Drexel University, United States.
Drexel University, United States.
Neuroimage. 2020 Oct 15;220:117011. doi: 10.1016/j.neuroimage.2020.117011. Epub 2020 Jun 3.
An influential model of the neural mechanisms of creative thought suggests that creativity is manifested in the joint contributions of the Default Mode Network (DMN; a set of regions in the medial PFC, lateral and medial parietal cortex, and the medial temporal lobes) and the executive networks within the dorsolateral PFC. Several empirical reports have offered support for this model by showing that complex interactions between these brain systems account for individual differences in creative performance. The present study examined whether the engagement of these regions in idea generation is modulated by one's eminence in a creativity-related field. Twenty (n = 20) healthy eminent creators from diverse fields of expertise and a 'smart' comparison group of sixteen (n = 16) age- and education-matched non-eminent thinkers were administered a creative generation task (an adaptation of the Alternative Uses Task) and a control perceptual task, while undergoing functional magnetic resonance imaging (fMRI). The participants' verbal responses were recorded through a noise-canceling microphone and were later coded for fluency and accuracy. Behavioral and fMRI analyses revealed commonalities between groups, but also distinct patterns of activation in default mode and executive brain regions between the eminent and the non-eminent participants during creative thinking. We interpret these findings in the context of the well-documented contributions of these regions in the generation of creative ideas as modulated, in this study, by participants' creative eminence.
一个有影响力的创造性思维神经机制模型表明,创造力体现在默认模式网络(DMN;一组位于内侧前额叶、外侧和内侧顶叶皮质以及内侧颞叶的区域)和背外侧前额叶执行网络的联合贡献中。几项实证研究通过表明这些大脑系统之间的复杂相互作用可以解释创造性表现的个体差异,为该模型提供了支持。本研究探讨了这些区域在创意生成中的参与是否受到一个人在创造力相关领域的卓越表现的调节。20 名来自不同专业领域的健康杰出创造者和 16 名年龄和教育程度与之匹配的非杰出思想家(n=16)被给予一个创意生成任务(改编自替代用途任务)和一个控制感知任务,同时进行功能磁共振成像(fMRI)。参与者的口头反应通过降噪麦克风记录,并在后来对流畅性和准确性进行编码。行为和 fMRI 分析显示了两组之间的共性,但也显示了在创造性思维过程中,杰出参与者和非杰出参与者的默认模式和执行大脑区域之间存在不同的激活模式。我们根据这些区域在创造性思维中生成创造性想法的文献记录来解释这些发现,在本研究中,这些区域的激活受到参与者的创造性卓越表现的调节。