Figure 1

Trial structure of the rat gambling task (rGT). Number of pellets rewarded and duration of punishing timeout are stated for each option above their respective probabilities of occurrence. Assuming exclusive choice of an specific option throughout the session, its maximum number of pellets obtainable are stated at the bottom of the diagram, thus indicating optimal choice order of P2>P1>P3>P4. (Schematic taken with permission from Zeeb et al, 2009).