Figure 4.

Frequency Learning Model Neural Correlates

(A) Uncertainty on fMRI day 2 (i.e., entropy of posterior probability of current stimulus before updating) correlated with pgACC and bilateral insula (pgACC peak coordinates [13, 41, 14], T = 5.91, Cohen’s d = 1.36, sagittal and coronal views both at p < 0.001 uncorrected, see Table 2 for multiple correction statistics).

(B) Overlay of pgACC activation from both uncertainty (blue) and searchlight (red) analysis (uncertainty visualized at Z>3.2, searchlight at Z>2.8).

See also Figure S3.