Table 5.
Bout analysis of alcohol drinking by photoperiod in the 6HR environmental CD.
| 18HR dark | 12HR dark | 6HR light | 12HR light | |||||
|---|---|---|---|---|---|---|---|---|
| CT | CD | CT | CD | CT | CD | CT | CD | |
| Avg bout length | 8.5 (0.4) | 8.6 (1.4) | 7.0 (0.3) | 7.3 (1.4) | 8.5 (0.5) | 9.1 (1.1) | 8.9 (0.4) | 9.4 (1.5) |
| Avg counts/bout | 116.0 (5.6) | 135.0 (14.0) | 120.8 (10.8) | 133.4 (17.6) | 138.8 (11.4) | 132.5 (17.5) | 122.9 (6.9) | 122.7 (16.2) |
| Avg peak rate | 65.5 (0.8) | 68.6 (2.0) | 79.6 (1.6) | 86.1 (1.7) | 79.7 (1.5) | 71.2 (2.7) | 67.1 (0.8) | 63.0 (1.8) |
| Bouts/h | 0.8 (0.03) | 0.6 (0.03) | 0.7 (0.04) | 0.6 (0.1) | 2.5 (0.1) | 2.9 (0.1) | 2.5 (0.1) | 2.4 (0.2) |
There were no differences in the total counts on the wheel between photoperiods, nor in bout lengths, counts per bout, peak rate, or in bouts per hour (data indicate the mean (SEM) for n = 6).