Key Laboratory of Cognition and Personality (SWU), Ministry of Education, Chongqing, China.
Faculty of Psychology, Southwest University, Chongqing, China.
Commun Biol. 2024 Jun 7;7(1):703. doi: 10.1038/s42003-024-06405-0.
Novelty and appropriateness are two fundamental components of creativity. However, the way in which novelty and appropriateness are separated at behavioral and neural levels remains poorly understood. In the present study, we aim to distinguish behavioral and neural bases of novelty and appropriateness of creative idea generation. In alignment with two established theories of creative thinking, which respectively, emphasize semantic association and executive control, behavioral results indicate that novelty relies more on associative abilities, while appropriateness relies more on executive functions. Next, employing a connectome predictive modeling (CPM) approach in resting-state fMRI data, we define two functional network-based models-dominated by interactions within the default network and by interactions within the limbic network-that respectively, predict novelty and appropriateness (i.e., cross-brain prediction). Furthermore, the generalizability and specificity of the two functional connectivity patterns are verified in additional resting-state fMRI and task fMRI. Finally, the two functional connectivity patterns, respectively mediate the relationship between semantic association/executive control and novelty/appropriateness. These findings provide global and predictive distinctions between novelty and appropriateness in creative idea generation.
新颖性和适当性是创造力的两个基本组成部分。然而，新颖性和适当性在行为和神经水平上是如何分离的，目前仍知之甚少。在本研究中，我们旨在区分创造性思维产生的新颖性和适当性的行为和神经基础。与分别强调语义联想和执行控制的两种已确立的创造性思维理论一致，行为结果表明新颖性更多地依赖于联想能力，而适当性更多地依赖于执行功能。接下来，我们在静息态 fMRI 数据中采用连接组预测建模（CPM）方法，定义了两个基于功能网络的模型——分别由默认网络内的相互作用和边缘网络内的相互作用主导——分别预测新颖性和适当性（即跨脑预测）。此外，在额外的静息态 fMRI 和任务 fMRI 中验证了这两种功能连接模式的可推广性和特异性。最后，这两种功能连接模式分别介导了语义联想/执行控制与新颖性/适当性之间的关系。这些发现为创造性思维产生中的新颖性和适当性提供了全局和预测性的区分。
