Psychological and physiological changes during isolation and confinement. 2nd experiment series: Pain and thermal sensation

Abstract

A second series of experiments that studied the effects of Isolated and Confined Environments (ICE) for five days on pain and thermal sensation was carried out using five different subjects from those used in 1998. First and second pains were measured using a radiant heat algometer. The thresholds for warm and cold sensation were measured using a Peltier type thermode. These measurements were performed by the subjects themselves. The thresholds for warm and cold sensation did not clearly change in ICE. No significant changes in first pain occurred in ICE. In contrast to the first experiment, the magnitude of second pain decreased significantly (p was smaller than 0.05) when compared with the pre-ICE period.

痛覚と熱感覚に及ぼす5日間の隔離/幽閉環境(ICE)の影響を研究する第2次実験シリーズを、1998年の被験者と異なる5名の被験者について実行した。1次の痛み測定と2次の痛み測定を、放射熱痛覚計を用いて行った。温感覚と冷感覚のしきい値をペルティエ型加熱素子により測定した。これらの測定は被験者自身が行った。温感覚と冷感覚のしきい値はICEではっきりとは変化しなかった。ICEにおいて発生した1次の痛みに顕著な変化はなかった。第1次実験と対照的に、2次の痛みの大きさはICE以前と比べてかなり減少した(p<0.05)。