“Behavior intended to harm another behavior.” (Kassin et al, 2014)
“Physical or verbal behavior intended to hurt someone.” (Myers, 2013)
Aggression
Excludes unintentional harm
Actions that may involve pain as an unavoidable side effect of helping someone
Related Terms:
Violence
Extreme acts of aggression
Anger
Strong feelings of displeasure in response to a perceived injury
Exact nature of these feelings
Hostility
Negative, antagonistic attitude toward another person or group
Anger and hostility are often closely connected to aggression (but not always)
Aggression can occur without a trace of anger or hostility
2 Types of Aggression:
Proactive or Instrumental Aggression
2. Reactive Aggression or Emotional Aggression
Proactive Aggression or Instrumental Aggression
Harm is inflicted as a means to a desired end
Aggression aimed at harming someone for personal gain, attention, or even self-defense
Reactive Aggression or Emotional Aggression
Harm is inflicted for its own sake
Often impulsive, carried out in the heat of the moment
5 Theories of Aggression:
Evolutionary Approach
The Cathartic Approach
Social Approach
Excitation-Transfer Model
Learning theories of Aggression
2 Reinforcement of Learning Theories of Aggression
Operant Reinforcement
Social Learning Theory
Excitation-Transfer Model
Non-specific arousal can and inadvertently influence aggression
e.g., elevated heart rate when we have arguments with someone but also when we find somebody attractive, or ride a rollercoaster
We differentiate the physiological arousals by giving them a label, depending on the external cues
Residual Arousal
Arousal in one situation can carry over into a completely different situation
The Social Approach
Cognitive Neoassociationistic Model (Berkowitz, 1969, 1989)
Provides an explanation for aggression that also takes into account environmental conditions, or cues that are generated by frustrating situations that lead to aggressive behavior
Aggressive behavior would only arise if there were appropriate cues in the environment – a person or object
The Cathartic Approach
Psychodynamic Theory:
Two innate instincts: life (eros) and death (Thanatos)
Freud: death instinct initially led to self-destructive behavior; later becomes redirected from the self toward others, as aggressive behavior
The Cathartic Approach
Frustration-Aggression Hypothesis
Aggression resulted from frustration at a particular person or event (Dollard, Doob, Miller, Mowrer, & Sears, 1939)
If aggression cannot be directly targeted at the cause of frustration because the person is too physically or socially powerful, or because the cause is a situation rather than a person, it may be redirected onto a more realistic target
The Cathartic Approach Limitations:
In a study, angry participants continued to show aggression towards the person who caused the anger even after engaging in a cathartic exercise
The Evolutionary Approach
Social behavior has evolved over time, passed down from generation to generation (Simpson & Kenrick, 1997)
Use of aggression in ensuring genetic survival is particularly evident in animals
The Evolutionary Approach Limitations
Inherently difficult to provide supportive evidence because evolutionary tendencies have presumably developed over many thousands of years – hard to test in a laboratory
We are not only aggressive to protect ourselves and our offsprings – people show aggression towards their closest relatives instead of protecting them.