Marijuana Legalization: Cannabis Affects Ability To Process Emotion, New Study Says

Marijuana can alter the way one processes their emotions, according to a new study. Colorado State University researchers found that pot can affect users’ ability to recognize, process and “empathize with human emotions.”

The study, published Monday in the journal PLOS ONE, looked at the brain activities of 70 participants over the course of two years. Researchers classified participants based on whether they considered themselves chronic, moderate or nonusers of marijuana. 

“We tried to see if our simple emotion-processing paradigm could be applied to people who use cannabis, because we wanted to see if there was a difference,” said Lucy Troup, lead researcher and assistant professor of psychology at Colorado State University in Fort Collins. “That’s how it all started.”

Troup and her team analyzed participants’ brains using an electroencephalogram (EEG), which shows the electrical activity of the brain. While each participant was hooked up to an EEG, they were shown photos depicting...

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