Figure 4.

Model estimates adjusted for sex, gestation, and baseline oxygenation. Values are mean with 95% confidence intervals. (A) Effect of laterality (control N = 18, intervention N = 14). (B) Effect of postnatal day (control N = 19, intervention N = 16). (C) Effect of sex (control N = 18, intervention N = 14). * Significant change from baseline. ^a,b Different letters represent significant differences among periods. ^§ Significant difference between assessment 1 and assessment 2. ^∆ Significant group difference. ^† Significant sex difference. Statistical significance taken as p < 0.05 for all comparisons. P1: period 1 (smell exposure in intervention group). P2: period 2 (taste exposure in intervention group). P3: period 3 (feeding period in both groups). O₂Hb = oxygenated hemoglobin.