. Author manuscript; available in PMC: 2013 Mar 2.

Published in final edited form as: Ann Biomed Eng. 2008 Nov 4;37(1):230–245. doi: 10.1007/s10439-008-9592-y

Table 2.

Statistical significance for effect of pixel size and sampling interval, Δt_exp on various parameters using Kolmogorov-Smirnov nonparametric test. A p-value <0.05 indicates significant difference.

Condition	Parameter	p-values (n1³,n2⁴)
Condition	Parameter	pbabe	neuN	neuT
Constant Δt_exp (2.5 minute), compare 40x and extracted 10x	Mean directional-mode time¹	0.943 (102,106)	0.548 (68,78)	0.990 (108,106)
	Mean re-orientation-mode time1¹	(102,106)	0.741(68,78)	0.989 (108,106)
	Mean speed²	< 0.001 (3525,3525)	<0.001(3525,3525)	< 0.001 (2820,2820)

Constant pixel (40x), compare 0.5 and 2.5 minute, Δt_exp	Mean directional-mode time¹	< 0.001 (214,102)	< 0.001 (187,68)	< 0.001 (169,108)
	Mean re-orientation-mode time¹	< 0.001 (214,102)	< 0.001 (187,68)	< 0.001 (169,108)
	Mean speed²	< 0.001 (3585,3585)	< 0.001 (3585,3585)	< 0.001 (2868,2868)

minute

µm /minute

sample size at 40x (constant Δt_exp) or sample size at 0.5 minute (constant pixel)

⁴

sample size at extracted 10x (constant Δt_exp) or sample size at 2.5 minutes (constant pixel)