Extras

Other eye-catching studies that didn't make the final cut this fortnight:

Alcohol causes you to lose your sense of humour.

People with amnesia have trouble imagining the future.

Stroke sufferers who suffer damage to a part of the brain called the insula often lose the urge to smoke, offering clues to addiction.

A brain area has been found that is more easily activated in altruistic people.

If you've come across a fascinating piece of psychology research, please let me know.

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