ELIZA

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377) Further, mediation analysis suggested that connectivity strength mediated relationships between DAT1 genotype and behavior.

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PMID:23968837 DOI:10.1093/cercor/bht229

2015 Cerebral cortex (New York, N.Y. : 1991)

* Resting-state striato-frontal functional connectivity is sensitive to DAT1 genotype and predicts executive function.

- Individual differences in striatal dopamine (DA) signaling have been associated both with individual differences in executive function in healthy individuals and with risk for psychiatric disorders defined by executive dysfunction. We used resting-state functional connectivity in 50 healthy adults to examine whether a polymorphism of the dopamine transporter gene (DAT1), which regulates striatal DA function, affects striatal functional connectivity in healthy adults, and whether that connectivity predicts executive function. We found that 9/10 heterozygotes, who are believed to have higher striatal DA signaling, demonstrated stronger connectivity between dorsal caudate (DC) and insular, dorsal anterior cingulate, and dorsolateral prefrontal regions, as well as between ventral striatum and ventrolateral prefrontal cortex, than 10/10 homozygotes. Across subjects, stronger DC-seeded connectivity predicted superior N-back working memory performance, while stronger ventral striatum-seeded connectivity predicted reduced impulsivity in everyday life. Further, mediation analysis suggested that connectivity strength mediated relationships between DAT1 genotype and behavior. These findings suggest that resting-state striato-frontal connectivity may be an endophenotype for executive function in healthy individuals.

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--- WordNet output for analysis --- =>詳細な検討, 分解, 分析, 解析, 見方, 精神分析 Overview of noun analysis The noun analysis has 6 senses (first 3 from tagged texts) 1. (45) analysis -- (an investigation of the component parts of a whole and their relations in making up the whole) 2. (5) analysis, analytic thinking -- (the abstract separation of a whole into its constituent parts in order to study the parts and their relations) 3. (2) analysis -- (a form of literary criticism in which the structure of a piece of writing is analyzed) 4. analysis -- (the use of closed-class words instead of inflections: e.g., `the father of the bride' instead of `the bride's father') 5. analysis -- (a branch of mathematics involving calculus and the theory of limits; sequences and series and integration and differentiation) 6. psychoanalysis, analysis, depth psychology -- (a set of techniques for exploring underlying motives and a method of treating various mental disorders; based on the theories of Sigmund Freud; "his physician recommended psychoanalysis") --- WordNet end ---