Nakashima K, Sato H
Department of Ergonomics, Kyushu Institute of Design, Fukuoka, Japan.
J Hum Ergol (Tokyo). 1992 Dec;21(2):201-6.
A distinct theta rhythm of EEG in the frontal midline area during performance of mental tasks has been called Fm theta. One of the characteristics of Fm theta is individual differences in its appearance. The effects of various mental tasks and its repetition on appearance of Fm theta were investigated. Adding, correcting wrong words, short-term memory (STM) and counting cubes were imposed 6 times on 7 male students who didn't generate Fm theta at the previous experiment. Counting cubes evoked more Fm theta than the other three mental tasks. In every task the first trial showed little Fm theta, and the appearance time of Fm theta was enhanced by repetition. Type I of Spielberger's State-Trait Anxiety Inventory (STAI-I) demonstrated a higher state anxiety level of the subjects at the first trial. It may be concluded that the amount of Fm theta corresponds to the level in concentration of attention.
在执行心理任务期间，额中线区域脑电图（EEG）出现的一种独特的θ节律被称为额中θ波（Fm theta）。Fm theta的特征之一是其出现存在个体差异。研究了各种心理任务及其重复对Fm theta出现的影响。对7名在前一次实验中未产生Fm theta的男学生进行了6次加法、改正错词、短期记忆（STM）和数方块任务。数方块任务比其他三项心理任务诱发更多的Fm theta。在每项任务中，第一次试验显示出很少的Fm theta，并且Fm theta的出现时间通过重复而增加。斯皮尔伯格状态-特质焦虑量表（STAI-I）的I型显示受试者在第一次试验时具有较高的状态焦虑水平。可以得出结论，Fm theta的量与注意力集中程度相对应。
