Scan shows how brains plot future

Brain scans have given US scientists a clue about how we create a mental image of our own future.
The Washington University team say that specific areas of the brain are active when thinking about upcoming events.
The Proceedings of the National Academy of Sciences study could help doctors trying to understand damage inflicted by strokes, injuries or diseases.
The findings tally with damage spotted in the brains of patients who have lost the ability to 'think ahead'.

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