Table 1:

Performance metrics for each task per experiment day. ARAT scores were computed as the sum of the best score per object, with a maximum score of 27. Each of the nine objects was attempted 3 times, so that the maximum number of trials attempted per session was 27. The median and inter-quartile (IQR) trial time for successful ARAT trials are shown for each session. The median and IQR trials times for all successful trials were calculated by pooling trial times across all four sessions per feedback condition and calculating the median and IQR from the aggregate distribution. The total number of object transfers is the sum of all five two-minute trials per day.

	Session	ARAT Score (out of 27)	ARAT Trials Completed (out of 27)	Median and IQR trial time for Successful ARAT Trials (s)	Object Transfer (transfers per day)
With ICMS Feedback	1	21	19	11.9 (6.6 – 27.7)	97
	2	21	22	12.0 (5.6 – 38.9)	74
	3	21	21	8.8 (6.0 – 17.2)	93
	4	20	19	8.1 (4.6 – 11.9)	88
	Summary	Median: 21	Median: 20	Median of all trials: 10.2 (5.5 – 18.1)	Total: 352
Without ICMS Feedback	1	19	23	14.0 (11.1 – 30.9)	88
	2	16	19	27.6 (18.8 – 37.2)	55
	3	17	23	18.7 (12.3 – 41.7)	74
	4	17	13	40.5 (15.5 – 48.4)	98
	Summary	Median: 17	Median: 21	Median of all trials: 20.9 (13.1 – 40.5)	Total: 315