This study investigates the effect of upregulating prefrontal cortex activity on risk-taking, and antisocial and aggressive behavior in violent offenders. In the double-blind, randomized controlled trial, using a within-subject crossover design, each participant will undergo anodal transcranial direct current stimulation of the right dorsolateral prefrontal cortex and sham stimulation. After each stimulation session, neural activity and behavioral responses to tasks assessing risk-taking and aggressive behavior will be recorded. The effect of tDCS on violent offenders will also be assessed in comparison to age and gender-matched healthy controls.
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Number of balloon pumps in the Balloon Analogue Risk Task after stimulation
Timeframe: Within 1 hour after the 20-minute tDCS or sham session ends
Neural activity during Balloon Analogue Risk Task after stimulation
Timeframe: Within 1 hour after the 20-minute tDCS or sham session ends
Aggressive behavior after stimulation
Timeframe: Within 1 hour after the 20-minute tDCS or sham session ends
Neural activity during aggression task after stimulation
Timeframe: Within 1 hour after the 20-minute tDCS or sham session ends
Antisocial behavior inclinations after stimulation
Timeframe: Within 1 hour after the 20-minute tDCS or sham session ends