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• W4225550724 abstract "Dopamine in the prefrontal cortex can be disrupted in human disorders that affect cognitive function such as Parkinson's disease (PD), attention-deficit hyperactivity disorder (ADHD), and schizophrenia. Dopamine has a powerful effect on prefrontal circuits via the D1-type dopamine receptor (D1DR). It has been proposed that prefrontal dopamine has inverted U-shaped dynamics, with optimal dopamine and D1DR signaling required for peak cognitive function. However, the quantitative relationship between prefrontal dopamine and cognitive function is not clear. Here, we conducted a meta-analysis of published manipulations of prefrontal dopamine and the effects on working memory, a high-level executive function in humans, primates, and rodents that involves maintaining and manipulating information over seconds to minutes. We reviewed 646 articles and found that 75 studies met criteria for inclusion. Our quantification of effect sizes for dopamine, D1DRs, and behavior revealed a negative quadratic slope. This is consistent with the proposed inverted U-shape of prefrontal dopamine and D1DRs and working memory performance, explaining 10% of the variance. Of note, the inverted quadratic fit was much stronger for prefrontal D1DRs alone, explaining 26% of the variance, compared to prefrontal dopamine alone, explaining 10% of the variance. Taken together, these data, derived from a variety of manipulations and systems, demonstrate that optimal prefrontal dopamine signaling is linked with higher cognitive function. Our results provide insight into the fundamental dynamics of prefrontal dopamine, which could be useful for pharmacological interventions targeting prefrontal dopaminergic circuits, and into the pathophysiology of human brain disease. (PsycInfo Database Record (c) 2022 APA, all rights reserved)." @default.
• W4225550724 created "2022-05-05" @default.
• W4225550724 creator A5016797178 @default.
• W4225550724 creator A5042326558 @default.
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• W4225550724 creator A5069753020 @default.
• W4225550724 creator A5081814381 @default.
• W4225550724 creator A5082128655 @default.
• W4225550724 date "2022-06-01" @default.
• W4225550724 modified "2023-10-17" @default.
• W4225550724 title "Quantifying the inverted U: A meta-analysis of prefrontal dopamine, D1 receptors, and working memory." @default.
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