A pilot study examining the suitability of the mental arithmetic task and single-item measures of affective states to assess affective, physiological, and attention restoration at a wooden desk

Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 2 Results of the linear mixed models with electrodermal activity parameters as dependent variables

Outcome	Predictor	Estimate	SE	95% CI	df	t	p
SCL [μS]	Intercept	4.66	0.99	2.72 to 6.59	22.2	4.72	< 0.001
	Condition: Wood	− 0.60	1.43	− 3.40 to 2.20	22.2	− 0.42	0.680
	Phase: Recovery	2.60	0.47	1.67 to 3.52	38.0	5.51	< 0.001
	Phase: Task (1)	3.85	0.47	2.93 to 4.78	38.0	8.17	< 0.001
	Wood * Recovery	− 0.78	0.68	− 2.12 to 0.56	38.0	− 1.14	0.262
	Wood * Task (1)	− 0.32	0.68	− 1.66 to 1.02	38.0	− 0.47	0.638
SCR [%] (square root)	Intercept	0.33	0.12	0.10 to 0.55	29.55	2.82	0.008
	Condition: Wood	0.06	0.17	− 0.26 to 0.39	29.55	0.38	0.704
	Phase: Recovery	0.21	0.09	0.03 to 0.40	38.00	2.32	0.026
	Phase: Task (1)	0.59	0.09	0.41 to 0.77	38.00	6.37	< 0.001
	Wood * Recovery	− 0.18	0.13	− 0.44 to 0.09	38.00	− 1.31	0.197
	Wood * Task (1)	− 0.15	0.13	− 0.41 to 0.11	38.00	− 1.12	0.270
SCR amplitude [μS]	Intercept	0.19	0.07	0.06 to 0.33	39.97	2.79	0.008
	Condition: Wood	0.09	0.10	− 0.11 to 0.28	39.97	0.87	0.388
	Phase: Recovery	0.00	0.07	− 0.14 to 0.14	38.00	0.03	0.978
	Phase: Task (1)	0.07	0.07	− 0.07 to 0.21	38.00	0.98	0.332
	Wood * Recovery	− 0.09	0.10	− 0.3 to 0.11	38.00	− 0.90	0.374
	Wood * Task (1)	− 0.06	0.10	− 0.27 to 0.14	38.00	− 0.62	0.540

Significant predictors (p < 0.05) are shown in bold
SE: standard error; CI: confidence interval; df: degrees of freedom; t: test statistic t; p: p-value
*Interaction between predictors