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Updated: Jul 11, 2026
08:49
Visualization of Cortical Modules in Flattened Mammalian Cortices
Published on: January 22, 2018
Deep sulcal landmarks provide an organizing framework for human cortical folding
Gabriele Lohmann1, D Yves von Cramon, Alan C F Colchester
1Max Planck Institute for Human Cognitive and Brain Sciences, Stephanstr. 1a, 04103 Leipzig, Germany. lohmann@cbs.mpg.de
Cerebral Cortex (New York, N.Y. : 1991)
|October 9, 2007
Summary
Researchers identified consistent topographical features in the human brain
Area of Science:
- Neuroscience
- Brain Imaging
- Human Anatomy
Background:
- Cerebral cortex folding patterns show significant individual variability.
- Identifying consistent 3D topographical features is crucial for understanding brain function.
- Deeper sulcal regions exhibit less variability and are embryologically conserved.
Purpose of the Study:
- To identify consistent 3-dimensional topographical features of the cerebral cortex.
- To investigate the relationship between these features and functional brain areas.
- To explore the potential genetic basis of cortical organization.
Main Methods:
- Automated 3D magnetic resonance imaging (MRI) analysis of 96 adult human brains.
- Examination of deep sulcal regions for reduced interindividual variability.
- Identification and mapping of maximal depth zones within sulci, termed 'sulcal pits'.
Main Results:
- Discovery of 'sulcal pits,' well-defined zones of maximal depth within each sulcus.
- Observation of a regular, alternating pattern in the spatial arrangement of sulcal pits.
- Sulcal pits exhibit less variability compared to superficial cortical regions.
Conclusions:
- Sulcal pits represent consistent 3D topographical features of the cerebral cortex.
- These pits may be genetically determined and linked to the early 'protomap' of cortical areas.
- Sulcal pits offer a more reliable landmark for relating cortical structure to function.
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