TABLE 5.

Brain region-specific parameter estimates for fractional anisotropy generated using the Gompertz model^a.

	AR			SR			Pooled SEM			P-valueb
ROI parameterc	a	b	g	a	b	g	a	b	g	a	b	g
Corpus callosum	0.30	−1.00	1.00	0.30	−1.00	1.00	0.001	0.002	0.001	0.449	0.405	0.748
Cerebellum	0.31	−1.00	1.00	0.31	−1.00	1.00	0.002	0.001	0.001	0.167	0.557	0.745
Left caudate	0.31	−1.00	1.00	0.30	−1.00	1.00	0.002	0.000	0.000	0.858	0.340	0.584
Left hippocampus	0.36	−1.08	1.04	0.37	−1.13	1.12	0.005	0.040	0.042	0.213	0.181	0.160
Left internal capsule	0.31	−1.00	1.00	0.32	−1.01	1.01	0.005	0.001	0.001	0.513	0.405	0.326
Left side	0.52	−1.61	1.75	0.53	−1.37	2.09	0.008	0.294	0.263	0.050	0.287	0.106
Right caudate	0.34	−1.00	1.00	0.35	−1.00	1.00	0.006	0.001	0.002	0.799	0.139	0.355
Right hippocampus	0.30	−1.00	1.00	0.30	−1.00	1.00	0.002	0.000	0.000	0.235	0.093	0.093
Right internal capsule	0.32	−1.00	1.00	0.33	−1.00	1.01	0.008	0.001	0.002	0.081	0.687	0.013
Right side	0.51	−1.52	1.51	0.53	−1.35	2.23	0.008	0.377	0.289	0.090	0.374	0.639
Thalamus	0.37	−1.06	0.98	0.38	−1.04	0.99	0.005	0.024	0.020	0.253	0.150	0.142
FA mask	0.31	−1.00	0.99	0.32	−1.01	1.01	0.003	0.011	0.012	0.052	0.353	0.347
White matter mask	0.37	−1.16	1.12	0.37	−1.23	1.24	0.003	0.069	0.065	0.743	0.266	0.061

^aAR, artificially reared pigs; ROI, region of interest; SEM, standard error of the mean; SR, sow-reared pigs.

^bP-values derived from two-sample t-test comparing pigs raised in different early-life environments and group-housed in a common setting starting at postnatal week 4. Significant P-values are shown in bold text for emphasis.

^cParameter estimations for each outcome were computed for maximum absolute (i.e., plateau) value (a), onset of initial developmental increase (b), and overall rate of development (g).