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Journal ArticleDOI

Brain development during childhood and adolescence: a longitudinal MRI study.

TLDR
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.
Abstract
Pediatric neuroimaging studies1,2,3,4,5, up to now exclusively cross sectional, identify linear decreases in cortical gray matter and increases in white matter across ages 4 to 20. In this large-scale longitudinal pediatric neuroimaging study, we confirmed linear increases in white matter, but demonstrated nonlinear changes in cortical gray matter, with a preadolescent increase followed by a postadolescent decrease. These changes in cortical gray matter were regionally specific, with developmental curves for the frontal and parietal lobe peaking at about age 12 and for the temporal lobe at about age 16, whereas cortical gray matter continued to increase in the occipital lobe through age 20.

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Journal ArticleDOI

The adolescent brain and age-related behavioral manifestations

TL;DR: Developmental changes in prefrontal cortex and limbic brain regions of adolescents across a variety of species, alterations that include an apparent shift in the balance between mesocortical and mesolimbic dopamine systems likely contribute to the unique characteristics of adolescence.
Journal ArticleDOI

Dynamic mapping of human cortical development during childhood through early adulthood

TL;DR: The dynamic anatomical sequence of human cortical gray matter development between the age of 4-21 years using quantitative four-dimensional maps and time-lapse sequences reveals that higher-order association cortices mature only after lower-order somatosensory and visual cortices are developed.
Book ChapterDOI

Obesity and Overweight

TL;DR: Overweight or obesity in adolescents has reache epidemic proportions in the USA and other industr alized countries and these conditions, although lumped together in research and in commentarie reflect adolescents’ being toward the heavier point a continuum that would range from underweight morbidly obese.
Journal ArticleDOI

The Adolescent Brain

TL;DR: Evidence is provided that there is a heightened responsiveness to incentives and socioemotional contexts during this time, when impulse control is still relatively immature, which suggests differential development of bottom‐up limbic systems to top‐down control systems during adolescence as compared to childhood and adulthood.
Journal ArticleDOI

Regional Brain Changes in Aging Healthy Adults: General Trends, Individual Differences and Modifiers

TL;DR: In this paper, the authors present longitudinal measures of five-year change in the regional brain volumes in healthy adults and assess the average and individual differences in volume changes and the effects of age, sex and hypertension with latent difference score modeling.
References
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Journal ArticleDOI

Regional differences in synaptogenesis in human cerebral cortex.

TL;DR: Findings in the human resemble those in rhesus monkeys, including overproduction of synaptic contacts in infancy, persistence of high levels of synaptic density to late childhood or adolescence, the absolute values of maximum and adult synaptic density, and layer specific differences.
Journal ArticleDOI

Positron emission tomography study of human brain functional development.

TL;DR: The determination of changing metabolic patterns accompanying normal brain development is a necessary prelude to the study of abnormal brain development with positron emission tomography.
Journal ArticleDOI

A quantitative magnetic resonance imaging study of changes in brain morphology from infancy to late adulthood.

TL;DR: These patterns of growth and change seen in vivo with MRI are largely consistent with neuropathological studies, as well as animal models of development, and may reflect neuronal progressive and regressive processes, including cell growth, myelination, cell death, and atrophy.
Journal ArticleDOI

Concurrent overproduction of synapses in diverse regions of the primate cerebral cortex.

TL;DR: This isochronic course of synaptogenesis in anatomically and functionally diverse regions indicates that the entire cerebral cortex develops as a whole and that the establishment of cell-to-cell communication in this structure may be orchestrated by a single genetic or humoral signal.
Journal ArticleDOI

Quantitative Magnetic Resonance Imaging of Human Brain Development: Ages 4–18

TL;DR: Findings highlight gender-specific maturational changes of the developing brain and the need for large gender-matched samples in pediatric neuropsychiatric studies.
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