1. Task-based modulation of functional connectivity of dorsal attention network in adult-ADHD.
- Author
-
Metin B, Damla Kayaalp S, Farhad S, Ciftci E, Gocmen Er B, and Tarhan N
- Subjects
- Humans, Male, Adult, Female, Young Adult, Brain physiopathology, Brain diagnostic imaging, Brain physiology, Neural Pathways physiopathology, Brain Mapping methods, Attention Deficit Disorder with Hyperactivity physiopathology, Attention Deficit Disorder with Hyperactivity diagnostic imaging, Attention Deficit Disorder with Hyperactivity psychology, Attention physiology, Magnetic Resonance Imaging, Nerve Net diagnostic imaging, Nerve Net physiopathology
- Abstract
Recent studies have prompted a shift in the understanding of attention deficit hyperactivity disorder (ADHD) from models positing dysfunction of individual brain areas to those that assume alterations in large-scale brain networks. Despite this shift, the underlying neural mechanism of ADHD in the adult population remains uncertain. With functional magnetic resonance imaging (fMRI), this study examined brain connectivity of dorsal and ventral attention networks. Adults with and without ADHD completed a Go/No-Go task inside the scanner and the functional connectivity of attention networks was analysed. The generalized psychophysiological interaction analysis indicated differences involving the dorsal attention network. For the ADHD group, an interaction effect revealed altered dorsal attention-default mode network connectivity modulation, particularly between the right frontal eye field and posterior cingulate gyrus. We conclude that dorsal attention network dysfunction may be involved in sustained attention deficits in adult-ADHD. This study sheds light into network-level alterations contributing to the understanding of adult-ADHD, which may be a potential avenue for future research and clinical interventions., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier B.V. All rights reserved.)
- Published
- 2024
- Full Text
- View/download PDF