2 Distinct Classes of L2 and L3 Pyramidal Neurons in Human Temporal Cortex (Deitcher et al 2017)

"There have been few quantitative characterizations of the morphological, biophysical, and cable properties of neurons in the human neocortex. We employed feature-based statistical methods on a rare data set of 60 3D reconstructed pyramidal neurons from L2 and L3 in the human temporal cortex (HL2/L3 PCs) removed after brain surgery. Of these cells, 25 neurons were also characterized physiologically. Thirty-two morphological features were analyzed (e.g., dendritic surface area, 36 333 ± 18 157 µm2; number of basal trees, 5.55 ± 1.47; dendritic diameter, 0.76 ± 0.28 µm). ... A novel descriptor for apical dendritic topology yielded 2 distinct classes, termed hereby as “slim-tufted” and “profuse-tufted” HL2/L3 PCs; the latter class tends to fire at higher rates. Thus, our morpho-electrotonic analysis shows 2 distinct classes of HL2/L3 PCs."

Model Type: Neuron or other electrically excitable cell

Region(s) or Organism(s): Neocortex

Model Concept(s): Electrotonus

Simulation Environment: NEURON

Implementer(s): Eyal, Guy [guy.eyal at mail.huji.ac.il]; Deitcher, Yair [yair.deitcher at mail.huji.ac.il]


Deitcher Y et al. (2017). Comprehensive Morpho-Electrotonic Analysis Shows 2 Distinct Classes of L2 and L3 Pyramidal Neurons in Human Temporal Cortex. Cerebral cortex (New York, N.Y. : 1991). 27 [PubMed]

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