日本人の表情に関する研究 : 同室者と自己像が表情表出に及ぼす影響について  [in Japanese] A Study on Japanese Facial Expressions : On the Influence of Observers and Monitor TV upon Expressions of Emotions  [in Japanese]

感情教示による表情撮影の際、実験者が立ち会う場合と被験者が単独で撮影を行う場合とで表情にどのような違いがあるか、さらに、自分の顔がリアルタイムに映されているモニターを見る場合とモニターなしの場合とで違いがあるだろうか。これを調べるために5名の女子大学生を被験者として実験を行い、ピーク時の表情の強度と各試行の反応時間を計測したところ、どちらの指標も単独・モニターなし条件が同室・モニターなし条件を有意差に上回った。また、表情別に集計したところ強度と時間に弱い正の相関がみられた他、時間に個人差があることがわかった。

The preset study aimed at examination of the influence of observers and monitor TV upon expressions of emotions. In the experiment, five female students were asked to make in their own ways under four different conditions; with or without observers, with or without monitor TV on which they could see their faces. The results indicated that the monitor TV significantly effected upon the strength and the time lapse of making facial explessions when the obervers were rooming in. It is suggested that the existence of observers weakens and shortens the display of facial expression. The correlation between the strength and the time lapse of facial expressions (r=.43) was significant and the individual differences were found in the time lapse.