Systematic changes in position sense accompany normal aging across adulthood

Table 3 Model fits and percentiles for hand-based parameters of position sense

Param	Group	Trans		Model fit		Percentiles
			P	Slope	Bias	1	2.5	5	25	50	75	95	97.5	99
Var_x	Dom	log	<10^-5	0.0044	0.935	–0.566	–0.479	–0.406	–0.151	–0.006	0.169	0.418	0.458	0.489
Var_x	N-Dom	log	0.001	0.0036	0.873	–0.729	–0.528	–0.462	–0.191	–0.005	0.178	0.456	0.529	0.652
Var_y	All	log	<10^-4	0.0030	0.268	–0.604	–0.472	–0.400	–0.175	–0.011	0.164	0.425	0.505	0.642
Var_xy	Dom	log	<10^-5	0.0042	1.056	–0.492	–0.410	–0.375	–0.146	–0.001	0.150	0.400	0.430	0.459
Var_xy	N-Dom	log	0.001	0.0033	1.023	–0.616	–0.463	–0.432	–0.157	–0.007	0.152	0.414	0.519	0.595
Shift_x	All	—	0.673	—	—	–9.184	–7.765	–6.501	–3.221	–0.550	2.534	7.242	8.098	9.425
Shift_y	Dom	—	0.135	—	—	–5.716	–4.684	–4.172	–1.464	0.015	1.627	3.614	5.143	5.610
Shift_y	N-Dom	—	0.009	–0.0241	–0.093	–4.973	–4.058	–3.641	–1.622	–0.034	1.567	3.979	4.928	6.699
Shift_xy	All	sqrt	0.009	0.0040	1.784	–1.241	–1.066	–0.926	–0.399	–0.022	0.397	0.917	1.087	1.303
C/E_xy	All	—	<10^-5	–0.0026	0.954	–0.416	–0.362	–0.318	–0.148	–0.009	0.146	0.350	0.425	0.513
AE_xy	Male	log	0.001	0.0038	1.479	–0.639	–0.569	–0.488	–0.265	0.030	0.229	0.483	0.593	0.661
AE_xy	Female	inv	0.012	–0.0007	0.247	0.146	0.141	0.113	0.042	–0.003	–0.049	–0.097	–0.106	–0.119

Abbreviations: Var, variability; C/E, spatial contraction/expansion; AE, absolute error. For parameters with a significant effect of sex or active-hand, model fits and percentiles are given for each group. None of the parameters had a significant effect of both sex and active-hand.

ISSN: 1743-0003