Fig. 4. Behavioral testing chamber for mice from Malkki et al. (2010). The behavioral
box with green LED stimulus lights, two operant levers (shown in the withdrawn
state) and food magazine (in the middle) on the front panel. Operant nose poke task:
(1) cue light on
→
30 s time window during which the animal can collect a sucrose
pellet by poking in the reward tray
→
cue light goes after collection of reward or
the 30 s timeout
→
5–25 s pseudorandom inter-trial interval during.