Table 1.
Example testing schedules
| Day | Schedule 1 | Schedule 2 |
|---|---|---|
| Monday | nn | nn |
| Tuesday | np | n |
| Wednesday | n | np |
| Thursday | np | n |
| Friday | p | np |
| Saturday | Rest | Rest |
| Sunday | Rest | Rest |
| Monday | n | p |
| Tuesday | np | nn |
| Wednesday | nn | np |
| Thursday | np | nn |
| Friday | n | np |
| Saturday | Rest | Rest |
| Sunday | Rest | Rest |
‘n’ = CS-/US-, ‘p’ = CS+/US+. Indicated in bold are the days where infusions would typically take place. Having two parallel testing schedules is useful to avoid having too many infusions on any one particular day of the week. There were no more than five sessions containing ‘p’ in two weeks. ‘nn’ trials were included to diminish the association between time spent in the apparatus and likelihood of obtaining reward.