Key Points
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The focus of neuroimaging in mental health research is increasingly on translational approaches
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A multidisciplinary approach is required for clinical translation of neuroimaging findings in autism spectrum disorder (ASD)
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Improving the specificity of neuroimaging markers will substantially enhance the translational potential of this modality
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Novel neuroimaging markers that accurately reflect specific pathological processes in ASD are required to link with data from other scientific approaches, such as genetic or molecular studies
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Neuroimaging findings could provide biomarkers that facilitate diagnosis and prediction of response to treatment, and enable stratification of individuals with ASD
Abstract
Over the past decade, human neuroimaging studies have provided invaluable insights into the neural substrates that underlie autism spectrum disorder (ASD). Although observations from multiple neuroimaging approaches converge in suggesting that changes in brain structure, functioning and connectivity are associated with ASD, the neurobiology of this disorder is complex, and considerable aetiological and phenotypic heterogeneity exists among individuals on the autism spectrum. Characterization of the neurobiological alterations that underlie ASD and development of novel pharmacotherapies for ASD, therefore, requires multidisciplinary collaboration. Consequently, pressure is growing to combine neuroimaging data with information provided by other disciplines to translate research findings into clinically useful biomarkers. So far, however, neuroimaging studies in patients with ASD have mainly been conducted in isolation, and the low specificity of neuroimaging measures has hindered the development of biomarkers that could aid clinical trials and/or facilitate patient identification. Novel approaches to acquiring and analysing data on brain characteristics are currently being developed to overcome these inherent limitations, and to integrate neuroimaging into translational research. Here, we discuss promising new studies of cortical pathology in patients with ASD, and outline how the novel insights thereby obtained could inform diagnosis and treatment of ASD in the future.
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Acknowledgements
The authors' work is supported by the Autism Imaging Multicentre Study Consortium, Medical Research Council UK Grant G0400061, and by European Autism Interventions—A Multicentre Study for Developing New Medications (EU-AIMS), which receives support from the Innovative Medicines Initiative Joint Undertaking under grant agreement no. 115300. The latter includes financial contributions from the European Union Seventh Framework Programme (FP7/2007–2013), the European Federation of Pharmaceutical Industries and Associations companies (in kind), and from Autism Speaks. We thank the National Institute for Health Research Biomedical Research Centre for Mental Health, and the Dr Mortimer and Theresa Sackler Foundation for their financial support.
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Ecker, C., Murphy, D. Neuroimaging in autism—from basic science to translational research. Nat Rev Neurol 10, 82–91 (2014). https://doi.org/10.1038/nrneurol.2013.276
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DOI: https://doi.org/10.1038/nrneurol.2013.276
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