Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/80778
Title: Resting-state abnormalities in autism spectrum disorders : a meta-analysis
Authors: Lau, WKW
Leung, MK
Lau, BWM 
Issue Date: 2019
Publisher: Nature Publishing Group
Source: Scientific reports, 7 Mar. 2019, v. 9, 3892, p. 1-8 How to cite?
Journal: Scientific reports 
Abstract: The gold standard for clinical assessment of Autism Spectrum Disorders (ASD) relies on assessing behavior via semi-structured play-based interviews and parent interviews. Although these methods show good sensitivity and specificity in diagnosing ASD cases, behavioral assessments alone may hinder the identification of asymptomatic at-risk group. Resting-state functional magnetic resonance imaging (rs-fMRI) could be an appropriate approach to produce objective neural markers to supplement behavioral assessments due to its non-invasive and task-free nature. Previous neuroimaging studies reported inconsistent resting-state abnormalities in ASD, which may be explained by small sample sizes and phenotypic heterogeneity in ASD subjects, and/or the use of different analytical methods across studies. The current study aims to investigate the local resting-state abnormalities of ASD regardless of subject age, IQ, gender, disease severity and methodological differences, using activation likelihood estimation (ALE). MEDLINE/PubMed databases were searched for whole-brain rs-fMRI studies on ASD published until Feb 2018. Eight experiments involving 424 subjects were included in the ALE meta-analysis. We demonstrate two ASD-related resting-state findings: local underconnectivity in the dorsal posterior cingulate cortex (PCC) and in the right medial paracentral lobule. This study contributes to uncovering a consistent pattern of resting-state local abnormalities that may serve as potential neurobiological markers for ASD.
URI: http://hdl.handle.net/10397/80778
EISSN: 2045-2322
DOI: 10.1038/s41598-019-40427-7
Rights: Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
© The Author(s) 2019
The following publication Lau, W. K. W., Leung, M. K., & Lau, B. W. M. (2019). Resting-state abnormalities in Autism Spectrum Disorders: A meta-analysis. Scientific reports, 9(1), 3892, 1-8 is available at https://dx.doi.org/10.1038/s41598-019-40427-7
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