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Developmental trajectories of macroanatomical structures in common marmoset brain
- Source :
- Neuroscience. 364
- Publication Year :
- 2017
-
Abstract
- Morphometry studies of human brain development have revealed characteristics of some growth patterns, such as gray matter (GM) and white matter (WM), but the features that make human neurodevelopment distinct from that in other species remain unclear. Studies of the common marmoset ( Callithrix jacchus ), a small New World primate, can provide insights into unique features such as cooperative behaviors complementary to those from comparative analyses using mouse and rhesus monkey. In the present study, we analyzed developmental patterns of GM, WM, and cortical regions with volume measurements using longitudinal sample (23 marmosets; 11 male, 12 female) between the ages of one and 30 months. Regional analysis using a total of 164 magnetic resonance imaging datasets revealed that GM volume increased before puberty (5.4 months), but subsequently declined until adulthood, whereas WM volume increased rapidly before stabilizing around puberty (9.9 months). Cortical regions showed similar patterns of increase and decrease, patterns with global GM but differed in the timing of volume peak and degree of decline across regions. The progressive–regressive pattern detected in both global and cortical GM was well correlated to phases of synaptogenesis and synaptic pruning reported in previous marmoset studies. A rapid increase in WM in early development may represent a distinctive aspect of human neurodevelopment. These findings suggest that studies of marmoset brain development can provide valuable comparative information that will facilitate a deeper understanding of human brain growth and neurodevelopmental disorders.
- Subjects :
- 0301 basic medicine
Male
Brain development
Synaptic pruning
Synaptogenesis
White matter
03 medical and health sciences
0302 clinical medicine
biology.animal
medicine
Animals
Primate
Longitudinal Studies
Gray Matter
Cerebral Cortex
biology
General Neuroscience
Age Factors
Marmoset
Callithrix
Human brain
biology.organism_classification
Magnetic Resonance Imaging
White Matter
030104 developmental biology
medicine.anatomical_structure
Female
Psychology
Neuroscience
030217 neurology & neurosurgery
Subjects
Details
- ISSN :
- 18737544
- Volume :
- 364
- Database :
- OpenAIRE
- Journal :
- Neuroscience
- Accession number :
- edsair.doi.dedup.....3f2b1fd1ea8654dee42cfecbfa89609f