Table 2.
Effect of light stimuli on Tc and wheel-running responses
| Response Latency | Time to Minimum | Turning Point | Recovery Time | Duration** (zero minutes) | |
|---|---|---|---|---|---|
| 10 Flash Tc | 9.3 ± 2.0a | 30.2 ± 1.9a | 32.7 ± 2.4a | 41.4 ± 2.7 | NA |
| 10 Flash WR | 2.33 ± 1.4 | 4.7 ± 1.5 | 42.7 ± 3.2 | 44.6 ± 3.5 | 41.2 ± 2.7e |
| 5-min Pulse Tc | 4.6 ± 0.6b | 33.8 ± 3.4b | 37.4 ± 3.5b | 42.9 ± 3.1 | NA |
| 5-min Pulse WR | 1.6 ± 0.6 | 3.0 ± 1.1 | 43.5 ± 4.1 | 43.9 ± 3.9 | 40.6 ± 3.5e |
| 1-h Pulse Tc | 6.4 ± 2.1c | 35.0 ± 1.7c | 39.1 ± 2.3c | 51.9 ± 3.0d | NA |
| 1-h Pulse WR | 2.8 ± 2.4 | 4.0 ± 2.3 | 58.2 ± 1.8 | 59.2 ± 0.8 | 55.7 ± 2.6 |
Response latency (first minute the measure declines from the last Tc obtained prior to the stimulus); time to minimum (minute at which the smallest response occurs); turning point (first minute with a response greater than the minimum; max = 60); recovery time (minute at which the response achieves half-maximal recovery; max = 60); duration (number of minutes in which zero wheel revolutions occurred; max = 60). a,b,cP < 0.01 vs. corresponding wheel running (WR) result. dP = 0.063 vs. corresponding WR result. eP < 0.05 vs. 1-h pulse result.
**
Mean duration for unstimulated controls was 15.1 ± 1.9 min.