This shows the location of brain regions involved in emotion processing: the orbitofrontal cortex (green), cingulate (red), insula (purple), hippocampus (yellow) and amygdala (blue). The dots show where electrodes were placed to monitor seizures in patients with epilepsy. These implants allowed scientists to decode the brain's emotions with precision. Brain-zapping implants that fight depression are inching closer to reality. (Learn more: https://www.sciencenews.org/article/brain-electric-implan