Social 1 Flashcards
Give examples of aggressive acts
Violence, physical harm, verbal abuse, threatening behaviour, vandalism
Give Baron and Byrne’s (1994) definition of aggression
The intentional infliction of some form of harm on others
Name 3 different forms of aggression
Physical, Verbal and Relational / Social
What is reactive aggression?
Impulsive
Reaction to the situation
Consequence of an individuals emotional reaction at the time
What is proactive aggression?
Goal directed
Carefully thought through
How can we say that aggressive behaviour is socially defined?
Because in some contexts, hitting someone may be seen as aggressive behaviour but in other contexts such as a sports, in particular boxing, it is seen as an acceptable behaviour
What are the biological theories of aggression?
Genetic
Instinct
Evolutionary
Biochemical - Serotonin, Testosterone and Alcohol
What are the social theories of aggression?
Frustration-aggression
Social learning theory
Describe aggression across the lifespan
- early signs of aggression are seen in the facial expressions of babies around 4+ months - protest and retaliation
- physical aggression is at its highest between 1-3 years
- interacting with other kids in the playground - pushing & shoving
- suggests there is an innate ability for us to be aggressive?
- levels of early aggression predict later behaviour (Olweus, 1979)
Describe the influences of genes on aggression
Selective breeding in animals - make them more or less aggressive
- Lagerspetz’s work with mice - 2 strains, agg and non-agg
Twins studies have given support for a genetic predisposition
- Christiansen (1977) investigated criminal behaviour in identical and fraternal twins
- correlation coefficient scores - IT = 0.74 and FT = 0.46
- Tellegen et al (1988) provided further support by investigating aggression in twins reared apart
- correlation coefficient scores - IT = 0.64 and FT = 0.34
Instinct theories - Ethologists
- study animal behaviour in their natural environments
- eg Imprinting
- behaviour is explained using:
Fixed Action Patterns - if something moves, the animal will follow
Releasing Stimuli - the thing that moves
Instinct theories - Lorenz (1966)
- believed that aggression worked the same way - it is a fixed action pattern
- felt that innate aggressive tendencies are elicited by environmental releasers
Issues with instinct theories
- circular method - more of a description rather than an argument
- fails to explain individual levels of aggression
- varying levels of aggression within an individual as well as varying levels of aggression in different societies
How do evolutionary psychologists view how specific behaviours have evolved and how does this relate to aggression?
- promote genetic survival
- supported by specific neurophysiological mechanisms
- aggression is adaptive because it aids:
1) the acquisition of resources
2) defence - survival against predators etc
3) the acquisition and maintenance of social status
4) mating success - genes are passed onto offspring
How is aggression and social status linked?
Appropriate aggression may be rewarded with an elevated social status
- ritualised aggression eg boxing
- soldiers - awards etc
- street gangs - seen as good and is a promoted behaviour
What is the link between Serotonin and aggression?
- is a neurotransmitter associated with sleep, arousal & aggression
- low levels are associated with:
- aggressive behaviour
- reactive aggression - impulsive
- seen in both humans (assault, violent suicide & self-injury) and animals (impulsive aggression in monkeys)
- high or low levels awe associated with positions in a dominance hierarchy
Eg Raleigh et al (1991)
- artificially manipulated levels of serotonin in vervet monkeys
- high levels of serotonin - decrease in aggression
- low levels - increase in aggression
How is aggression constrained?
Aggressive behaviours can be regulated by:
Threat displays - eg howler monkeys, physical intimidation
Appeasement displays - eg dogs exposing their bellies
- allows encounters to happen without the physical side of aggression
How does alcohol influence aggression?
50% + of violent crimes are committed when drunk
Richardson and Budd (2003)
- young heavy drinkers are 5 and a 1/2 more likely to be violently aggressive
Why does alcohol increase aggression?
Reduces our inhibitions
- voice our opinions, don’t control our impulses
- cognitive effort required to stop inhibitions coming out decreases due to the limited amount of glucose going to the brain
Narrows attention
- focus on aggressive cues only
Decrease in self-awareness
Disrupts executive functions in the brain
Differences in aggression between men and women
Men - far more likely to commit ‘violent aggression’ crimes
Boys are more physically aggressive than girls
Wilson & Daly (1988; 1985)
- Chicago murders - 80% committed by men as well as 80% of the victims being male
Ahmed & Smith (1994)
- gender differences in bullying - P’s asked if they had bullied
- 40% males reported, 30% females reported
Violent - M 36% & F 9%
Name calling - M 57% & F 74%
Describe the role of testosterone in aggression
- testosterone is associated with levels of aggression
Wagner et al (1980)
- mice were castrated which reduced aggression
- but testosterone restored aggression in the castrated mice
Neave & Wolfson (2003)
- territorial behaviour and the “home advantage”
- football players salivary testosterone levels were significantly higher before a home game rather than an away game
- perceived rivalry was also a key factor - higher testosterone levels were found for extreme rivals compared to moderate rivals
Describe the 2D:4D finger length ratio
- ratio of the 2nd and 4th finger is affected by exposure to androgens (eg testosterone) in the uterus
- ratios are found to correlate with:
Males with a low digit ratio are seen as more attractive (Neave et al 2003)
Describe Frustration-Aggression theory
- aggression is due to frustration (the context we are in)
- a range of aversive stimuli can increase aggression:
- heat
- irritants (noise & air pollution)
- social stress (crowding), rejection and exclusion