Effects of drug manipulations on the relative proportion of striatal neurons exhibiting antidromic spikes in response to SNr stimulationa
| Treatment | SNr+ | SNr− |
|---|---|---|
| Systemic vehicle + local aCSF | 3 | 10 |
| Systemic TP-10 + local aCSF | 4 | 13 |
| Systemic vehicle + local ODQ | 4 | 14 |
| Systemic TP-10 + local ODQ | 4 | 16 |
| Systemic TP-10 + local SQ 22536 | 4 | 15 |
↵aThere was no significant change in the number of SNr+ cells recorded following local or systemic drug manipulations compared with vehicle administration (p > 0.05; χ2 test). Only a subset of all recorded striatal neurons were tested for antidromic responses.