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The number of rats staying in the dark compartment until recumbency during initial exposure to isoflurane (experiments 2 and 3) or CO2 (experiment 2 only), relative to the total number of rats tested. Results are shown separately for the two different light levels tested on the light side of the box and for experiments 2 (n = 32) and 3 (n = 16).
| experiment 2 |
experiment 3 |
||
|---|---|---|---|
| light (lx) | isoflurane | CO2 | isoflurane |
| 300 | 5/8 | 0/8 | 2/8 |
| 1600 | 4/8 | 0/8 | 8/8 |
| total | 9/16 | 0/16 | 10/16 |
