创造性刺激对发散性思维任务中大脑连通性的影响

IF 0.3 Q3 MEDICINE, GENERAL & INTERNAL
Khairiah Abdul Hamid, Ahmad Nazlim Yusoff, Saemah Rahman, Syazarina Sharis Osman, Shahlan Surat, Maziah Ahmad Marzuki
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引用次数: 0

摘要

导读:发散性思维(DT)的不同方面与不同大脑区域之间的连通性有关。然而,关键DT节点之间的因果相互作用尚未被探索。假设在创造力刺激下,将观察到区域之间有效连通性的变化。材料和方法:本研究通过对照(n=26)和实验(n=24)参与者,旨在研究与发散性思维相关的大脑区域之间的有效连接,这些区域强调流畅性、灵活性和独创性。实验参与者参加了为期两天的创造力刺激,随后对所有参与者进行了三个基于任务的fMRI会话,包括基本用途(BU)识别,替代用途(AU)生成和不寻常用途(UU)确定任务。采用动态因果模型(DCM)确定对内侧前额叶皮质(mPFC)、额下回(IFG)和顶叶下叶(IPL)之间的连接最有可能产生调节影响的最优因果模型。结果:实验参与者的流畅性和灵活性得分高于对照组(p<0.05)。在神经元水平上,对照组表现出相似的内在连接,受到AU和UU任务的调节影响,而实验组在两个任务之间偏好不同的连接扰动。这些组间差异可能是由不同的思维策略引起的,包括语义记忆和情景记忆的检索,以及远程相关概念的整合以构建新的组合。结论:不同的DT需求可能会影响mPFC、IFG和IPL之间的有效连通性,特别是在DT能力较高的个体中,尤其是在流畅性、灵活性和独创性方面。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Influence of Creativity Stimulation on Brain Connectivity during Divergent Thinking Tasks
INTRODUCTION: Different facets of divergent thinking (DT) are associated with connectivity between different cerebral areas. However, the causal interactions between the key DT nodes have yet to be explored. It is hypothesised that with creativity stimulation, changes in effective connectivity among regions will be observed. MATERIALS AND METHODS: By using control (n=26) and experimental (n=24) participants, this study aimed to investigate the effective connectivity between brain areas associated with divergent thinking that accentuate fluency, flexibility, and originality. The experimental participants attended a two-day creativity stimulation, followed by three task-based fMRI sessions for all participants, which included basic use (BU) identification, alternative use (AU) generation and unusual use (UU) determination tasks. Dynamic causal modelling (DCM) was used to determine the most optimal causal model representing the most possible modulatory influence on the connections between medial prefrontal cortices (mPFC), inferior frontal gyrus (IFG), and inferior parietal lobule (IPL). RESULTS: The experimental participants scored higher fluency and flexibility than the controls (p<0.05). At neuronal level, the control group showed similar intrinsic connections receiving modulatory influence for AU and UU tasks, while the experimental group preferred a different perturbation of connection between both tasks. These intergroup differences may be caused by different thinking strategies involving semantic and episodic memory retrieval, and integration of remotely associated ideas to construct new combination among the experimental participants. CONCLUSION: Different DT demands may influence the effective connectivity between mPFC, IFG and IPL especially among individuals with higher DT abilities, especially in fluency and flexibility versus originality.
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来源期刊
International Medical Journal Malaysia
International Medical Journal Malaysia Medicine-Medicine (all)
CiteScore
0.40
自引率
0.00%
发文量
73
期刊介绍: International Medical Journal Malaysia (IMJM) is the official journal of the Kulliyyah (Faculty) of Medicine, International Islamic University Malaysia. It serves primarily as a forum for education and intellectual discourse for health professionals namely in clinical medicine but covers diverse issues relating to medical ethics, professionalism as well as medical developments and research in basic medical sciences. It also serves the unique purpose of highlighting issues and research pertaining to the Muslim world. Contributions to the IMJM reflect its international and multidisciplinary readership and include current thinking across a range of specialties, ethnicities and societies.
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