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Mind wandering perspective on attention-deficit/hyperactivity disorder.

Natali S Bozhilova, Giorgia Michelini, Jonna Kuntsi, Philip Asherson

Neuroscience and biobehavioral reviews September 2018 DOI: 10.1016/j.neubiorev.2018.07.010 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Review Peer reviewed
Topics Default mode network
Keywords ADHD Executive control network Mind wandering Theory
Key findings Argues that excessive, spontaneous mind wandering—driven by altered default mode network deactivation and dysfunctional interaction with the executive control network—underpins ADHD symptoms and impairments. Proposes that deficient context regulation, sensory decoupling, and salience thresholds contribute, and that mind-wandering measures could serve as markers of the disease process and a potential endophenotype.

Abstract

Attention-Deficit/Hyperactivity Disorder (ADHD) is a common neurodevelopmental disorder associated with a range of mental health, neurocognitive and functional problems. Although the diagnosis is based on descriptions of behaviour, individuals with ADHD characteristically describe excessive spontaneous mind wandering (MW). MW in individuals with ADHD reflects constant mental activity which lacks topic stability and content consistency. Based on this review of the neural correlates of ADHD and MW, we outline a new perspective on ADHD: the MW hypothesis. We propose that altered deactivation of the default mode network, and dysfunctional interaction with the executive control network, leads to excessive and spontaneous MW, which underpins symptoms and impairments of ADHD. We highlight that processes linked to the normal neural regulation of MW (context regulation, sensory decoupling, salience thresholds) are deficient in ADHD. MW-related measures could serve as markers of the disease process, as MW can be experimentally manipulated, as well as measured using rating scales, and experience sampling during both cognitive tasks and daily life. MW may therefore be a potential endophenotype.

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