Figure 6.

Action-reward correlation and contiguity. (A) Uncertainty in time of reward availability did not have a significant effect on action-reward correlation. (B) Action-reward contiguity differs for the three schedules: high certainty in time of reward delivery leads to more press-reward contiguity, e.g. actions are closer to subsequent rewards under FI 60 schedule with high certainty. The left panel shows distribution of time until next reward for each lever press. The right panel shows mean values for the time to reward measure.