Week 4: Human Aggression Flashcards
What is violence?
- Aggression that has extreme harm as it’s goal
- all violence is aggression but not vica versa
What is aggression?
- “Behavior direct toward another individual that is carried out with the proximate intent to cause harm”
- “the target must e motivated to avoid the behavior”
Gender difference in animal aggressive behavior
- male animals more aggressive, more likely to attack, more likely to fight
Lorenz 1966; the Hyraulic Hypothesis; The energy model - aggression
- aggression instinctual
- not caused by the environment - rather it is released in certain circumstances
- needs to be ‘released’ regularly or becomes pent up
- basis for cartharsis model (now disproven)
- lack empirical support both in humans and animals
- dominance behavior - primates (e.g. Learn to both express and inhibit aggression)
Clinical Psychology - DSM-IV on aggression
- anti-social, narcissistic, borderline personality
- CD
- Addiction
- paranoia, delusions, psychosis
- Sadism, masochism
- intermittent explosive disorder
- adjustment disorder with conduct disturbance
- problems related to abuse or neglect
- conflict management, relationship systems, anger management, counseling for aggression
- interventions for anger and/or aggression
Cognitive psychology - neural networks view on aggression
- when we experiencing something, a cluster neurons (a node) is set aside to recognize it again,
- when we experience that thing again the node becomes activated
- nodes that are activated together become wired together
- the more often nodes are activated together, the stronger the links become
- because of these links, activating one node will begin to activate linked nodes
- if the same sequence plays out often enough, either in real life or vicariously (media, video game)
- then it becomes like a script that plays out the same way whenever it is triggered
Cognitive psychology - Cognitive Neo-Association Theory on aggression
- assumes that memories, thoughts and plans for action are linked together in the brain
- when one part of this network is activated, the link parts, also become activated
- the parts that are most strongly activated are the parts that will have the greatest influence on that person’s eventual actions
- unpleasant or threatening situations arouse negative feelings
- these in turn stimulate various thoughts, memories and physiological responses associated with both fight (anger) and flight (fear)
- depending the nature of the situation and the prior experiences and personality of the person, one tendency will come to dominate the other
- if anger/fight tendencies dominate, the types of thoughts, feelings as plans for action that are most strongly activated will usually increase the likelihood of an aggressive response
Script theory view on aggression
- proposed by Huesmann
- when a situation is very familiar we follow the script
- DV can occur in this way
Development psychology view on aggression
- develops over lifespan, large longitudinal studies
- constancy of trait aggression across lifespan
- influence of parents, media, environment
- gene-environment interactions
- hostile attributional bias
Emotion - aggression
- anger, shame, humiliation, jealousy linked with aggression
- frustration-aggression hypothesis
• all instances of aggression can be traced back to frustration
• the link b/w frustration and aggression is always increased anger
• clearly not always true (but often is)
Evolutionary psychology - aggression
- aggression ‘hard wired’
- links with animal work
- reproductive success
• protect territory and offspring
• sexual jealousy
• status, power and machismo to succeed
Health psychology - aggression
- particularly concerned with links b/w physical health and psychological health
- type A personality and heart disease
- anger and hypertension
- alcoholism and aggression
- injury, recovery, trauma
Learning theories - aggression
- underpins other approaches
- explain both the acquisition and the maintenance of aggressive behavior
- aggression is often learned
• classical conditioning
• instrumental learning- reward aggression, punish non-aggression (subtle or obvious)
- can be vicarious
• social learning
- neural networks include learned concepts and are developed through experience
- info processing is about learned patterns of responding
- scripts are learned
- learning shapes development
- genes affect us depending on environment
Social learning theories - aggression
- people acquire aggressive tendencies through direct experience or through observing -> bobo
- more likely to copy aggressive models
• who are respected, liked, high status
• who are familiar/similar
• who are rewarded for their behaviors
• if we have self-efficacy for aggression - imitation seems to be hard-wired from birth and to continue through the life span
Neurological/biological approaches to aggression
- genetics
- gene-environment interactions
- 16-17 genes are linked with aggressive behavior
- never direct - usually in conjunction with a particular type of environment or predisposition (e.g. Impulsivity) that enhances the likelihood of aggression
Genes linked with aggression
- serotonin deficits linked to aggression
- DA levels with ADHD, impulsivity
- Precursor genes - affect rate at which NT 5HT and DA are produced from precursor amino acids
- transmitter genes - linked to receptors for various DA and 5HT receptor types
- metabolite genes - involved in degradation of various NT
- conversion genes - responsible for conversion of one NT into another (DA to norepinephrine)
Biological approaches to aggression
Different brain structures
- damage to frontal lobes (uninhibited)
- activation of Limbic System (‘old’ part of brain; primitive instincts and survival)
- especially in Amygdala (emotion centre)
Hormones and aggression
- increased testosterone, decreased estrogen & progesterone
- linked to increased aggression
- women more aggressive at menses (low oestrogen, progesterone) than at mid-luteal phase (higher levels of both hormones)
The nervous system - aggression
- lower resting hr (even at 3)
- under-arousal of both the CNS and ANS
- lower electro-dermal, CVD and cortical arousal
- low basal cortisol (stress hormone) levels
Arousal and excitation transfer - aggression
- looks at interplay b/w ppls thoughts and their levels of physiological arousal
- Schachter and Singer injected people with adrenalin, then exposed them to actors either being silly or showing anger
- anger or euphoria response depending on their cognitive appraisal of the cause
- Zillman: excitation transfer: arousal dissipates slowly. If 2 events are separated by a short period of time, arousal from the first event might may be misattributed to the second event.
Org psych - aggression
- bullying in workplace
- workplace aggression
- indirect aggression
- dominance and status
Perception - aggression
- role of hat we see, hear, feel
- cues for fight or flight mechanisms, peripheral vision
- noise, heat and aggression
Personality approaches - aggression
- aggressive drive: Sigmund Freud, Thanatos, more advanced the more inhibition
- every person has innate aggressive and sexual drives
- trait aggression/anger
- aggressive personality types: narcissistic, psychopathic, Machiavellian, shame-prone, borderline/histrionic
- learned material becomes part of our stable
- schemas, scripts, expectancies, beliefs, attitudes
- linked together within neural network, linked to related feelings and memories and action tendencies
Relationship - psychology
- Indirect aggression and relational aggression
- DV
- child abuse
- power and dominance
- jealousy
- overlap with evolutionary psychology
- relational schemas