Brain scans pinpoint how two vodka lemonades can make you aggressive

Mail Online | 2/12/2018 | Stephen Matthews For Mailonline
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It's long been known to fuel violence on nights out.

And now researchers have pinpointed exactly why and how people get aggressive after drinking alcohol.

Brain - Scans - Volunteers - Vodka - Lemonades

Brain scans from volunteers who had two vodka lemonades showed booze affects the prefrontal cortex - the area of the brain that controls aggression.

In comparison, a placebo that looked like the mixers triggered no such changes, making adults no more likely to misbehave.

Half - Crimes - Evidence - Exists - Booze

Nearly half of all violent crimes are linked to alcohol, but little evidence exists about how and why booze can trigger such behaviour in the brain.

Chemical changes in the brain caused by booze have been pinpointed as a cause for violence for decades, and the new study confirms the widely-held theory.

Mixers - Team - Dampening - Effect - Working

It took only two vodka-based mixers for the Australian team to note a dampening effect in the working of the prefrontal cortex.

University of New South Wales researchers conducted the MRI scans on 50 healthy, young men who were later provoked.


How was the study carried out?

Participants were either given two drinks containing 2.42ml of 37.5 per cent vodka for every kg of body weight, or alcohol-free placebos before being whisked away.

Instance - Man - Vodka - Drinks - Lemonade

For instance, a man weighing 11st (70kg) would have been given 340ml of vodka in his two drinks, washed down with lemonade and tonic water.

Inside the MRI scanner, they were then informed that they would be competing in a competitive time task designed to rile them up.

Technique - Years - Research - Settings - Way

This technique has been widely-used for around 50 years in research settings as a way of measuring response to provocation.

Brain scans allowed researchers, led by Dr Thomas Denson,...
(Excerpt) Read more at: Mail Online
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