Tower of London — task load contrast. Main task effect and group comparisons with and without fatigue as a covariate (differences were considered statistically significant at cluster-corrected pfwe < .05; shown at p < .001, except for non-significant difference pre-ChT+ > NC, shown at p < .05; brighter colors indicate higher T-values); pre-ChT+, patients with BC before chemotherapy; pre-ChT−, patients with BC not scheduled to undergo chemotherapy; NCs, no-cancer controls.