Dynamic combination of sensory and reward information was affected by time pressure and revealed that subjects were sensitive to imperfect sensory integration.

<p>(<b>A</b>) Subjects improved their performance with longer integration time, and their performance reached a plateau in less than 2.0s. The average performance (probability of a correct response) is plotted as a function of the average median response time (RT) across all subjects, separately for trials with a given level of time pressure (the average available time for each schedule is noted in the legend). Conventions are the same as in <a href="http://www.ploscompbiol.org/article/info:doi/10.1371/journal.pcbi.1006070#pcbi.1006070.g002" target="_blank">Fig 2</a>. (<b>B</b>) Performance increased with longer RT but plateaued at ~1.25s. Performance is plotted as a function of RT binned in ten equal intervals. The solid curve shows the fit using a modified Weibull function. The histogram shows the distribution of RT across the ten bins. (<b>C</b>) Performance did not improve and plateaued closer to the deadline (except for schedule 3 where it declined closer to the deadline) for a given level of time pressure. For display purposes, only four of the six deadlines are shown. (<b>D</b>) Even with equal accumulation time, performance was reduced with more time pressure. Plotted is the average performance on RT-matched trials (based on mean) with adjacent levels of time pressure.