Table 2.

Regions demonstrating a significant modulation by boundary salience

Regions modulated by salience	Cam-CAN			studyforrest			studyforrest with covariates
	F(1,17)	p	R2	F(1,148)	p	R2	F(1,129)	p
Hippocampus	18.6	0.0005	0.04	23.4	3.3 × 10−6	0.02	9.1	0.003
Cingulate gyrus, posterior division	30.5	3.7 × 10−5	0.1	25	1.6 × 10−6	0.02	8.3	0.005
Precuneous cortex	22.6	0.0002	0.14	11.2	0.001	0.01	3.6	0.06
Parahippocampal gyrus, posterior division	16.1	0.0009	0.09	14	0.0003	0.01	1.1	0.3
Lingual gyrus	17.5	0.0006	0.16	15	0.0002	0.03	0.02	0.89

Regions modulated by nObservers	F(1,17)	p		F(1,148)	p		F(1,129)	p
Hippocampus	18.6	0.0002	0.04	17.7	4.5 × 10−5	0.01	4.7	0.03
Cingulate gyrus, posterior division	30.5	6.6 × 10−5	0.1	20.3	1.3 × 10−5	0.01	5	0.03

Shown are regions from the whole-brain ROI-based analyses that demonstrated a significant modulation by salience (top) or by nObservers (bottom) in both experiments after correction for multiple comparisons (using Holm–Bonferroni). p-values and F-values are presented for the analyses both without covariates (both experiments) and with covariates (studyforrest only). Effect sizes (R²) were calculated based on the model including only the boundary effect (salience/nObservers) as a fixed effect. Region names were taken from the HOA atlas.