Table 3.
Proportions of glutamatergic and glycinergic interneurons in which monosynaptic EPSPs and oligosynaptic IPSPs were evoked by stimulation of group I and II afferents of various nerves
| Group I | Group II | |||||||
|---|---|---|---|---|---|---|---|---|
| Excitatory | Inhibitory | Excitatory | Inhibitory | |||||
| Ipsilateral | Bilateral | Contralateral | Ipsilateral | Ipsilateral | Bilateral | Contralateral | Ipsilateral | |
| n | 5 | 6 | 3 | 22 | 5 | 6 | 3 | 22 |
| EPSPs from nerves: | ||||||||
| Q | 2 | 5 | 1 | 7 | 4 | 2 | 0 | 13 |
| Sart | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 7 |
| PBST | 2 | 1 | 1 | 3 | 0 | 0 | 0 | 0 |
| ABSM | 2 | 1 | 0 | 3 | 0 | 0 | 0 | 0 |
| GS | 2 | 4 | 1 | 1 | 0 | 0 | 0 | 0 |
| DP | 0 | 1 | 1 | 2 | 3 | 1 | 2 | 10 |
| IPSPs from nerves: | ||||||||
| Q | 4 | 4 | 2 | 14 | 1 | 5 | 0 | 9 |
| Sart | 5 | 2 | 0 | 2 | 1 | 4 | 0 | 4 |
| PBST | 2 | 0 | 0 | 3 | 0 | 0 | 0 | 1 |
| ABSM | 1 | 0 | 0 | 2 | 0 | 1 | 0 | 0 |
| GS | 2 | 1 | 0 | 1 | 1 | 1 | 0 | 0 |
| DP | 1 | 3 | 2 | 2 | 4 | 5 | 2 | 6 |
| From same nerve as EPSP | 4 | 4 | 2 | 10 | 3 | 5 | 1 | 10 |
| From other nerves | 11 | 6 | 2 | 14 | 4 | 11 | 1 | 10 |
PSPs evoked by stimuli not exceeding 2T were classified as being evoked from group I afferents, and as monosynaptic or disynaptic if the latencies were less than 1.1 ms (EPSPs) or 1.8 ms (EPSPs and IPSPs), respectively. PSPs evoked at thresholds 2–4T and latencies ranging from 2 to 4.5 ms were classified as being evoked from group II afferents.