Shepherd R, Gale A
Br J Psychol. 1982 Feb;73(Pt 1):73-84. doi: 10.1111/j.2044-8295.1982.tb01792.x.
Twenty male subjects performed a continuous task involving response to digit sets. The subject was required to respond to sets containing only odd numbers, and whose sum was greater than or equal to 20. Abundance of both left and right hemisphere EEG was inversely related to the number of odd digits in a set, showing accumulation of cortical arousal in response to cue value. This effect was stronger for the left hemisphere in some of the frequency bands. Reaction time correlated with EEg parameters for the left hemisphere only. This study overcomes many of the methodological flaws of earlier work. Differences obtained between hemispheres are thought to reflect both the exertion of mental effort in general and rapid calculation in particular.
20名男性受试者进行了一项涉及对数字集做出反应的连续任务。要求受试者对仅包含奇数且总和大于或等于20的数字集做出反应。左、右半球脑电图的丰富程度与一组中奇数数字的数量呈负相关，表明对提示值的反应中皮质唤醒的积累。在某些频段中，这种效应在左半球更强。反应时间仅与左半球的脑电图参数相关。这项研究克服了早期研究中的许多方法缺陷。半球之间获得的差异被认为既反映了一般心理努力的发挥，也反映了特别是快速计算的发挥。
