Table 1.

Mean ± SEM number of sessions to complete training phases 1 and 2 for Go/No-go task and to attain stable performance under baseline conditions

Strain		Na	Phase lb	Phase 2c	Baselined
MALDR	Male	9	5.44 ± 0.73	5.00 ± 0.68	19.00 ± 0.94
	Female	12	5.75 ± 0.63	2.75 ± 0.58	20.33 ± 0.82
MAHDR	Male	11	6.00 ± 0.66	4.18 ± 0.61	20.64 ± 0.85
	Female	9	5.00 ± 0.73	3.22 ± 0.67	21.44 ± 0.94
MALSENS	Male	12	2.58 ± 0.56	2.00 ± 0.71	28.33 ± 1.72
	Female	14	3.00 ± 0.52	2.14 ± 0.65	28.79 ± 1.59
MAHSENS	Male	11	4.18 ± 0.59	2.91 ± 0.74	28.55 ± 1.80
	Female	13	4.92 ± 0.54	5.46 ± 0.68	23.62 ± 1.65

Notes.

^aMice that failed to acquire the task at any training phase are excluded (see Results section for number of failures).

^bDuring Phase 1 there were 60 Go trials and 0 No-Go trials. Each Go cue lasted for 30 seconds. Mice advanced to the Phase 2 of training by responding on at least 30 of the 60 Go trials within 40 minutes for two consecutive sessions. MALSENS mice advanced after fewer sessions that the MAHSENS mice (F(1, 46) = 10.19,p = .003.) No other differences were found.

^cDuring Phase 2 the Go cue was shortened to 10 s, and mice again had to respond on at least 30 of 60 Go trials within 40 minutes for two consecutive sessions. Again, MALSENS mice advanced more quickly than MAHSENS mice (F(1, 46) = 9.24, p = .004.)

^dThe baseline phase consisted of 30 Go trials and 30 No-go trials (see Procedure for full description). Mice attained stable behavior at similar rates, and no significant line differences were observed.