Table 4.

Mediation estimates. Age served as predictor, VLMT recognition and TMT-diff as dependent variables, and R2* and MT as mediator. The labels a and b represent the indirect pathway, while c' represent the direct pathway.

Effect	Label	Estimate	SE	Z	p-value	% Mediation
R2* and VLMT recognition
Indirect	a x b	−0.079	0.033	−2.370	0.018	29.80
Direct	c'	−0.186	0.063	−2.929	0.003	70.21
Total	c' + a x b	−0.264	0.065	−4.038	< 0.001	100
MT and VLMT recognition
Indirect	a x b	−0.181	0.074	−2.456	0.014	68.50
Direct	c'	−0.083	0.095	−0.875	0.382	31.51
Total	c' + a x b	−0.264	0.065	−4.038	< 0.001	100
R2* and TMT-diff
Indirect	a x b	0.085	0.082	1.033	0.302	10.88
Direct	c'	0.697	0.284	2.458	0.014	89.12
Total	c' + a x b	0.782	0.290	2.693	0.007	100
MT and TMT-diff
Indirect	a x b	0.650	0.265	2.449	0.014	64.24
Direct	c'	0.361	0.371	0.975	0.330	35.76
Total	c' + a x b	1.011	0.282	3.581	< 0.001	100