Extended Data Fig. 5: Target acquisition times for a variety of comparisons.

a, Performance comparison for 1 vs. 2 new targets/trial (targ/tr). Population data for the target acquisition times (ms) using the 4D decoder for 2 new targets/trial (blue) and 1 new target/trial (red) over blocks of the task. Each dot corresponds to a trial, and the black diamond indicates the mean value. N denotes the number of trials per block, µ denotes the mean value, and R denotes the rate of targets acquired in targets/min. b, The 4D and 2D decoders on 2D task. Target acquisition times (ms) for the 4D and 2D decoders are compared on the 2D task with 2 new targets/trial task (2T). The 4D decoder is also run on the 3-finger group, 4D task (4T) with 2 new targets/trial. The blocks on the 2423 and 2430 trial days of data collection represent consecutive blocks without re-training unless otherwise indicated. The labels 4D/4T indicate the 4D decoder run on 4T; 4D/2T indicates the 4D decoder on 2T; and 2D/2T indicates the 2D decoder on 2T. c, Decoder stability test for 2 trial days using the 4-DOF decoder for 2 new targets/trial. For days 2402 (blue and light blue) and 2409 (red), the decoder was trained (upside down triangle with “Decoder Trained”) and then used in consecutive blocks until trials could not be reliably completed. On day 2402, the decoder was re-trained (“Decoder Updated”) to demonstrate the recovery of performance on 2 subsequent blocks (light blue).