Fig. 8.

A linear classifier trained to decode sample identity from population activity during delay 3 performed at approximately the level of the monkeys on trials in which the match probe corresponded to sample 3. However its performance, unlike the performance of the monkeys, dropped precipitously toward chance on trials in which the match probe corresponded to sample 1 or 2. A and B: spatial task. C and D: color task. Dashed lines indicate levels of performance expected by chance. Quantification and breakdown by monkey in Table 4.