![]() ![]() The patterns lasted for minutes at a time and "played" at the same rate as they did when the rats were awake. In 44 percent of REM sleep episodes, the researchers found brain patterns that matched those that the rats had produced during their waking maze runs. ![]() ![]() Next, they recorded the same neurons during REM sleep. First, the researchers recorded the activity of multiple neurons in the rats' brains while they did repetitive maze tasks. In 2001, Wilson and his colleagues were the first to find that rats dream - or, at least, their brains do the same thing people's brains do during dreaming, and to similar effect. ![]()
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