Table 1.
Tone durations for the FR procedure.
| FR | Low/high tone durations (sec) |
|---|---|
| 1 | 0.15/1.19 |
| 5 | 0.74/0.60 |
| 15 | 0.92/0.42 |
| 30 | 1.04/0.30 |
| 60 | 1.13/0.21 |
| 120 | 1.19/0.15 |
FR = fixed-ratio schedule of reinforcement
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