We experience arousal associated with our sympathetic nervous system when we witness aggression
However if children repeatedly view aggression on TV or play violent videogames they become habituated and the psychological effects are reduced
Repeatedexposure to violent media promotes a belief that using aggression as a method of resolving conflict is socially acceptable
Research into desensitisation:
Weisz and Earls
Showed Ps graphic rape scene
Male viewers showed greater acceptance of rape myths after watching a mock rape trial compared with male viewers of a non-violent film
They also showed less sympathy to the victim and less likely to find defendant guilty
No similar effect for females
Disinhibition - Exposure to violent media changes usual restraints:
Violence and aggression are antisocial, therefore there are powerful social and psychological restraints against using aggression to resolve interpersonal conflicts
Violent media gives aggressive behaviour social approval especially when effects on victims are minimised and appear justified
Usual restraints on individuals are disinhibited after exposure to violent media
Disinhibition is enhanced if aggression is rewarded:
Video games often show violence being rewarded and its consequences minimised or ignored
This creates new social norms in the viewer which are then strengthened
What is cognitive priming?
Repeatedexposure to aggressive media can provide us with a violent 'script' about how to behave to aggressive cues and how violent situations might play out
Huesmann says this script is stored in the memory so we become primed to be aggressive
This is an automatic process
The script is triggered when we encounter cues in a situation what we see as aggressive
Research into cognitive priming:
Fischer and Greitemeyer
Investigated song lyrics as a form of media violence
Male Ps listened to songs featuring aggressively derogatory lyrics about women
Compared with when they listened to neutral lyrics, Ps later recalled more negative qualities about women and behaved more aggressively towards a female confederate
Similar results were found with female Ps and 'men-hating' lyrics
Research support for Desensitisation:
Krahe et al
Showed Ps violent and non-violent film clips while measuring physiological arousal (Skin conductance)
Habitual viewers of violent media showed lower level arousal when watching violent film clips
Also reported lower levels of pleasant arousal and lower levels of anxious arousal
Lower arousal was correlated with unprovoked proactive aggression in a noise blast test
Alternative Explanation for Desensitisation:
Krahe et al failed to find a link between media viewing, lower arousal and reactive aggression
More valid explanation = Catharsis
Viewing violent media acts as a safety valve mechanism allowing people to release aggressive impulses without the need to behave aggressively
Research Support for Disinhibition:
Berkowitz and Alioto
Lab experiment - found that Ps who saw a film depicting aggression as vengeance gave more (fake) electric shocks of longer duration to confederate
Media violence may disinhibit aggressive behaviour when it is justified
This is because vengeance is a powerful justification for violence and justified violence is more likely to be seen as socially acceptable
Increases Validity
Strength of Disinhibition - Explains Cartoon Violence
According to SLT aggression carried out by media models is partially influential because it suggests that it is socially normative especially when it goes unpunished
Kirsh argued this can explain aggressive responses to cartoon violence
Children do not learn specific behaviours from cartoon models
What they do learn is that aggression is rewarding and achieves goals in a socially acceptable way