{"id":121385,"date":"2019-06-04T20:00:14","date_gmt":"2019-06-04T20:00:14","guid":{"rendered":"https:\/\/www.bnreport.com\/a-new-experiment-didnt-find-signs-of-dreaming-in-brain-waves\/"},"modified":"2019-06-04T20:00:14","modified_gmt":"2019-06-04T20:00:14","slug":"a-new-experiment-didnt-find-signs-of-dreaming-in-brain-waves","status":"publish","type":"post","link":"https:\/\/www.bnreport.com\/en\/a-new-experiment-didnt-find-signs-of-dreaming-in-brain-waves\/","title":{"rendered":"A new experiment didnt find signs of dreaming in brain waves"},"content":{"rendered":"

In a nighttime experiment called the Dream Catcher, peoples dreams slipped right through the net. Looking at only the brain wave activity of sleeping people, scientists werent able to reliably spot a dreaming brain<\/a>.<\/p>\n

The details of that leaky net, described May 27 at bioRxiv.org, havent yet been reviewed by other scientists. And the results are bound to be heavily scrutinized, as they run counter to earlier work that described signs of dreams in neural data. The experimental design matters, because scientists suspect that dreams hold clues about the deepest mystery of the mind \u2014 consciousness itself.<\/p>\n

The brain can create rich tapestries of awareness even in the complete absence of incoming information. Studying these instances of brain-created consciousness, which include dreaming, mind-wandering and daydreaming, \u201cis a powerful way to understand the relationship between the brain and the mind,\u201d says study coauthor Naotsugu Tsuchiya of Monash University in Clayton, a town near Melbourne, Australia.<\/p>\n

Tsuchiya and his colleagues analyzed data generated from nine people who slept overnight in a laboratory while wearing an electrode cap that measured brain waves. The researchers focused on a stage of sleep called non-REM sleep. (Dreams are so abundant during REM sleep that researchers would have been hard-pressed to find enough instances of nondream sleep to use as a comparison.) To identify dreams, researchers employed an irritating method: They would wake up a person once he or she had entered non-REM sleep, and ask whether the person had been dreaming.<\/p>\n

To keep the experiment free from unintentional biases, the project relied on two teams of researchers: data collectors and data analyzers. Once the collectors had gathered brain wave data on both dreams and nondreams, the data was handed over to Tsuchiya and other data analyzers without any clues about the subjects, including whether they were dreaming.<\/p>\n

Early on, the analyzers complex algorithms separated the data into neat groups. \u201cWe were very confident that we were successful,\u201d Tsuchiya says. But once data collectors reviewed the findings, it was clear the experiment had failed to sort the data into dreaming and nondreaming stacks. Even after the data collectors doled out hints such as which data came from which subject, the analyzers still couldnt reliably spot signs of dreaming, which might have included a type of brain wave emanating from a certain brain locale, for instance.<\/p>\n

That failure doesnt fit with earlier studies that have turned up Read More \u2013 Source<\/strong><\/a>
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science news<\/a><\/h5>\n

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