Turning to crime: Biology: Genes & Serotonin: Brunner et al

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Year of study?
1993
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Method used?
Case study
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Aim?
Study a family in the Netherlands where males were affected by a syndrome of borderline retardation and abnormal violent bvr
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How many males were studied?
5
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How was the analysis carried out?
Through the most ethical method of urine samples over a 24 hour period
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/What does the MAO-A gene control?
The levels of serotonin reaching the brain- metabolism of excess
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What can too much serotonin do?
Can cause impulsive acts of aggression
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What did they find in these 5 males?
Impaired metabolism of Serotonin which was likely to be responsible for mental retardation which can be linked to aggressive bvr
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What was this syndrome named?
'Brunner Syndrome'
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How many cases of this syndrome have there been?
This family is the only case that has been discovered
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