3.3. Psychophysiological interactions
Task-related connectivity via PPI analysis revealed that females had
stronger functional connectivity between the left OFC and bilateral
somatosensory cortex, bilateral middle cingulate cortex and precuneus,
compared to males (Figure 2b). Gestational weeks and age at scan from
birth did not differ between groups (see Table 1), nevertheless
second-level PPI models were not controlled for the effects of these two
variables. Results of left-OFC connectivity networks in the smaller
sample (N = 13) partially resemble results obtained from the whole
sample and are reported in the Supplementary Material (Figure S3).
Considering right-OFC as seed-region, no significant results emerged in
the whole sample (N = 18) and in the smaller sample (N= 13).