. 2014 Jan;53(1):61–68.

Table 1.

Number of training sessions required for each subject to reach the criterion performance during each step of the training process

Training steps	Training subject (sex)								Mean no. of sessions per step	Mean % of sessions with NRT
Training steps	E (female)	F (female)	G (male)	I (male)	J (female)	K (female)	L (male)	M (male)	Mean no. of sessions per step	Mean % of sessions with NRT
Step 1: Associates between click and treat	1	7	11	2	21	9	NA	3	8	0
Step 2: Stays in training position	2	9	3	3	4	5	2	3	4	0
Step 3: Tolerates pole approach	4	NA	18	3	68	12	7	11	18	0
Step 4: Tolerates pole touching neutral body area	NA	NA	13	4	6	6	NA	3	6	0
Step 5: Tolerates pole touching collar	8	NA	NA	9	NA	48	77^a (12)	19	32	7
Step 6; Tolerates attachment of pole to collar	9	8^a (6)	37	53^a (18)	14^a (3)	20^a (18)	7^a (7)	48^a (36)	25	45
Step 7: Exits cage on pole and transfers to chair	8^a (3)	9^a (9)	22^a (22)	15^a (9)	11^a (6)	3^a (3)	4	7	10	66
Total no. of sessions	32	33	104	89	124	103	97	94	85
Total time (min)	640	660	1560	890	1860	1545	679	846	1085

NA, the training step was not used (that is, the macaque did not need to acquire that behavior to progress in training; the behavior was train in conjunction with the following step; or the behavior was incorporated during an earlier step).

All macaques were trained to the goal behavior of attaching the pole to the collar, exiting the cage, and transferring to the chair.

NRT (that is, the squeeze mechanism) was incorporated during training; the number of sessions in which NRT was incorporated is given in parentheses.