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bio to aggression
Fichas del conjunto (22)
- 1A01 XYY47 XYY karyotype with extra Y chromosome thought they were more aggressive
- 2A01MAOAmice with abnormal MAOA were more likly to be aggressive.it produecs an enzyme thatregulats metabosim of nerotransitters.An aggressive dutch family had rare MAOA gene.
- 3A01 selective breedingpicking a trait e.g. aggression and breading for several generates to get the desired trait by picking off spring that appear to have the trait
- 4A01 limbic systemIt includes the amygdala and the hippocampus.it is involed with motivation emotions and insinct behavous like aggression amygdala most relatd to aggresion
- 5A01 frontal cortexits function is social regulation and interaction.
research shows that frontal cortex is linked with amygdala so therefore invoked in aggression - 6A01 serotoninthought to reduce aggression by inhibiting responses to emotional stimuli that lead to aggregation. low levels associated with aggression in animals and humans
- 7A01 testosteroneis produced in the leydig cells in the testes and ovaries it is important at
prenatal development of limbic system
time of b strengthening neuronal circuits
and puberty.
Acts on synapse in serotonin system - 8A01 basalhigh testosterone causes aggression
- 9A01Reciprocalhigh testosterone cause aggression and aggressive behaviour leads to an increase in testosterone
- 10314sample of 314 hospital patients with XYY chromosomes were more aggressive than normal people.suggests aggression is related to genetics
- 11314 howeverthe researcher already believed that chromosomes led to aggression,he let his belief affect his findings so question the validity of the conconution.
- 12110 MAOAstudy of 110 men found abnormality in MAOA gene was linked with aggression.also abnormality was linked to increases in noradrenaline .shows AMOA is linked to aggression.
- 13mice19 generations of mice looked at the biting behaviour it was found that 52% of the aggressive group come paired to 5% in no aggressive.this shows genetics have a strong influence on aggression.
- 14mice howeverboth strains could be conditioned not to show aggression. it shows that some sort of reinforcement is made to be aggressive
- 15phinea cagehe damaged his frontal cortex that lead to an increase in aggressive and impulsive behaviour
- 16cage howeverthe precise location of the damage is not clear making it difficult to draw conclusions
- 17foxesstudy looked at tame silver foxes in russia and found they had higher serotonin than wild ones. suggests that high serotonin lowers aggression
- 18remove hipposurgical removal of amygdala in man reduced violent people but also removed other emotions.suggests that amygdala is involved in aggression
- 19mice castcastrated mice to reduce testone found it led to a decrease in aggression.when given testone aggression went back to normal.
- 2021 youngprisons measured testosterone levels of fighting verbal and past violence found violent prisoners had high testosterone levels and non violent had low.
- 2130 maleinteract with gun or game for 15m.
measured testo befor and after and hot sauce 1-10 .found gun group increased there testosterone and higher sauce.
shows support for reciprocal model - 22stress horshown link between high stress hormones adrenaline and noradrenaline and high aggression
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- Fichas sobre bio to aggression, creado por Luke Robson el 05/02/2015.
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- Luke Robson
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