A new study suggests that hamsters may suffer from symptoms of anxiety and depression during the dark days of winter, just as some humans do.
Using a variety of tests, researchers found more symptoms of depression and anxiety in adult hamsters that were housed for weeks in conditions with limited daylight, as they would find in winter, when compared to hamsters who had days with longer daylight.
The research also examined whether hamsters that developed prenatally and then were born during short days were more likely to suffer from depression and anxiety as adults. The results for these tests were mixed, but suggest that hamsters born in winter-like light conditions had increased depressive symptoms as adults.
Randy Nelson | EurekAlert!
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