TABLE II.

Results From Selected Four Subjects in First Experimental Dataset.

Subject	Epoch	P-value	KS dist. (linear→nonlin.)
11	control, supine	0.020	0.0755→0.0573	✓
11	control, upright	0.166	0.0424 → 0.0517
11	ATR, supine	0.004	0.1085→0.1004	✓
11	ATR, upright	0.002	0.1202→0.1.135	✓
11	DB, supine	0.018	0.1442→0.0805	✓
11	DB, upright	0.156	0.1684→0.1374	✓
15	control, supine	0.090	0.0590 → 0.0709
15	control, upright	0.132	0.0765→0.0927
15	ATR, supine	0.138	0.1277→0.0914	✓
15	ATR, upright	0.128	0.1339→0.1191	✓
15	DB, supine	0.288	0.1584→0.1087	✓
15	DB, upright	0.230	0.1540→0.0940	✓
20	control, supine	0.012	0.0416 → 0.0406	✓
20	control, upright	0.136	0.0599 → 0.0354	✓
20	PROP, supine	0.230	0.0994→0.0793	✓
20	PROP, upright	0.142	0.0994→0.0570	✓
20	DB, supine	<1e-8	0.1026→0.0684	✓
20	DB, upright	0.004	0.1010→0.1269
21	control, supine	0.178	0.1343→0.1161	✓
21	control, upright	0.208	0.0713→0.0578	✓
21	PROP, supine	0.232	0.0506 → 0.0279	✓
21	PROP, upright	0.012	0.1337→0.1227	✓
21	DB, supine	0.094	0.1130→0.1063	✓
21	DB, upright	0.430	0.1087→0.1017	✓

P-values are obtained from the nonlinearity test. The numbers in bold font indicate the KS fit is within the 95% confidence bound. The tick indicates an improvement of fit by inclusion of nonlinearity.