Fig. 2: Increase in ACC beta power in response to the rich stimulus during the delay period.
From: Beta activity in human anterior cingulate cortex mediates reward biases
a Delay period starts from the button press and ends when feedback appears on the screen. b Differences in beta (12–30 Hz) power between the rich and lean trials are plotted at each sEEG contact. The color represents the t value comparing rich with lean trials. Red indicates greater power during rich trials. c Beta power change during the delay period. Red indicates rich trials while blue indicates lean trials. Trials are time-locked to the button press. The horizontal bar indicates time points in the cluster that are statistically significant (p < 0.05), as determined by two-sided cluster-based permutation test. Data are presented as mean values ± SEM. Source data are provided as a Source Data file.
