Fig 3. shows the beta-coefficients of reward- and punishment-based responding for physical activity for three lag moments (t-1, t-2 and t-3).

A stronger association of physical activity with positive affect at day t-3, corrected for effects at day t-2 and day t-1, increases physical activity at day t. Similarly, a stronger association between physical activity with negative affect at day t-2, corrected for effects at day t-2 and day t-1, decreases physical activity at day t. No significant cross-context effects were found. Error bars represent confidence intervals. This Fig. shows that the hypothesized effects do show up in post-hoc analyses where we corrected not just for 2 but for three time lags (3 days).