Figure 5.

Trial rates achieved in practice. (A) Distribution of trial rates obtained over all sessions that used small rewards (<25 μl) for N = 10 expert rats, excluding the first day after switching from one training condition to another. For limited-duration sessions (dashed lines) we included all sessions 2–6 h in duration preceded by >12 h off task. The qualifying sessions had durations of 2.8 ± 0.6 h (Restricted, black) or 2.4 ± 0.3 h (with CA, blue). For live in training (solid lines) we included all sessions 18–30 h in duration preceded by <6 h off task. The qualifying sessions had durations of 22.8 ± 2.4 h (Restricted, black) or 23.5 ± 3.1 h (with CA, blue). (B) Summary statistics of distributions in (A). Shading indicates 24 h/day access to water requiring task engagement (pale blue), from a water bottle (medium blue) or both (dark blue).