... to account for justified and unjustified frustration. When Doob and Sears experiment was re-done with justified frustration the anger decreased significantly. * Berkowitz aggression effect - When participants were electrocuting each other, the presence of a weapon, a symbol, associated with aggression and violence, the levels of electrocution increased. * Berkowitz 'Behaviourist' position argues that aggression is a more general example of the relationship between unpleasant stimuli and negative effect. Negative effect is simply unpleasant emotions and feelings, such as anxiety, anger, annoyance or pain. This negative effect can trigger either 'fight or flight' as well as a set of associated thoughts and reactions related to such experiences. ...

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