Table 1.
Absolute and relative distributions of excitatory and inhibitory synaptic inputs over the surfaces of seven examined hippocampal neuron types.
| Total dendritic length (μm) | Total inputs | Excitatory inputs | Inhibitory inputs | Inhibitory ratio (%) total | somatic (%) | peri-somatic (%) | distal dendritic (%) | |
|---|---|---|---|---|---|---|---|---|
| P cells | 11500 | 32400 | 30600 | 1700 | 5.3 | 100.0 | 50.0 | 4.2 |
| PV | 4300 | 16300 | 15200 | 1100 | 6.0 | 30.0 | 32.0 | 6.0 |
| CCK | 6300 | 8100 | 5200 | 3000 | 36.0 | 73.4 | 61.0 | 31.0 |
| CB | 3400 | 3800 | 2600 | 1200 | 29.0 | 58.1 | 58.0 | 31.0 |
| CR | 2500 | 2200 | 1700 | 500 | 20.0 | 42.5 | 46.0 | 22.0 |
| HS | 5800 | 22000 | 19000 | 5300 | 14.0 | 25.0 | 25.0 | 14.0 |
| HS sp | 5000 | 37700 | 37000 | 0 | 2.3 | 1.0 | 1.0 | 2.0 |
|
Relative distribution of excitation (%) |
Relative distribution of inhibition (%) |
|||||||
| soma | proximal | distal | soma | proximal | distal | |||
| P cells | 0.0 | 0.8 | 99.2 | 4.3 | 19.6 | 76.1 | ||
| PV | 2.8 | 12.5 | 84.6 | 16.6 | 15.0 | 68.4 | ||
| CCK | 1.0 | 5.8 | 93.2 | 5.1 | 16.3 | 78.6 | ||
| CB | 3.9 | 34.2 | 61.8 | 12.5 | 30.4 | 57.1 | ||
| CR | 5.5 | 27.4 | 67.1 | 14.6 | 29.8 | 55.7 | ||
| HS | 2.9 | 28.2 | 68.8 | 5.8 | 27.4 | 66.8 | ||
| HS sp | 3.2 | 9.4 | 87.4 | 1.4 | 10.6 | 88.0 | ||
We indicated extreme high and low values with bold and bold/italics, respectively. Values are mean and rounded values from the papers cited in the Results section. Variance is not shown.