Machiavellians experience positive emotions to sad videos (Ali et al., 2009) and sad emotions to neutral videos.  While watching sad, amusing, and neutral videos Machiavellians(MACH) will self-report emotions and an fMRI will measure reward circuit, anterior cingulate cortex (ACC), and amygdala activity.  Mach will show pleasant emotions during sad videos, but negative emotions during neutral videos.  We expect activation in reward circuit for sad and activation in ACC and amygdala for neutral videos.