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.