A man in Brazil developed what doctors have called pathological generosity after a stroke damaged parts of his brain, causing his behaviour to change.
The 49-year-old began to give away money, food and drinks excessively after a stroke disrupted part of his brain related to higher thinking and decision-making.
Researchers at the Federal University of Rio de Janeiro concluded Mr A was left with “excessive and persistent generosity” by the stroke, which was brought on by bleeding in his brain, a side-effect of his high blood pressure.
Doctors determined the stroke occurred in a subcortical region and could have affected areas associated with regulating behaviour.
But experts say knowing where the stroke occurred does not predict changes in behaviour or personality, as the complexity of networks means an area not necessarily next to the injury can be affected.
Dr Larry Goldstein, a neurologist and director of the Stroke Centre at Duke University, said: “Although the observation of personality change is not that unusual, this particular one is apparently novel.
“Stroke can cause a variety of neuropsychological and behavioural changes,” he said, adding that brain damage caused by low oxygen supply could lead to emotional changes, with depression the most common. – Daily Mail