Figure 2.

Decisions in mice and rats reflect evidence presented throughout the trial. A, Schematics indicating possible shapes of psychophysical kernels and the strategies they reveal. B, Psychophysical kernel based on pooled data from 29 mice (537,288 trials). C, D, Psychophysical kernels from example mice that typify early weighting and flat weighting. E, Psychophysical kernels from two rats (26,890 trials). Gray traces, Individual subjects; black trace, average. Values were >0 throughout the trial for almost all subjects, demonstrating that stimuli presented throughout the 1000 ms duration influence the animal's eventual choice. F, Scatter plot relating the weight of evidence early versus late in the trial. Error bars indicate SEM. Dashed line: x = y. G, Effect of previous decision outcome (success/failure) on current choice.