Primitive Conservatives and Decisive Liberals?

Our political allegiances could be hard-wired into our brains, neuroscientists believe.

Researchers have found evidence that the brains of conservatives are a different shape to those of Left-wingers.

Scans of 90 students’ brains at University College London uncovered a ‘strong correlation’ between the thickness of two particular areas of grey matter and an individual’s political views.

Self-proclaimed right-wingers had a more pronounced amygdala - a primitive part of the brain associated with emotion.

It is an almond-shape set of neurons located deep in the brain's medial temporal lobe.

However, those aligned to the left had thicker anterior cingulates - which is an area associated with anticipation and decision-making.

The research was carried out by Geraint Rees director of the UCL Institute of Cognitive Neuroscience who said he was 'very surprised' by the finding, which is being peer reviewed before publication next year.

It was commissioned as a light-hearted experiment by actor Colin Firth as part of his turn guest editing BBC Radio 4's Today programme but has now developed into a serious effort to discover whether we are programmed with a particular political view.

'The anterior cingulate is a part of the brain that is on the middle surface of the brain at the front and we found that the thickness of the grey matter, where the nerve cells of neurons are, was thicker the more people described themselves as liberal or left wing and thinner the more they described themselves as conservative or right wing,' he told the programme.

'The amygdala is a part of the brain which is very old and very ancient and thought to be very primitive and to do with the detection of emotions. The right amygdala was larger in those people who described themselves as conservative.

'It is very significant because it does suggest there is something about political attitudes that are either encoded in our brain structure through our experience or that our brain structure in some way determines or results in our political attitudes.'


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