One biological explanation for criminal behaviour

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Created by: Jessica.Piechniczek
Created on: 30-12-16 14:55

What predisposes individuals to criminal behaviour?

One or more genes predispose individuals to criminal behaviour.

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Is there evidence for this?

There is evidence for a genetic component which come from twin studies where MZ and DZ twins are compared.

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What researcher provided this evidence?

Raine reveiwed research on delinquent behaviour of twins and found that there was a 52% concordance rte for M twins and 21% concordance rate for DZ twins.

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What are the genes linked to criminal behaviour?

There are two genes that have been linked to criminal behaviour and these are the MAOA gene and the CDH13 gene.

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What did Brunner et al find?

Brunner et al analysed the DNA of 28 males from a Dutch family with a history of impulsive and aggressive behaviour e.g **** and attempted murder. Brunner found that the men had a gene which lowered the activity of MAOA suggesting the gene is linked

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What did a recent Finnish study find?

A recent Finnish study conducted by Tihonen et al found that 900 crimes committed there, there was evidence that 5-10% of all violent crimes were linked to the two genes in terms of low activity from both the MAOA gene and the CDH13 gene.

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Other cards in this set

Card 2

Front

Is there evidence for this?

Back

There is evidence for a genetic component which come from twin studies where MZ and DZ twins are compared.

Card 3

Front

What researcher provided this evidence?

Back

Card 4

Front

What are the genes linked to criminal behaviour?

Back

Card 5

Front

What did Brunner et al find?

Back

View more cards

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One biological explanation for criminal behaviour