Figure 3. 3-D computer reconstructions of MCs in different layers.
A1, layer II/III MC with a prominent axonal cluster in layer I and only a few collaterals ramified around its soma, and dendrites that extend vertically. A2, ASD distribution of layer II/III MCs displays two peaks. The first peak (around 100 μm) reflects the axonal cluster around soma. B1, layer IV MC with a prominent axonal cluster around the soma and sparse cluster in layer I, and localized dendrites. B2, ASD distribution of layer IV MCs. Only one peak was formed close to the soma. C1, layer V MC with a prominent axonal cluster in layers IV and I, a sparse cluster around the soma, and vertically extending dendrites. D, layer VI MC. This MC has a dendritic tree localized in the infragranular layers and an axonal tree forming clusters in layer I, IV and VI. C2, ASD distribution of layer V MCs also display two peaks.