Brain Cells Misfire as a Result of Marijuana Use

It is well-known that prolonged marijuana use impacts short-term memory. Now, a study from Rutgers University researchers has found that the cause of this memory loss may be the misfiring brain cells.

In the study, rats that were given THC (the active ingredient in marijuana) and a synthetic cannabinoid experienced disruptions in the synchronous brain-cell firing that causes memories to be formed. The drugs also slowed brain-wave activity, notably theta and fast-ripple waves but also gamma waves. Theta and gamma waves are believed to be involved in short-term memory formation, while fast-ripple waves are thought to play a role in moving such memories into long-term storage.

At high doses, marijuana appeared to prevent learning altogether.

 

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