Table 1.

Descriptions of the six experiments

Location	Perturbation	Movement	Posture	Experiment	Subjects	Group	Paradigm
Kingston	Visuomotor rotation	Out and back	Supported	1	7	Control			A				A
					8	Test			A		B		A
				2	5	Control			NA		NA		NA
					8	Test			NA		NB		NA
London	Position-dependent force field	Out and back	Free	3	6	Control			A				A
									A
					6	Test 5 min			B				A
					6	Test 24 hr			A		B		A
									A
Kingston	Velocity-dependent force field	Out and back	Free	4	6	Test 5 min			B		A
					11	Control 24 hr			A				A
					8	Test 24 hr			A		B		A
					5	Control 1 week			A				A
					8	Test 1 week			A		B		A
		Point to point	Supported	5	9	Control	N		A				A
					9	Test	N		A		B		A
Kyoto	Velocity-dependent force field	Point to point	Supported	6	6	Control	N		NA		NN		NA
					9	Test	N		NA		NB		NA

, 1 d; , 7 d; N, null trials; A, perturbation trials; B, opposite perturbation to A.