Table 3.
Summary of measured neuropil parameters
Axon diameter (V1 & V3) | 0.20 ± 0.06 μm |
Dendrite diameter (V1 & V3) | 0.67 ± 0.26 μm |
Mean PSD area (V1) | 0.054 μm2 |
Exponential decay constant of PSD area (V1) | 0.047 μm−2 |
Mean spine head volume (V1) | 0.038 μm3 |
Exponential decay constant of spine head volume (V1) | 0.037 μm−3 |
Number of axons touching dendritic shaft per μm of dendritic length (V1 & V3) | 6 ± 2 |
Number of axons per μm2 volume cross-section (V1 & V3) | 7 |
Number of axons crossing a cylinder 1 μm from dendritic shaft surface per length of dendrite (V1 & V3) | 22 ± 6 |
Volume density of synapses (V1, V3 & V4) | 2.2 ± 0.5 μm−3 |