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PSYB10H3 (558)
Lecture

aggression

7 Pages
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Department
Psychology
Course Code
PSYB10H3
Professor
Elizabeth Page- Gould

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PSYB10 LEC 21 Aggression
Aggression
Intentional behaviour aimed at causing physical or psychological pain
Two dimensions of classification
Type of pain
Physical aggression : aggression inflicting physical pain
Verbal or relational aggression: saying or doing psychologically hurtful things
Goal of pain
We make a distinction between hostile and instrumental aggression
What is the goal of the aggression
Hostile aggression
Aggressive behaviour that:
Stems from feelings of anger
Has the goal of inflicting pain
Upset and want to inflict pain on someone else
Instrumental aggression
Aggressive behaviour that:
inflicts pain
The pain is a middle step toward another goal
The outcome goal is not pain, but your willing to cause pain in the process
Why we hurt
Genetic predisposition in humans (innate that will make you aggress)
Chemical influence (I was drunk)
Frustration-aggression theory (bad day)
www.notesolution.com
Social learning theory ( too much violence in the media)
Genetic predisposition
Basic theoretical premise:
Aggression is adaptive and has survival value
Earliest evidence
Animals can be bred for aggression (Rottweiler’s)
Twin studies find high heritability for aggression
Amygdala
Stimulating amygdala can lead to aggression
Depends on context:
Sometimes leads to withdrawal/fear
In a context where you’ll probably win, stimulation will result in aggression
In a context where you will lose, stimulation will result in fear and withdrawal
Relative social status matters
Exposed to a lower status person, express aggression. Exposed to a higher status
person, express withdrawal
Prefrontal cortex
PFC may be the regulator of aggressive impulses
generally involved in planning & behavioural regulation
relation of PFC and aggression:
murderers have less PFC activity than normal controls
PFC becomes activated when contemplating and aggressive act
Testosterone
The steroid hormone testosterone may increase aggression
Greater exposure to testosterone in womb linked to aggression
www.notesolution.com

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Description
PSYB10 LEC 21 Aggression Aggression Intentional behaviour aimed at causing physical or psychological pain Two dimensions of classification Type of pain Physical aggression : aggression inflicting physical pain Verbal or relational aggression: saying or doing psychologically hurtful things Goal of pain We make a distinction between hostile and instrumental aggression What is the goal of the aggression Hostile aggression Aggressive behaviour that: Stems from feelings of anger Has the goal of inflicting pain Upset and want to inflict pain on someone else Instrumental aggression Aggressive behaviour that: inflicts pain The pain is a middle step toward another goal The outcome goal is not pain, but your willing to cause pain in the process Why we hurt Genetic predisposition in humans (innate that will make you aggress) Chemical influence (I was drunk) Frustration-aggression theory (bad day) www.notesolution.com
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