New symmetry of intended curved reaches

Table 1 Parameters of interest measured in the 2 monkeys

Targets	AVRG	1	2	3	4	5	6
*Max VP* (cm/s)	F = 19.2, p < 10^-5	116 ± 10.5	84.8 ± 5.2	87.1 ± 7.9	111 ± 12.9	85.4 ± 10.7	83.4 ± 8.2
		136 ± 53.3	130 ± 7.9	125.4 ± 4.5	141 ± 18.6	137.3 ± 17.2	130.9 ± 6.8
		151 ± 19.8	148 ± 23.3	143.8 ± 3.4	159 ± 40.5	150.8 ± 17.8	145.6 ± 27.6
*Max K* (cm)	F = 22.2, p < 10^-7	6 ± 1.1	2.8 ± 1.0	1.2 ± 0.6	5.9 ± 1.18	3.05 ± 0.9	2.21 ± 0.7
		14 ± 2.3	6.83 ± 2.5	2.9 ± 2.3	15.2 ± 3.0	8.9 ± 2.2	5.6 ± 1.8
		23 ± 2.1	11.7 ± 5.13	7.4 ± 3.1	22.8 ± 6.4	19.9 ± 2.9	9.7 ± 4.7
*Max T* (deg)	F = 22.1, p < 10^-7	52 ± 17.2	47.8 ± 17.8	43 ± 16.2	46.6 ± 12.8	46.4 ± 18.8	46.1 ± 20.3
		116 ± 53.4	119 ± 47	105 ± 38	118 ± 32.5	118 ± 48.1	115.5 ± 53.4
		139 ± 35.1	133 ± 40	108 ± 44.	142 ± 27.9	128.3 ± 30.9	140.0 ± 32.4
Δδ (cm)	F = 9.2, p < 10^-4	4 ± 1.8	1.8 ± 2.4	1.03 ± 1.4	1.82 ± 0.6	-0.5 ± 3.1	-2.3 ± 3.5
		7 ± 5.18	3.1 ± 3.4	2.06 ± 1.9	1.15 ± 1.4	-2.2 ± 1.6	-4.2 ± 0.5
		12 ± 2.3	8.6 ± 3.4	4.87 ± 2.9	3.8 ± 0.3	-9.7 ± 2.3	-12.2 ± 2.2
tau (ms)	F = 17.2, p < 10^-6	235 ± 41.8	228 ± 39.2	216 ± 18	251 ± 41.3	231.9 ± 24.1	211.3 ± 39.8
		237 ± 39.3	237 ± 37.8	223 ± 17	292 ± 37.5	241.4 ± 23.9	245.9 ± 34.9
		246 ± 34.9	243 ± 29.0	239 ± 3	344 ± 33.2	314.4 ± 31.1	303.3 ± 27.5
	F = 7.7 p < 0.001	2 ± 0.3	2 ± 0.1	2 ± 0.2	2 ± 0.3	1.9 ± 0.2	2.0 ± 0.4
		2 ± 0.2	2 ± 0.2	2 ± 0.2	1.9 ± 0.2	1.8 ± 0.2	1.7 ± 0.1
		3 ± 0.4	3 ± 0.3	3 ± 0.3	2 ± 0.2	1.7 ± 0.2	1.7 ± 0.3

Parameters were averaged across data from 2 subjects for automated straight reaches, reaches avoiding one obstacle and reaches avoiding 2 obstacles. Parameters included the maximum velocity peak (out of multiple peaks) in cm/s, the maximum bending (κ in cm), the maximum twisting (T in degrees), the difference in distance travelled delta between the point of maximum bending and the point of maximum speed along the hand path (in cm)-negative values indicate that the peak bending occurred prior to the peak velocity; the time tau to reach the first velocity peak (in ms), and the unit less ratio of total hand path length (cm) to distance travelled to the first velocity peak (cm) -a value of 2 means that the speed profile was symmetric. The 2way-ANOVA results (averaged F-value and Prob>F across the 6 most affected targets and 2 monkeys) are displayed in the first column.

ISSN: 1744-9081