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

[現代的生活の健康悪影響についてのメディアの警告は思い込みで現実にしてしまうか?電磁界を原因と考える環境不耐症(IEI-EMF)についての実験研究] med./bio.

Are media warnings about the adverse health effects of modern life self-fulfilling? An experimental study on idiopathic environmental intolerance attributed to electromagnetic fields (IEI-EMF).

掲載誌: J Psychosom Res 2013; 74 (3): 206-212

このボランティア実験は、メディアの報道が電磁過敏症(EHS)の症状の発症を促進するか否かを調べた。被験者147人を無作為に2つのグループに割り当て、実験群(n=76)にはテレビ報道フィルム(WiFiの健康への悪い影響に関するもの;健康リスクを懸念する科学者や議員の発言、EHSの患者へのインタビューが含まれる)、対照群(n=71)には対照用テレビ報道フィルム(携帯電話のデータ送信セキュリティに関するもの、健康問題は含まれない)を見せた。見終わった後、WiFi信号への擬似ばく露(15分間)を全被験者に与えた。第1のアウトカム指標は擬似ばく露後の症状の申告、第2の指標はEMF健康影響の懸念度・擬似ばく露症状の原因と考えること・主観的EMF敏感度の上昇とした。その結果、想定上の有害要因による健康への悪い影響についてのメディア報道は、擬似ばく露による症状の体験、およびその有害要因への見かけ上の敏感度上昇を起き易くする可能性があることが示された、と報告している。

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研究目的(著者による)

To test whether media reports promote the development of electrosensitivity.

詳細情報

Probands were randomly assigned to watch a television report about the adverse health effects of WiFi (n=76) or a control film (n=71). After watching their film, participants received a sham exposure to a WiFi signal for 15 minutes. During this sham exposure participants were asked to monitor for possible symptoms that might develop and were told that they could ask to terminate the exposure if any symptoms became too strong.

影響評価項目

ばく露

ばく露の詳細情報なし

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
  • ばく露後

研究の主なアウトカム(著者による)

Watching the film about the adverse health effects of WiFi increased the worries about electromagnetic fields compared to the group having watched the control film. This effect was stronger in people with higher state anxiety.
82 of the 147 participants reported symptoms which they attributed to the sham exposure. Participants who watched the WiFi-film reported more and stronger symptoms after the sham exposure than those who watched the control-film, especially participants with higher state anxiety. Attributions of symptoms to the WiFi sham exposure were strongest in people who watched the WiFi-film and who also had higher levels of state anxiety, with high levels of somatization and more concerns about electromagnetic fields.
The likelihood of people from the experimental group who attributed their symptoms to the sham exposure increased believing themselves to be electrosensitive compared to people having watched the control film.
The study demonstrated that media reports about the possible adverse health effects of modern technologies could elevate levels of concern among the public and increase the likelihood of reported symptoms following sham exposure.

研究の種別:

研究助成

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