A
Alex P. Zijdenbos
Researcher at Montreal Neurological Institute and Hospital
Publications - 94
Citations - 27039
Alex P. Zijdenbos is an academic researcher from Montreal Neurological Institute and Hospital. The author has contributed to research in topics: White matter & Hyperintensity. The author has an hindex of 44, co-authored 94 publications receiving 25241 citations. Previous affiliations of Alex P. Zijdenbos include McGill University & Vanderbilt University.
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Journal ArticleDOI
Brain development during childhood and adolescence: a longitudinal MRI study.
Jay N. Giedd,Jonathan D. Blumenthal,Neal Jeffries,F X Castellanos,Hong Liu,Alex P. Zijdenbos,Tomáš Paus,Alan C. Evans,Judith L. Rapoport +8 more
TL;DR: This large-scale longitudinal pediatric neuroimaging study confirmed linear increases in white matter, but demonstrated nonlinear changes in cortical gray matter, with a preadolescent increase followed by a postadolescent decrease.
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A nonparametric method for automatic correction of intensity nonuniformity in MRI data
TL;DR: A novel approach to correcting for intensity nonuniformity in magnetic resonance (MR) data is described that achieves high performance without requiring a model of the tissue classes present, and is applied at an early stage in an automated data analysis, before a tissue model is available.
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Design and construction of a realistic digital brain phantom
D. L. Collins,Alex P. Zijdenbos,V. Kollokian,John G. Sled,Noor Jehan Kabani,Colin J. Holmes,Alan C. Evans +6 more
TL;DR: The authors present a realistic, high-resolution, digital, volumetric phantom of the human brain, which can be used to simulate tomographic images of the head and is the ideal tool to test intermodality registration algorithms.
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Developmental trajectories of brain volume abnormalities in children and adolescents with attention-deficit/hyperactivity disorder.
F. Xavier Castellanos,F. Xavier Castellanos,Patti P. Lee,Wendy Sharp,Neal Jeffries,Deanna Greenstein,Liv S. Clasen,Jonathan D. Blumenthal,Regina James,Christen L. Ebens,James M. Walter,Alex P. Zijdenbos,Alan C. Evans,Jay N. Giedd,Judith L. Rapoport +14 more
TL;DR: Developmental trajectories for all structures, except caudate, remain roughly parallel for patients and controls during childhood and adolescence, suggesting that genetic and/or early environmental influences on brain development in ADHD are fixed, nonprogressive, and unrelated to stimulant treatment.
Journal ArticleDOI
Structural Maturation of Neural Pathways in Children and Adolescents: In Vivo Study
Tomáš Paus,Alex P. Zijdenbos,Keith J. Worsley,D. Louis Collins,Jonathan D. Blumenthal,Jay N. Giedd,Judith L. Rapoport,Alan C. Evans +7 more
TL;DR: Findings provide evidence for a gradual maturation, during late childhood and adolescence, of fiber pathways presumably supporting motor and speech functions.