From brain circuits to self-regulation: an integrative neurocognitive model of metacognition and emotion regulation in ADHD.
Level 5 - mechanism / opinion, no new human data
Narrative review synthesizing theoretical mechanisms without meta-analysis or original empirical data
PubMed 42602691 · doi:10.3389/fpsyt.2026.1830766
What was done
The authors conducted a narrative review of literature published between 1995 and 2025 identified through PubMed, Scopus, and Web of Science. The search covered ADHD, emotion regulation, metacognition, executive function, dopamine, glutamate, and fronto-striatal and fronto-limbic circuitry. Evidence was synthesized across neurobiological mechanisms, metacognitive control, emotion regulation, and clinical symptom expression to propose an integrative neurocognitive model.
What was found
The abstract reports no numerical findings or effect sizes. Qualitatively, it reports that prefrontal regulatory system dysfunction impairs metacognitive monitoring and top-down control, and reduced prefrontal regulation of limbic structures (particularly the amygdala and ventral striatum) increases emotional reactivity and impulsive behaviors, linking neural circuit dysfunction to the clinical ADHD phenotype.
Why it matters
The paper integrates disparate research streams into a unified model that frames ADHD as a disorder of hierarchical self-regulation rather than purely an attentional deficit. This conceptual framework provides a roadmap for developing mechanism-targeted interventions addressing emotional and metacognitive difficulties.
Limits
The paper is a narrative review without systematic search protocols, quantitative synthesis, or risk-of-bias evaluation. The number of reviewed studies is not reported in the abstract, and the proposed causal cascade remains theoretical until prospectively tested in clinical and experimental cohorts.
Cited by
- supports Suppression of the limbic system by the anterior cingulate cortex and frontal lobes, as well as prolonged emotional arousal via the reticular activating system, is cognitively and physiologically exhausting.