Evidence of slow maturation of the superior longitudinal fasciculus in early childhood by diffusion tensor imaging

Jiangyang Zhang, Alan Evans, Laurent Hermoye, Seung Koo Lee, Setsu Wakana, Weihong Zhang, Pamela Donohue, Michael I. Miller, Hao Huang, Xiaoqing Wang, Peter C.M. van Zijl, Susumu Mori

Research output: Contribution to journalArticle

Abstract

While the majority of axonal organization is established by birth in mammalian brains, axonal wiring and pruning processes, as well as myelination, are known to extend to the postnatal periods, where environmental stimuli often play a major role. Normal axonal and myelin development of individual white matter tracts of human in this period is poorly understood and may have a major role in cognitive development of human. In this study, we applied diffusion tensor imaging and normalization-based population analyses to 44 preteen children and 30 adult images. We observed highly significant changes of fiber orientations at regions that correspond to the superior longitudinal fasciculus during the first 5 years. The result is attributed to slow axonal and/or myelin maturation of this tract, which is believed to be involved in language functions.

Original languageEnglish (US)
Pages (from-to)239-247
Number of pages9
JournalNeuroImage
Volume38
Issue number2
DOIs
StatePublished - Nov 1 2007

ASJC Scopus subject areas

  • Neurology
  • Cognitive Neuroscience

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