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Updated: Feb 22, 2026
High-resolution Functional Magnetic Resonance Imaging Methods for Human Midbrain
Published on: May 10, 2012
Mapping orbitofrontal-limbic maturation in non-human primates: A longitudinal magnetic resonance imaging study
Akiko Uematsu1, Junichi Hata1, Yuji Komaki2
1Department of Physiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan; RIKEN BSI Laboratory for Marmoset Neural Architecture, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan; Central Institute for Experimental Animals, 3-25-12 Tonomachi, Kawasaki-ku, Kawasaki, 210-0821, Japan.
This study reveals non-linear brain development in marmosets, with rapid early growth and adolescent changes in structure and connectivity. Familial factors influence front-limbic development, supporting the marmoset as a model for human brain development.
Area of Science:
- Neuroscience
- Developmental Biology
- Comparative Anatomy
Background:
- Understanding typical brain development is crucial for identifying vulnerabilities in neuropsychiatric disorders.
- Neural development and aging processes are linked to various neuropsychiatric conditions.
- Investigating developmental patterns aids in understanding neuropathology mechanisms.
Purpose of the Study:
- To assess the developmental trajectories of key brain regions in the common marmoset.
- To characterize age-related structural and microstructural changes in the marmoset brain.
- To evaluate the common marmoset as a model for human brain development.
Main Methods:
- Magnetic resonance imaging (MRI) including T2-weighted and diffusion-weighted scans.
- Quantitative and qualitative analysis of brain growth patterns in infant to adult marmosets.
- Tractography to assess structural connectivity changes over development.
Main Results:
- Non-linear structural development observed in orbitofrontal cortex, cingulate cortex, amygdala, and hippocampus.
- Rapid volumetric growth and significant microstructural changes (decreased diffusivity) from 1-3 months.
- Adolescent increases in volume linked to myelination; cortical regions decrease post-adolescence.
- Familial factors, not sex, influenced front-limbic region development.
Conclusions:
- The common marmoset exhibits complex, non-linear brain development mirroring human patterns.
- Early rapid growth and adolescent myelination are key phases in marmoset brain maturation.
- The common marmoset serves as a valuable model for studying human neural development and related disorders.
