Aggression- evolutionary explanations of Flashcards
what is believed from an evolutionary perspective
Humans are more likely to survive if they have access to resources, defend them, gain a mate and protect family
aggressive behaviour has evolved to support these goals
list the 3 functions of aggression
- Fittest and strongest are ensure to be selected
- ensure the survival of young offspring
- help distribute genes evenly across a population so a species is balanced out
what is the main belief of evolutionary explanations
main belief is that aggression in humans is because of sexual competition
name the research who found what males and females prefer in a mate
Buss (1989)- studied 39 cultures
found that
women- look for qualities of ‘resource potential’
men- look for fecundity (ability to produce lots of offspring)
Explain what men need to adapt and do to succeed in their genes being passed on
what is a way of beating competition
men need to be assertive and aggressive, to protect territory and productive hunting
the ability to eliminate competition successfully is through aggression, as this showed to be successful in order to secure a mate and transmit their genes to offspring
in what year did Buss suggest that not all aggression in humans involves males
what does this tell us about the development of aggression in females
women exhibit verbal aggression, to reduce the attraction of their female competitors, which evolved into an advantage for females who name-called
name the 2 things that fuels aggression in humans, which affects survival
- Infidelity (being unfaithful to spouse)
- jealousy
how can males use infidelity as an advantage
advantage of infidelity is an increased success in reproduction
how can females use infidelity an an advantage
advantage of infidelity is access to resources, protection and genetic diversification
but what are the threats that males anf females risk from happening if they commit infidelity
male run the risk of being with an unfaithful mate, and resourcing for offspring which arent their’s
female- run the risk of being with an unfaithful mate which diverts their resources from your offspring
list the 3 jealousy strategies to prevent infidelity
- Mate guarding
2.Male vigilance over a mates behaviour - punishment and threats
Name the researchers who found
‘direct guarding’ and ‘negative inducements’
Wilson and Daly (1996)
Direct guarding is physically restraining freedom
negative inducement is letting them know the potential consequences if they leave
what are the two types of infidelity
sexual and emotional
what did Brunt et al suggest was different in male and females development of aggression
Brunt et al suggested that:
males- anger and aggression is based on suspicion of their wife’s sexual infidelity
females- aggression stems from a lack of emotional support
strength for evolutionary explanations
P- research support
E- eg. Buss et al
m and w look for diff qualities in a potential mate
E- implys males need to be more aggressive and assertive to keep away rivals, to know their genes will be passed on
L- this means that the different qualities will shape each behaviour