Fig. 4: Stimulation effects on confidence.
From: Direct stimulation of anterior insula and ventromedial prefrontal cortex disrupts economic choices

Dots represent individual difference in confidence ratings between trials with and without intracranial electrical stimulation for each stimulation site in the anterior insula (aIns; left) and ventromedial prefrontal cortex (vmPFC; right). Bars and error bars respectively represent mean and SEM across stimulation sites. The stars indicate the main effect of stimulation (F1,70 = 10.3, p = 0.002), obtained when examining the effect of stimulation conditions and clusters on confidence ratings using a linear mixed-effects model with participants (n = 12) and stimulation sites (n = 37) as random effects. **p < 0.01.