Association between Behavioral Ambidexterity and Brain Health
Association between Behavioral Ambidexterity and Brain Health
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DOI：
10.3390/brainsci10030137
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发表时间：
2020-03-01
期刊：
影响因子：
3.3
通讯作者：
Hiraki, Kazuo
中科院分区：
文献类型：
--
作者：
Kokubun, Keisuke;Yamakawa, Yoshinori;Hiraki, Kazuo
正确处理和转换新知识的探索和现有知识的利用是社会真正创新的基本要素。此外，越来越多的研究表明，这种“双灵巧性”不仅与组织绩效有关，而且与人类的大脑有关。然而，在这些报道中，还没有任何明确的基于mri的参数来客观和容易地评估这种双灵巧性。因此，一种基于核磁共振成像的灰质体积指数，称为灰质脑保健商（GM-BHQ），被用来衡量双手灵巧和整个人类大脑之间的联系。为此，我们招募了200名健康成人作为研究对象，接受了结构t1加权成像，并回答了多项心理问卷。采用好奇心与探索量表（好奇心与探索量表II）和短砂砾量表（Short Grit Scale）作为好奇心和砂砾的探索开发指标，对双灵巧性进行评价。此外，为了丰富对这些关联的理解，我们使用了三个额外的积极思考量表——一般自我效能量表、罗森博格自尊量表和生活取向测试——分别来评估自我效能、自尊和乐观。研究人员发现，在控制了年龄和性别之后，GM-BHQ与好奇心、毅力和自我效能感的关系很弱。此外，在路径模型中，GM-BHQ与好奇心直接相关，但与毅力间接相关。然而，GM-BHQ与其他结果指标（即自尊和乐观）之间没有显着关联。这些结果表明，大脑健康与心理测试评估的双灵巧性之间的关系很弱。
Appropriately handling and switching exploration of novel knowledge and exploitation of existing knowledge is a fundamental element of genuine innovation in society. Moreover, a mounting number of studies have suggested that such "ambidexterity" is associated not only with organizational performance but also with the human brain. Among these reports, however, there have not been any definitive MRI-based parameters that objectively and easily evaluate such ambidexterity. Therefore, an MRI-based index derived from gray matter volume, called the gray-matter brain healthcare quotient (GM-BHQ), was used to measure the association between ambidexterity and the entire human brain. For this purpose, 200 healthy adults were recruited as subjects to undergo structural T1-weighted imaging and to answer multiple psychological questionnaires. Ambidexterity was evaluated using two scales: the Curiosity and Exploration Inventory II and the Short Grit Scale, as exploration-exploitation indicators of curiosity and grit, respectively. Additionally, to enrich the understanding of these associations, three additional positive thinking scales were used-the General Self-Efficacy Scale, the Rosenberg Self-Esteem Scale, and the Life Orientation Test-to evaluate self-efficacy, self-esteem, and optimism, respectively. The authors discovered the GM-BHQ was weakly associated with curiosity, grit, and self-efficacy individually after controlling for age and sex. Furthermore, the GM-BHQ was directly associated with curiosity but indirectly associated with grit in the path model. However, no significant association was found between the GM-BHQ and the other outcome indicators (i.e., self-esteem and optimism). These results suggest that brain health is weakly associated with ambidexterity evaluated using psychological tests.