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Response-dependent injections of histamine (mg/kg/inj) and saline presented across successive sessions in Experiment 1
| Session | Condition |
|---|---|
| 1 | 1.00 histamine |
| 2 | 1.00 histamine |
| 3 | 1.00 histamine |
| 4 | saline |
| 5 | 1.00 histamine |
| 6 | saline |
| 7 | 0.32 histamine |
| 8 | saline |
| 9 | 0.10 histamine |
| 10 | 1.00 histamine |
