广泛流传的"左脑主逻辑、右脑主创意"的人格分类理论缺乏科学依据。12013年一项基于超过1000人、涵盖7000多个脑区的大规模MRI扫描研究表明，虽然某些功能确实集中在大脑的特定一侧——比如语言和注意力控制——但这种功能差异并不足以用来界定个体是"左脑型"还是"右脑型"人格。1
创意思维的产生需要两个大脑半球协同工作的广泛网络参与，而非仅由右脑独自完成。1研究也发现，虽然个体在左右脑功能表现上存在差异，且可能对某些特定技能有所影响，但这些差异远不足以决定人们的整体思维风格或性格特征。1这一理论的长期流行在一定程度上源于"巴纳姆效应"——人们往往倾向于接纳和强化那些符合自我认知的性格描述。1
The popular belief that creative people are "right-brained" while logical thinkers are "left-brained" lacks scientific support, according to research examining brain imaging data.1 A large-scale study conducted in 2013 analyzed MRI scans from over 1,000 individuals across more than 7,000 brain regions and found no evidence that people possess distinct overall "left-brained" or "right-brained" personality types.1
While certain cognitive functions do concentrate in specific brain hemispheres—such as language processing and attention control—these localized differences cannot be used to categorize individuals into broad personality categories.1 The research demonstrated instead that creative thinking relies on extensive neural networks spanning both hemispheres rather than originating solely from the right side of the brain.1 Another 2013 study confirmed that while differences between individuals in left and right brain function do exist and can affect performance in specific skills, such variation is insufficient to determine overall thinking styles or personality profiles.1
The widespread acceptance of left-brain and right-brain personality classifications may be partially explained by the Barnum effect, a psychological phenomenon in which people tend to accept and reinforce personality descriptions that align with their existing self-perception.1
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