Lecture 2 Flashcards

1
Q

Define aggression

A
  • A behaviour that is intended to harm another person who is motivated to avoid that harm
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2
Q

What are the 5 components of aggression?

A
  • Aggression is a behaviour, thoughts of being aggressive are not included. Getting angry or having hostile attitudes are not aggression BUT can be a measure of aggression
  • Behaviour must be deliberate/intentional
  • Behaviour must aim to harm the recipient in some form = harm is physical and emotional
  • Aggression must be towards another person e.g punching wall in private = not aggression, BUT used as intimidation = aggression
  • Action aimed at a person who is motivated to avoid the harm = hard to discern but self-harm/suicide is not aggression
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3
Q

What is the difference between violence and aggression?

A

Violence is subset of aggression = physical damage

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4
Q

What are the terms for aggression?

A
  • Reactive: hostile, hot-blooded vs Proactive: instrumental, cold blooded
  • Direct: face to face, indirect: slightly more anonymous e.g social media
  • Physical vs Verbal
  • Domestic Violence: coercive controlling violence
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5
Q

Elaborate Proactive vs Reactive:

A
  • Major distinction is motivation in aggression
    Proactive:
    • For gain e.g money/sex
    • Unprovoked
    • Planned/premeditated
    • Predatory
    • Little emotion - cold-blooded
      Reactive:
    • Reacting to anger/frustration
    • Provoked
    • Impulsive
    • Defensive
    • Emotion - hot-blooded
      Distinction is not binary and some acts are hard to classify
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6
Q

How to study violence?

A
  • Crime stats: using convictions BUT most acts are not reported
  • Informants: professionals or others that know them well report on activities but this has ethical issues
  • Lab behaviour: difficult to get people to be aggressive in lab, some studies provoke aggression outside the lab e.g bump into a student in the corridor and insult them
  • Self-report: questionnaires for behaviour: issues of lying and self-awareness as well as ethics and pragmatics
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7
Q

What did Cohen et al do? (South)

A
  • Thought violence occurred more in the South of USA due to excess feuds = farm type places = need to defend territory = honour culture
  • Students studying in a Northern State, divided them into the state of origin
  • Examined reaction to an insult - just before experiment, a confederate bumps into them in the corridor and calls them an asshole
  • Took a range of measures from levels of testosterone to strength of handshake
  • Found those who had been bumped into shook hands more firmly and had higher testosterone levels
  • Northern - T had gone up but handshake did not change a lot, South - T had a huge increase and handshake changed a lot
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8
Q

What did Milgram do?

A
  • How violent someone would be to someone else under instructions to do so: learning experiments and memory as a cover: multiple ppts thought they were shocking the learner to their death
  • Now use noise blasts or hot sauce to look at levels of aggression
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9
Q

What did Anderson and Bushman do?

A
  • Lab experiments can test causal propositions e.g playing a violent video game increases aggression, and therefore discover theoretical relations among variables that are never sufficiently isolated in the real world
  • Meta-analysed studies in real world and in lab = confirmed same pattern for both types of study
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10
Q

What do video games do to aggression?

A
  • Two groups: one played mortal combat and the other played golf for 10 mins
  • Competed against a confed on a reaction time task
  • Ppts received a punishment of a white noise blast
  • First half of trial ppts told opponent set level of punishment but this was reversed in second half
  • Confed was female
  • Told purpose was to look at effect of video games on RT
    RESULTS:
  • Video games do cause greater aggression AND effect is stronger for men
  • Without the cue to violence (golf), men were no more aggressive than women
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11
Q

What is the relationship between Gender and Aggression?

A
  • Men are more aggressive/violent: mate selection, defending territory
  • Homicide is carried out nearly exclusively by men (10:1)
  • Field and Lab studies show males show greater physical aggression (especially unprovoked)
  • No differences in verbal aggression
  • Females may show more indirect aggression - at least young females
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12
Q

What is the relationship between Drugs/Alcohol and aggression?

A
  • In 50% of official recorded violence, person is intoxicated
  • Even in lab studies with small amounts of alcohol, there is a clear effect of alcohol
  • But alcohol does not cause violence in itself - magnifies pre-existing problems
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13
Q

Genes/Env and aggression?

A
  • Nature vs nurture
  • Longitudinal study with children
  • Looking at childhood maltreatment: no, probable, severe
  • Looked at MAOA gene
  • Interaction between high MAOA and mistreatment = has effect but not much
  • Low MAOA and maltreatment = very antisocial and violent
  • Expression of genes depends upon environment
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14
Q

What are Aggression related cognitions?

A
  • Refers to beliefs and attitudes to aggression/violence
  • Implicit theories: individuals hold theories about how the world works
    STUDY:
  • Analysed offense transcripts and walk through offense
  • Used a grounded theory procedure - each statement is assigned to one or more categories, they found 4 main ones
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15
Q

What are the 4 aggression related cognitions?

A
  • Beat or be beaten: See violence as important in societal place and in hierarchy - vigilant for possible challenges to their self-image
  • I am the law: see themselves as leaders and act as judge & executioner
  • Violence is normal: means of solving problems and does not have any negative connotations
  • I get out of control: views violence as inevitable because they cannot stop it
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16
Q

What mental health problems is Aggression related to?

A
  • Personality Disorders
  • Psychopathy
  • Psychosis
  • PTSD
  • Substance abuse/dependence
  • Mood disorders
  • Autism
  • Frontal Lobe damage
17
Q

What is the relationship between Self-esteem and Violence?

A
  • Popular belief = Low self-esteem linked to other problems
  • High self-esteem especially if overinflated or threatened leads to aggression
18
Q

What was a study looking at self-esteem and narcissism?

A
  • Measured global self-esteem and narcissism in 502 students in Wales and Malaysia
  • Recorded violence by the RPQ and split into proactive and reactive violence
  • Low SE predictive of reactive violence
  • High Narc predictive of proactive violence
19
Q

Why is Amygdala important?

A
  • Processes emotions and processing fear in particular
  • Destroy amygdala = no emotional conditioning
  • Patient SM = bilateral amygdala damage for 20 years = appears fearless
  • She seems excited and showed no signs of fear but did show other emotions
  • Showed exaggerated panic and fear when given CO2 to breathe
20
Q

What was a study looking at the amygdala and violence actions?

A
  • Looked at size of amygdala
  • Followed 503 boys since age 5 to age 26
  • Measured amygdala volume at 26 in 20 chronic serious violence, 16 transient violence and 20 no serious violence
  • People who are very aggressive have small amygdala for both proactive/reactive aggression
  • People who were violent after the scan - those who had been violent had small amygdala, and those who had not had a bigger amygdala
21
Q

How is reactivity of amygdala reflect violence?

A
  • Looked at responses of amygdala to pictures of fearful expressions in juveniles with conduct problems
  • Also examined extent of Callous-unemotional traits (psychopathic type traits), and externalising problems (lashing out)
  • More CU traits, amygdala reacted less to pictures BUT more amygdala activation = more externalising behaviours = acting strongly to pictures
  • Too little = proactive aggression and lack of fear/empathy/punishment
  • Too much = reactive aggression and things appear hostile/fearful
22
Q

What is the role of the prefrontal cortex?

A
  • Divided into Dorsolateral prefrontal cortex: executive function e.g working memory
  • Ventrolateral Prefrontal: less known = response inhibition and direction of attention
  • Orbitofrontal Cortex: represents emotion, reward and decision making
23
Q

Elaborate on the Prefrontal Cortex?

A
  • Damage typically leads to a range of problems
  • Neuropsych tests
  • Inhibition of pre-potent response
  • Damage linked to explosive anger and violent histories
  • Slow to mature and quick to fade at older ages
  • Childhood mistreatment = can stop it
  • Other species struggle or have smaller cortexes
  • Temporary lesions via alcohol
24
Q

What is damage to Orbitofrontal Cortex?

A
  • Subtle
  • IOWA gambling task: give ppt 4 decks of cards not told about rewards and punishments
  • Turning Decks A/B gets $100
  • Turning Decks C/D gets $50
  • However occasional punishments - A&B £250, but only $50 for C/D
  • Best to play C/D but initially A&B
  • Most people start by playing decks at random and then move to playing C/D but cannot tell you why
  • Patients with OFC play decks A/B = important in using emotion in guiding behaviour - even if we do not know it’s doing this
25
Q

What is Somatic Marker Hypothesis?

A
  • Past events lay down somatic markers (feelings) that can guide decision making - sometimes we may not be conscious of these feelings
  • Contrasts with logical cost-benefit analysis of situation
  • May be faster and used when slow, cost-benefit is not available
26
Q

What are the top-down perspectives?

A

Suppression/regulation via OFC and ACG

27
Q

What are the bottom-up perspectives?

A

Signal and trigger via insula and amygdala