Table 1.

Timeline of testing and experimental design

Age (months)	Behavioral task	Sample size
0–2
3–4	Pretraining	N = 26 (12 Tg+ and 14 Tg−)
5	5‐CSRTT	N = 25 (12 Tg+ and 13 Tg−)
6	Decoupled OR (1‐ and 24‐hr delay)	N = 24 (11 Tg+ and 13 Tg−)
7	5‐CSRTT	N = 24 (11 Tg+ and 13 Tg−)
8	Decoupled OR (1‐ and 24‐hr delay)	N = 23 (11 Tg+ and 12 Tg−)
12	5‐CSRTT	N = 23 (11 Tg+ and 12 Tg−)
13	Decoupled OR (1‐ and 24‐hr delay)	N = 23 (11 Tg+ and 12 Tg−)
16	5‐CSRTT	N = 22 (10 Tg+ and 12 Tg−)
17	Decoupled OR (1‐ and 24‐hr delay)	N = 22 (10 Tg+ and 12 Tg−)