Neuromodulation can reduce aggressive behavior elicited by violent video games.

Area of Science:

• Neuroscience
• Psychology
• Media Effects

Background:

• Exposure to violent media is linked to increased aggression.
• The neural basis of this aggression and methods to reduce it remain unclear.
• The right ventrolateral prefrontal cortex (rVLPFC) is implicated in regulating aggressive impulses.

Purpose of the Study:

• To investigate the effect of anodal transcranial direct current stimulation (tDCS) over the rVLPFC on aggression.
• To test if rVLPFC stimulation can mitigate aggression associated with violent video game play.
• To explore the neural underpinnings of violent media-induced aggression.

Main Methods:

• Seventy-nine participants were randomly assigned to play a violent or nonviolent video game.
• Participants received either anodal or sham brain stimulation over the rVLPFC.
• Aggression was measured using the Taylor aggression paradigm, assessing both provoked and unprovoked aggression.

Main Results:

• Violent video game players showed higher unprovoked aggression than nonviolent game players under sham stimulation.
• Anodal stimulation over the rVLPFC eliminated this difference in unprovoked aggression.
• No significant effects were observed for provoked aggression, suggesting reciprocal responses.

Conclusions:

• Anodal tDCS over the rVLPFC can reduce unprovoked aggression linked to violent video games.
• The rVLPFC plays a role in regulating aggressive impulses triggered by violent media.
• This study offers insights into potential interventions for media-induced aggression.