研究のタイプ: 医学/生物学の研究 (experimental study)

[自己報告された症状および睡眠(EEG)に対する884MHz GSM無線通信信号の影響:実験的誘発研究] med./bio.

The Effects of 884 MHz GSM Wireless Communication Signals on Self-reported Symptom and Sleep (EEG)- An Experimental Provocation Study.

掲載誌: PIERS Proceedings, Beijing, China (2007) The Electromagnetics Academy, 2007, ISBN 9781934142004: 102-104

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研究目的(著者による)

This study was conducted to assess possible effects of prolonged (for 3 hours) exposure to 884 MHz GSM wireless communication signals on self-reported symptoms, cognitive function, and sleep.

詳細情報

The study group consisted of 36 women and 35 men (age range: 18-45 years). 22 women and 16 men reported symptoms they specifically related to mobile phone use. This group was described as electrosensitive. The rest of the participants reported no mobile phone-related symptoms. In choosing this two groups, it should be established whether electrosensitive persons would be able to differentiate exposure conditions from sham exposure.

影響評価項目

ばく露

ばく露 パラメータ
ばく露1: 884 MHz
Modulation type: pulsed
ばく露時間: continuous for 3 h
  • SAR: 1.4 W/kg mean

ばく露1

主たる特性
周波数 884 MHz
タイプ
  • electromagnetic field
ばく露時間 continuous for 3 h
Modulation
Modulation type pulsed
Additional information

GSM signal including periods of DTX and Non-DTX

ばく露装置
ばく露の発生源/構造
  • 884MHz GSM wireless exposure unit
チャンバの詳細 The exposure areas in two separate rooms were shielded with screens, covered with RF absorbing material.
ばく露装置の詳細 The exposure was directed to the left hemisphere of the head.
Sham exposure A sham exposure was conducted.
Additional information Each participant attended three different sessions, one habituation session and two subsequent exposure sessions randomly selected for sham or RF exposure.
パラメータ
測定量 種別 Method Mass 備考
SAR 1.4 W/kg mean - - -

ばく露を受けた生物:

方法 影響評価項目/測定パラメータ/方法

研究対象とした生物試料:
研究対象とした臓器系:
調査の時期:
  • ばく露前
  • ばく露中
  • ばく露後

研究の主なアウトカム(著者による)

Concerning sleep, there was a prolonged latency to reach the first cycle of deep sleep in exposed volunteers. The amount of deep sleep (sleep stage 4) was also decreased in exposed subjects.
Subjects who were not characterized as electrosensitive reported more headaches during exposures versus sham exposure. Neither the electrosensitive group nor the not electrosensitive group was able to detect the true exposure status.

研究の種別:

研究助成

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