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Developmental Changes in Pyramidal Cell Morphology in Multiple Visual Cortical Areas Using Cluster Analysis.

Reem Khalil1, Ahmad Farhat2, Paweł Dłotko2

  • 1Biology, Chemistry, and Environmental Sciences Department, American University of Sharjah, Sharjah, United Arab Emirates.

Frontiers in Computational Neuroscience
|June 17, 2021
PubMed
Summary
This summary is machine-generated.

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Pyramidal cell development in the macaque monkey

Area of Science:

  • Neuroscience
  • Developmental Biology
  • Computational Biology

Background:

  • Neuronal morphology, particularly dendritic arbors, varies across cell types and brain regions, influencing neuronal function.
  • Understanding these variations is crucial for comprehending brain organization and function.

Purpose of the Study:

  • To quantitatively analyze the developmental trajectories of layer III pyramidal cell morphology in the ventral visual pathway of macaque monkeys.
  • To identify which morphological features mature early versus late and whether these changes occur simultaneously or hierarchically across visual cortical areas.

Main Methods:

  • Utilized a large dataset of pyramidal cells from http://neuromorpho.org/.
  • Performed quantitative analysis of morphological features.
Keywords:
PCAV1cerebral cortexclusteringdevelopmentmammalian brainmonkeyrefinement

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  • Applied principal component analysis (PCA) and hierarchical clustering analysis.

    • Main Results:

    • Pyramidal cell maturation in most visual cortical areas is primarily driven by early development of topological features.
    • Specific visual cortical areas (V1, V2, V4, TEO, and TE) exhibit unique developmental trajectories for pyramidal cell morphology.

    Conclusions:

    • Topological features play a significant role in the early stages of pyramidal cell morphological development.
    • Distinct developmental paths exist for pyramidal cell morphology across different visual processing areas.