Cannabis users exhibit increased cortical activation at rest (or asleep) compared to non-users
Cannabis users have a "noisy brain" (increased cortical activation), new research shows. A noisy brain is when you can't suppress the flow of thoughts. What prevents the brain from resting during sleep ... Does cannabis disrupt the cognitive processes of our mind?
Increased cortical activation during resting state
This is the question researchers at the Center for BrainHealth at the University of Texas at Dallas are asking themselves. Thesurvey shows that cannabis users experience increased cortical activation during the resting state of the brain compared to non-users. This results in a "noisy brain", or the disruption of cognitive processes, according to the researchers.
Dr Shikha Prashad, lead author of the study and research scientist at the Center for BrainHealth, says the study is the first to characterize the overall cortical activation and inter and intra hemispheric functional connectivity during the resting state of consumers. of cannabis. The researchers collected electroencephalogram (EEG) data from 38 participants divided into two groups: 17 cannabis users and 21 non-users.
The results showed that cannabis users showed increased activation of most different types of brain waves, compared to non-consumers. Similar results have been obtained in other studies of heroin addicts, alcoholics and cocaine addicts.
Changes in communication between cortical areas of the brain may also be related to cognitive disorders related to cannabis use. According to Mr. Prashad, this could mean that participants had difficulty inhibit neuronal activity. Which would force them to put in more effort when trying to stop the flow of thoughts during the rest phase ...
Cannabis and sleep
The question of whether or not cannabis promotes sleep requires more research. But, current studies on cannabis and sleep are often contradictory ...
A 2016 study found that daily cannabis use negatively impacted the quality of sleep. Notably, in young adults who had not reported trouble sleeping… Meanwhile, another study using rodents found that CBD could induce a deeper state of sleep.
But an earlier study in humans showed that CBD produced a more pronounced state of alert; while THC acted as a sedative. Much of the current research that supports cannabis as a sleep aid is anecdotal. Including strains with high levels of CBN that may help with smoother sleep. In addition, medical cannabis can be used for all three types ofSleep Apnea - that caused by obstruction, that caused by brain function and that caused by both.
In short, the results of this new study could contribute to the understanding of cognitive disorders. However, BrainHealth ultimately concludes that more studies are needed ...