ 10 MHz) Exposure duration: 2 x 15 minutes (with a 15 minute rest in between)	-

Exposure 1

Main characteristics

Frequency	RF (≥ 10 MHz)
Type	electromagnetic field
Exposure duration	2 x 15 minutes (with a 15 minute rest in between)

Exposure setup

Exposure source	cellular phone
Setup	subjects held mobile phone at right or left ear

Parameters

No parameters are specified for this exposure.

Exposed system:

human
partial body: head (right and left ear)

Methods Endpoint/measurement parameters/methodology

effects on the neurological system: brain activity (lower beta waves (12-20 Hz), upper beta waves (20-30 Hz); EEG)

Investigated system:

investigation on living organism

Investigated organ system:

brain/CNS

Time of investigation:

during exposure

Main outcome of study (acc. to author)

Remark EMF-Portal: No statistical significance of results given in the article.
During mobile phone exposure, total power of beta waves was less compared to the base line without exposure. However, power contributions of upper betawaves were more compared to lower band with exposure (also compared to baseline?). Additionally, the total power of beta waves was higher when the mobile phone was used on the right ear in comparison to usage on the left ear.
The authors conclude that exposure to mobile phones increased the awareness of the brain and they advise to use the mobile phone on the left ear.

Study character:

medical/biological study
experimental study
full/main study

Study funded by

not stated/no funding

Yang L et al. (2017): Long-Term Evolution electromagnetic fields exposure modulates the resting state EEG on alpha and beta bands
Mohan M et al. (2016): Does chronic exposure to mobile phones affect cognition?
Roggeveen S et al. (2015): EEG changes due to experimentally induced 3G mobile phone radiation
Smitha CK et al. (2015): Analysis of fractal dimension of EEG signals under mobile phone radiation
Trunk A et al. (2015): Effects of concurrent caffeine and mobile phone exposure on local target probability processing in the human brain
Lv B et al. (2014): Whole brain EEG synchronization likelihood modulated by long term evolution electromagnetic fields exposure
Croft RJ et al. (2008): The effect of mobile phone electromagnetic fields on the alpha rhythm of human electroencephalogram
Hinrikus H et al. (2008): Effect of low frequency modulated microwave exposure on human EEG: Individual sensitivity

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