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Aggression > Genetic factors > Flashcards

Genetic factors Flashcards

1
Q

Genetics is all about…

A

gene inheritance that lead to a disorder or trait being passed on

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2
Q

Coccaro found

A

50% of aggression is genetic

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3
Q

Its more than one gene at work. One protein linked with aggression is the…

A

Monamine Oxidase A (MAOA)

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4
Q

MAOA regulates..

A

serotonin

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5
Q

low levels of serotonin leads to…

A

impulsive aggressive behaviour

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6
Q

Those that have a low MAOA have the…

A

warrior gene

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7
Q

Who studied a criminal violent family, and found all the males had low MAOA

A

Brunner

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8
Q

This gene has evolved because…

A

men needed to hunt, and that would’ve needed for them to be aggressive

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9
Q

Low MAOA doesn’t always cause violent criminal behaviour, but those who have it are…

A

more at risk

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10
Q

AO3 points for genetic factors

A

Hutchings and Mednick & Tiihonen

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11
Q

Hutchings and Mednick studied who?

A

14,000 Finnish adoptees

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12
Q

Hutchings and Mednick found that…

A

adopted boys with criminal convictions had biological fathers with criminal convictions

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13
Q

Hutchings and Mednick: What percentage of children, whose biological father committed a crime, also committed a crime?

A

21%

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14
Q

Hutchings and Mednick: What percentage of children, whose neither father committed a crime, committed a crime?

A

10%

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15
Q

Discussion for Hutchings and Mednick

A

Miles and Carey meta analysis

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16
Q

What did Miles and Carey find?

A

genetics could account for 50% of aggression. They also found that environment contributed more in youth , whereas genes played a bigger role later in life.

17
Q

Who did Tiihonen study?

A

Finnish prisoners

18
Q

What did Tiihonen find?

A

If Low MAOA is found with CDH13 gene, it results in the most violent inmates

19
Q

Discussion for Tiihonen

A

Its hard to determine the role of genetic factors. There are possible environmental influences. More than one gene might contribute. Its hard to definitively predict behaviour from genes.

20
Q

AO3+ point

A

Reductionist

21
Q

Reductionist study…

A

Caspi

22
Q

Caspi found that those with low MAOA are likely to grow up to exhibit anti-social behaviour, only if…

A

they have been mistreated.

Aggression (2 decks)

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