Fig. 5.
Learning in conjunction with an ACMC in the somatosensory cortex. a The ACMC input electrode is represented by the black circle in S1. Electrical stimuli were applied to the flexor carpi ulnaris (FCU) muscle. b Time course of task performance over 20 min. The initial and last time intervals used in c are indicated in grey. c Topographic map of the MD during the initial and last phases. d Changes in the spatial distribution of the MD of high-gamma activity in the initial phase compared with the last phase. The white open circle represents the input electrode (c–d). Similar results were obtained from five independent experiments using different pairs of electrodes from S1 and muscles (N = 1 monkey [Monkey M], n = 5 sessions, cf. Figs. 2c, d and 3e, Supplementary Figs. 6 and 9)