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

[国際宇宙ステーションでの体験をシミュレートした地磁気による注意タスク遂行に関する研究] med./bio.

Investigations of a simulated geomagnetic field experienced by the international space station on attentional performance.

掲載誌: Bioelectromagnetics 2009; 30 (1): 45-51

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研究目的(著者による)

To test whether the exposure to a magnetic field simulating the one encountered by the International Space Station (ISS) orbiting around the earth may affect cognitive functions.

詳細情報

12 healthy men were exposed to the simulated magnetic field and another 12 were sham-exposed to the natural geomagnetic field. The simulation was simplified when compared with the real conditions to which astronauts are exposed; e.g. the duartion of exposure was shorter and only the head was exposed. Each participant underwent a 90-min session. In the first 30 minutes they solved a crossword, then they viewed a series of emotional pictures (15 minutes) and the last 45 minutes they performed attention tests.

影響評価項目

ばく露

ばく露 パラメータ
ばく露1:
  • geomagnetic
ばく露時間: continuous for 90 min

ばく露1

主たる特性
周波数
  • geomagnetic
タイプ
  • magnetic field
ばく露時間 continuous for 90 min
ばく露装置
ばく露の発生源/構造
ばく露装置の詳細 pair of horizontal Helmholtz coils around the test person's head; coils with a diameter of 35 cm, consisting of 100 turns of 0.8 mm copper wire wound around an aluminum ring
Sham exposure A sham exposure was conducted.
パラメータ
測定量 種別 Method Mass 備考
磁束密度 20 µT minimum 測定値 - -
磁束密度 50 µT maximum 測定値 - -

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:
  • ばく露中

研究の主なアウトカム(著者による)

There was no significant difference between the sham-exposed and the exposed group, except for a trend for the alertness test indicating faster reaction times under magnetic field exposure.

研究の種別:

研究助成

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