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Abstract #3150

Characterizing White Matter Abnormalities in Boys with Autism Spectrum Disorders Using Diffusion Tensor Imaging

Sung-Yeon Park1, Se-Hong Oh, 12, Young-Shin Kim3, Young-Bo Kim1, Keun-Ah Cheon4, Zang-Hee Cho1

1Neuroscience Research Institute, Gachon University of Medicine and Science, Incheon, Korea, Republic of; 2Department of Radiology, University of Pennsylvania, Philadelphia, PA, United States; 3Child Study Center, Yale University School of Medicine, New Haven, CT, United States; 44Department of Child and Adolescent Psychiatry and Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, Korea, Republic of

Autism has been hypothesized to reflect neuronal disconnection. Several recent reports implicate the white matter connectivity in the pathophysiology of autism. Accordingly, we aimed to focus on evaluating the integrity of the brain white matters in Korean boys with high-functioning autism spectrum disorders (ASD) using Diffusion Tensor Imaging (DTI). And our preliminary findings support evidence implicating disturbances in the brain white matter connections in autism particularly in left hemisphere. These findings will help on understanding of more advanced neurobiological basis underlying the social deficits in ASD.

Keywords

abnormal abnormalities addition adolescent aimed analyses anatomical atlas autism basic basis behavior behavioral believed boys brain cerebral child circumference cluster coil columns communication confirm connectivity control controls correction deficits defined demographic developing differ diffusion disorders disrupted double dual eddy education enrolled examine examined find findings focus formation fractional free functioning funded gradient head healthy help hemisphere hemispheres hong human hypothesis impairments independent individual inference inferior initial institute integrity interaction invasive johns lack library longitudinal manually matched materials matrix mature medicine ministry much neuronal oxford package park part patients permutation preceded preprocessed previous probabilistic processing psychiatry pulse pulses reciprocal reduced reduction reductions reflect related relation repetitive replicating reports represents republic respectively sample scanner school science separately shin shot significantly social software space spectrum spin statistical statistics stereotyped still structural structure structures subjects suggests support supported suppress table technology tensor though threshold tract tracts typically unclear underlie understanding white whole wise written young