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

[携帯電話による蝸牛聴覚障害に関する脳電図計の生体への影響] med./bio.

EEG bioeffects on cochlear deaf from cellular phones.

掲載誌: Environmentalist 2007; 27 (4): 519-523

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研究目的(著者による)

To study the effect of electromagnetic induction through mobile phones on the human brain.

詳細情報

EEG data of healthy normal individuals (n=12) were compared to those of cochlear deaf individuals (n=12), to investigate an induced electromagnetic effect that is independent from sound waves. First, EEG recordings were assessed at baseline (5 min with eyes closed and phone off) and then during 5 min conversation with the phone placed on the right ear.

影響評価項目

ばく露

ばく露 パラメータ
ばく露1: 880–960 MHz
Modulation type: pulsed
ばく露時間: continuous for 5 min
  • 電力: 2 W maximum
  • SAR: 0.955 W/kg maximum

General information

For more details, see [Bardasano et al., 2005].

ばく露1

主たる特性
周波数 880–960 MHz
タイプ
  • electromagnetic field
特性
  • near field
ばく露時間 continuous for 5 min
Additional information frequency band
Modulation
Modulation type pulsed
Additional information

GSM

ばく露装置
ばく露の発生源/構造
  • セルラ-電話
Distance between exposed object and exposure source 2 cm
チャンバの詳細 Each subject was comfortably seated on a plastic chair inside a Faraday chamber.
ばく露装置の詳細 The mobile phone was held by an insulated device over the right ear, 2 cm from the auricle to avoid thermal effects.
Additional information The EEG of subjects, relaxed and with their eyes closed, was recorded while listening to a 5-min conversation, first with the mobile phone off (basal state) and then with the phone on.
パラメータ
測定量 種別 Method Mass 備考
電力 2 W maximum - - -
SAR 0.955 W/kg maximum - - -

Reference articles

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

研究の主なアウトカム(著者による)

By comparing the EEG data of both groups, an increase in the amplitutes of alpha waves and theta waves, regardless of the sound waves, has been observed. This suggests an inductive direct non-thermal effect of the mobile phone signal on the brain.

研究の種別:

研究助成

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