Altered neurocognitive functioning is a key feature of attention-deficit/hyperactivity disorder
(ADHD), and increasing numbers of studies assess task-based functional connectivity in the
disorder. We systematically reviewed and critically appraised functional magnetic resonance
imaging (fMRI) task-based functional connectivity studies in ADHD. A systematic search
conducted up to September 2020 found 34 studies, including 51 comparisons. Comparisons
were divided into investigations of ADHD neuropathology (37 comparing ADHD and typical …