Zhang Zhonglu, Lei Yi, Xing Qiang, Li Hong
Department of Psychology, School of Education, Guangzhou University, Guangzhou, China.
Institute of Brain and Psychological Science, Sichuan Normal University, Chengdu, China.
Psychophysiology. 2021 Apr;58(4):e13778. doi: 10.1111/psyp.13778. Epub 2021 Feb 5.
Restructuring refers to achieving satisfactory solutions by breaking obstacles or forming novel associations in problem-solving. One critical question arises regarding how an appropriate solution is processed in our brain during the restructuring of problem representations. This study aims to explore the electrophysiological correlates of appropriateness evaluation of restructuring by employing a chunk decomposition task. During loose or tight chunk decomposition, participants needed to assess whether they could get a valid solution after probe removal from a source character chunk. As reflected by the late positive complex, the processing of appropriateness exhibited the greatest effect (appropriate vs. inappropriate) in left parietal regions for tight chunk decomposition, but exhibited insignificant differences across most brain regions for loose chunk decomposition. This study provides the first primary electrophysiological evidence that both hemispheres contribute to and the left hemisphere plays a predominant role in evaluating the appropriateness of restructuring in problem solving.
重构是指在解决问题时通过打破障碍或形成新的关联来获得令人满意的解决方案。关于在问题表征重构过程中，大脑如何处理合适的解决方案，出现了一个关键问题。本研究旨在通过采用组块分解任务来探索重构适宜性评估的电生理相关性。在松散或紧密组块分解过程中，参与者需要评估从源字符组块中移除探针后是否能得到有效的解决方案。如晚期正复合体所反映的那样，适宜性处理在紧密组块分解时，在左顶叶区域表现出最大的效应（适宜与不适宜），但在松散组块分解时，在大多数脑区表现出不显著的差异。本研究提供了首个初步电生理证据，表明在解决问题时评估重构适宜性的过程中，两个半球都有贡献，且左半球起主要作用。
