Table 2.

Within-network mean connectivity differences based on age and practice.

Older Adults	Younger Adults	Dependent Variables	Median1	Median2	Median Diff	U-Statistic	p-Value	FDR-Adjusted p-Value	Rank Biserial Correlation (r)
OACs vs. YACs		DMN	0.054	0.060	−0.006	49	8.97 × 10−3 *	2.38 × 10−2 *	−0.56
		DAN	0.053	0.058	−0.005	59	2.79 × 10−2 *	6.55 × 10−2	−0.48
		FPN	0.055	0.060	−0.005	61	3.44 × 10−2 *	7.77 × 10−2	−0.46
		LIN	0.055	0.060	−0.005	82	2.13 × 10−1 *	3.72 × 10−1	−0.27
		SMN	0.055	0.059	−0.004	57	2.25 × 10−2 *	5.50 × 10−2	−0.49
		VAN	0.054	0.059	−0.005	49	8.97 × 10−3 *	2.38 × 10−2 *	−0.56
		VIN	0.054	0.060	−0.007	52	1.28 × 10−2 *	3.26 × 10−2 *	−0.54
No Practice	Practice	Dependent Variables	Median1	Median2	Median Diff	U-Statistic	p-Value	FDR-Adjusted p-Value	Rank Biserial Correlation (r)
OACs vs. TCOAs		DMN	0.054	0.069	−0.015	13	4.02 × 10−5 *	1.40 × 10−4	−0.88
		DAN	0.053	0.069	−0.015	26	3.61 × 10−4 *	9.17 × 10−4 *	−0.77
		FPN	0.055	0.070	−0.014	27	4.22 × 10−4 *	1.03 × 10−3 *	−0.76
		LIN	0.055	0.070	−0.015	37	1.87 × 10−3 *	4.06 × 10−3 *	−0.67
		SMN	0.055	0.069	−0.014	25	3.08 × 10−4 *	8.17 × 10−4 *	−0.78
		VAN	0.054	0.069	−0.015	30	6.71 × 10−4 *	1.52 × 10−3 *	−0.73
		VIN	0.054	0.069	−0.015	30	6.71 × 10−4 *	1.52 × 10−3 *	−0.73

Within-network comparisons by age: OACs vs. YACs and practice OACs vs. TCOAs. *, p < 0.05. OACs = older adult controls; YACs = younger adult controls; TCOAs = Tai Chi older adult practitioners; DMN = default mode network; DAN = dorsal attention network; FPN = frontoparietal network; LIN = limbic network; SMN = somatomotor network; VAN = ventral attention network; VIN = visual network.