Table 1.

Experimental timeline. Numbered training/drug testing stages indicates the order in which experiments took place. For each stage of training and drug testing, values indicate the number of training days for each of two cohorts of rats. Training days include both drug testing and drug-free training sessions

	Training days
Task trained/drug tested	Cohort 1	Cohort 2
1. Ascending delays training	20	30
2. Yohimbine	14	27
3. Propranolol	10	10
4. Prazosin	10	10
5. Guanfacine	10	12
6. Descending delays training	65	68
7. Yohimbine	15	14
8. Propranolol	11	14
9. Prazosin	5	6
10. Guanfacine	4	5