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The brain is wired to work differently in the seasons. It behaves in a new way in the summer, and in a different way in the winter.

Gilles Vandewalle, the author of the study conducted at the University of Liege in Belgium, studied 28 subjects tested in different parts of the year for 4.5 days each time.

Though the subject's skills to undertake tasks did not get affected by the season, the neural cost seemed high. For example, summer time seemed to be important if a person is trying to focus attention, but the winter appears more favorable for memorization.

Vandewalle and her team arrived at these results when they used MRI scans of their brains even as they finished their tasks.

It was an interesting breakthrough, especially for those who seemed to get affected by the seasonal affective disorder.

The study has been published online in the Proceedings of the National Academy of Sciences of the United States.