PMID- 34873110 OWN - NLM STAT- MEDLINE DCOM- 20220316 LR - 20220316 IS - 1473-558X (Electronic) IS - 0959-4965 (Linking) VI - 33 IP - 2 DP - 2022 Jan 19 TI - Disrupted functional connectivity between the nucleus accumbens and posterior cingulate cortex in autism spectrum disorder. PG - 43-47 LID - 10.1097/WNR.0000000000001742 [doi] AB - OBJECTIVES: Dysfunctions in the basal ganglia have been repeatedly found in autism spectrum disorder (ASD). The nucleus accumbens (NAcc) is known for its central role in social functions and also in its abnormality in ASD. In this study, whole-brain functional connectivity of the NAcc was examined to isolate brain regions that are differently connected to the NAcc in autism, using resting-state functional MRI (rs-fMRI) data. METHODS: In the initial dataset, 68 individuals with ASD (13.13 +/- 2.41 years old) and 77 typically developing individuals (14.79 +/- 3.57 years old) were compared. RESULTS: The precuneus cortex, lingual gyrus, thalamus, dorsal striatum, anterior cingulate cortex and posterior cingulate cortex showed weaker connectivity to the NAcc in the group with ASD. Among these regions, dysconnectivity of the posterior cingulate cortex (PCC) was replicated in the replication dataset, with 78 individuals with ASD and 105 without ASD. CONCLUSIONS: This study suggests that the dysconnectivity between the NAcc and PCC may account for social dysfunctions in ASD. CI - Copyright (c) 2021 Wolters Kluwer Health, Inc. All rights reserved. FAU - Polk, MaryScott AU - Polk M AD - School of Law, University of Mississippi. FAU - Ikuta, Toshikazu AU - Ikuta T AD - Department of Communication Sciences and Disorders, School of Applied Sciences, University of Mississippi, Mississippi, USA. LA - eng GR - U19 HD035482/HD/NICHD NIH HHS/United States GR - R21 MH079871/MH/NIMH NIH HHS/United States GR - UL1 RR024986/RR/NCRR NIH HHS/United States GR - K23 MH087770/MH/NIMH NIH HHS/United States GR - R21 MH084126/MH/NIMH NIH HHS/United States GR - R01 MH081218/MH/NIMH NIH HHS/United States GR - R01 HD065282/HD/NICHD NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - England TA - Neuroreport JT - Neuroreport JID - 9100935 SB - IM MH - Adolescent MH - *Autism Spectrum Disorder/diagnostic imaging MH - Brain MH - Brain Mapping MH - Child MH - *Gyrus Cinguli/diagnostic imaging MH - Humans MH - Magnetic Resonance Imaging MH - Neural Pathways/diagnostic imaging MH - Nucleus Accumbens/diagnostic imaging EDAT- 2021/12/08 06:00 MHDA- 2022/03/17 06:00 CRDT- 2021/12/07 06:00 PHST- 2021/12/08 06:00 [pubmed] PHST- 2022/03/17 06:00 [medline] PHST- 2021/12/07 06:00 [entrez] AID - 00001756-202201020-00007 [pii] AID - 10.1097/WNR.0000000000001742 [doi] PST - ppublish SO - Neuroreport. 2022 Jan 19;33(2):43-47. doi: 10.1097/WNR.0000000000001742.