Ch 9 - Aggression (Exam 3) Flashcards
aggression
- intentional behaviour aimed at causing harm or injury to another person
social/relational aggression
- aimed at hurting feelings or social status
- gossiping
hostile/reactive aggression
- motivated by the desire to release feelings of aggression and hostility
- end goal of aggressive action itself
instrumental aggression
- aggression used as a tool to reach another objective
violence
- all violence is aggression, not all aggression is violence
- only extreme physical cases
Lorenz’s ethological model of aggression
- people are vulnerable to a build up of aggressive energy
- aggressive acts = discharge of energy
- people must release this energy through catharsis/be given appropriate channels
does catharsis reduce aggression?
- temporarily, not in long term
- increases it: reinforcement/habits
evolutionary perspective
- environmental pressures resulted int he selection of a genetic predisposition towards certain types of aggressive behaviours
- mechanism for dealing with threats
the murderers study
- murderers show a lack of activation in the prefrontal cortex
- reduced grey matter volume in the prefrontal cortex of antisocial populations
- less inhibition of primitive brain structures
associated behaviours with reduced prefrontal functioning
- impairments at an emotional, behavioural, personality, social, and cognitive level
- risk taking, impulsivity, lack of self-control, social skill impairment
the calculated killer
- takes high prefrontal activity for this level of planning
- greater activation in subcortical limbic system
temperament correlation
- difficult temperament in childhood: negative mood, impulsivity, intense emotional expression, low self-regulation
- temperament assessed before the age of 31 months predicted delinquency and aggressiveness at age 13
warrior gene story (Brunner)
- males showed tendency towards violence and impulsivity
- same genetic defect in the MAOA gene
- crucial role in breaking down key neurotransmitters that are involved in regulating mood and behaviour
the warrior gene study (Caspi)
- antisocial behaviour highest in those who had experienced childhood maltreatment and had the low activity MAOA gene
polymorphisms and MAOA gene
- different versions of same gene
- 30% of pop carries gene with lower enzyme activity, leads to slight imbalances in neurotransmitter levels
- other 70% have normal
testosterone link
- increases the likelihood of a fight response and decreases the likelihood of a flight response
- early development and activation in childhood
- temporary spikes
- relationship to violent crime
low cortisol
- high levels of cortisol can inhibit testosterone activity
- aggression is influenced by high testosterone and low cortisol
frustration aggression hypothesis
- aggression arises as a response to frustration, always
- frustration occurs when an external obstacle interferes with an individuals ability to achieve a goal
displace aggression
- frustration lead to aggression not directed at the original source of frustration
revised frustration-aggression hypothesis
- frustration only leads to aggression when it triggers anger
- frustration may fuel anger more strongly when it’s perceived as deliberate
aggression cues
- when cues are present, individuals who are already angry are more likely to resort to aggressive behaviour
- physical objects like weapons or even symbolic reminders
the weapons effect study
- aggressive cue condition led to more shocks
2 learning mechanisms
- reinforcement
- observational learning
vicarious reinforcement
- we model behaviour when we witness reinforcement
Bobo doll study
- kids who watched adults behaving aggressively were more likely to behave aggressively as well
media influences
- holistic attribution bias
- normalization
- social problem solving
- desensitization
- peer rejection
- vicarious reinforcement
group influences
- transfer of responsibility
- group polarization
- deindividuation
general aggression model
- inputs: what a person brings to the situation
- routes: where input variables can influence outcomes
- affects, cognitions, arousals - outcomes: appraisal and decision processes
- immediate based on internal state
- sometimes reappraisal
aggressive cognitions
- normalization of violence
- beat or be beaten
- I am the law
- I get out of control