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. Author manuscript; available in PMC: 2013 Apr 21.

Published in final edited form as: Exp Brain Res. 2009 Dec 24;202(1):189–202. doi: 10.1007/s00221-009-2126-5

Table 1.

Mean (SD) of the error and variability measures during the goal-directed trials

	Fast (150 ms)				Slow (1 s)
	20%	40%	60%	80%	20%	40%	60%	80%
Endpoint error (cm)	3.87 (1.64)	3.60 (1.44)	4.83 (2.21)	6.97 (3.98)	3.97 (1.68)	3.49 (1.31)	3.58 (1.09)	3.46 (0.95)
Endpoint variance (cm²)	47.7 (29.9)	21.2 (7.3)	29.4 (25.7)	25.7 (23.8)	40.9 (27.5)	22.9 (17.4)	17.4 (10.5)	11.3 (10.1)
SD force trajectory (N)	0.12 (0.06)	0.22 (0.13)	0.31 (0.18)	0.49 (0.29)	0.14 (0.06)	0.31 (0.18)	0.43 (0.25)	0.66 (0.52)
SD peak force (N)	0.87 (0.40)	1.33 (0.61)	1.93 (0.99)	0.99 (1.00)	0.92 (0.43)	1.37 (0.95)	2.21 (1.76)	1.89 (0.82)
SD time to peak force (s)	0.036 (0.019)	0.034 (0.015)	0.046 (0.021)	0.053 (0.03)	0.219 (0.067)	0.226 (0.085)	0.225 (0.079)	0.207 (0.076)
Force error (N)	0.89 (0.44)	1.22 (0.06)	1.95 (1.11)	2.21 (0.86)	0.87 (0.41)	1.29 (0.86)	2.02 (1.71)	2.25 (1.28)
Time error (s)	0.034 (0.16)	0.033 (0.014)	0.045 (0.023)	−0.066 (0.041)	0.233 (0.114)	0.209 (0.081)	0.214 (0.067)	0.201 (0.076)