Keywords: Psychiatric Disorders, fMRI (resting state)Most neuroimaging studies investigating autism spectrum disorder (ASD) have focused on static brain function and used children as research subjects. However, this study investigated dynamic changes of regional neural function in adult ASD patients. Significant differences in dynamic regional homogeneity (dReHo) and dynamic amplitude of low-frequency fluctuation (dALFF) were observed based on resting state fMRI in several brain areas, such as the left middle/inferior temporal gyrus and left middle occipital gyrus. A significant correlation was found between clinical scores and the dReHo/dALFF values. These results suggested that dynamic regional brain function might be helpful in understanding neural mechanisms in ASD .
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