Razumnikova O M, Vol'f N V, Tarasova I V
Zh Vyssh Nerv Deiat Im I P Pavlova. 2007 Sep-Oct;57(5):553-61.
Effect of extrinsic motivation stimulating the most original problem solving during verbal and figurative divergent thinking was studied by EEG mapping. The righthanded university students (27 males and 26 females) participated in the experiments. An instruction "to create the most original solution" as compared to condition with an instruction "to create any solution" induced an increase in the baseline power of the alpha 1 and alpha 2 rhythms most pronounced in the posterior cortex. Task-related desynchronization of the alpha rhythms was higher but the beta-2 synchronization was lower after the former than after the latter instruction. Differences in the asymmetry of the alpha 1 and alpha 2 rhythms in the parietal and temporal regions of hemispheres suggested the right hemisphere dominance in intrinsic alertness and evoked activation related to divergent thinking. The findings were common and gender-independent in both figurative and verbal tasks suggesting a generalized influence of extrinsic motivation on creative activity.
通过脑电图映射研究了外部动机对言语和形象发散思维过程中最具创造性问题解决的影响。右利手大学生（27名男性和26名女性）参与了实验。与“创造任何解决方案”的指令条件相比，“创造最具创造性的解决方案”的指令导致后皮质中最明显的α1和α2节律的基线功率增加。与后一种指令相比，前一种指令后α节律的任务相关去同步化更高，但β2同步化更低。半球顶叶和颞叶区域α1和α2节律不对称性的差异表明，右半球在与发散思维相关的内在警觉性和诱发激活方面占主导地位。这些发现在形象和言语任务中都是常见的且与性别无关，表明外部动机对创造性活动具有普遍影响。
