Doctors Discovered How The Brain Dies

Doctors Discovered How The Brain Dies.

Shrunken structures in jail the brains of unbearable marijuana users might explain the stereotype of the "pothead," brain researchers report. Northwestern University scientists studying teens who were marijuana smokers or historic smokers found that parts of the wit related to working memory appeared diminished in size - changes that coincided with the teens' impecunious performance on memory tasks adesam tablet is for?. "We observed that the shapes of brain structures interrelated to short-term memory seemed to collapse inward or shrink in people who had a history of common marijuana use when compared to healthy participants," said study author Matthew Smith.

He is an aide-de-camp research professor in psychiatry and behavioral sciences at the Northwestern University Feinberg School of Medicine, in Chicago. The shrinking of these structures appeared to be more advanced in kinfolk who had started using marijuana at a younger age. This suggests that youngsters might be more suggestible to drug-related memory loss, according to the study, which was published in the Dec 16 2013 conclusion of the journal Schizophrenia Bulletin.

So "The brain abnormalities we're observing are unswervingly related to poor short-term memory performance," Smith said. "The more that wisdom looks abnormal, the poorer they're doing on memory tests". The gift-wrapping is provocative because the participants had not been using marijuana for a couple years, indicating that memory problems might persist even if the mortal quits smoking the drug, said Dr Frances Levin, chairman of the American Psychiatric Association's Council on Addiction Psychiatry. At the same time, Levin cautioned that the sheet presents a chicken-or-egg problem.

It's not determined whether marijuana use caused the memory problems or people with memory problems tended to use marijuana. "The big $64000 the third degree is whether these memory problems predate the marijuana use," Levin said. The cramming focused on nearly 100 participants sorted into four groups: in the pink people who never used pot, healthy people who were former heavy pot smokers, clan with schizophrenia who never used pot and schizophrenics who were former heavy pot users. Researchers reach-me-down MRI scans to study the structure of participants' brains.

Both healthy and schizophrenic marijuana users showed shrinkage of regions chasmal in the brain that are associated with memory. "We found both of the marijuana-use groups had these compare with brain abnormalities," Smith said. Tests of working memory further found that marijuana users scored belittle compared with non-users. Working memory is the ability to remember and process data in the moment and, if needed, transfer it to long-term memory.

Poor working memory can lead to slipshod academic performance and problems with everyday life. Healthy people who never used marijuana scored 37 times better, on average, than salubrious users who had smoked in the past on memory tests, while "clean" schizophrenics scored nearly four times better than schizophrenic marijuana users. The boning up confirms earlier findings that showed tribute loss in young marijuana users, said Dr Scott Krakower, subsidiary unit chief of psychiatry at Zucker Hillside Hospital in Glen Oaks, NY But Krakower said more hold needs to be done before it's proven that marijuana indeed causes changes in the brain.

So "Future research needs to be done to verify the implications of marijuana use on the character of the brain. It needs to be studied in a group of people over a period of time". Dr Mitch Earleywine, a professor of psyche and director of clinical training at the State University of New York at Albany, agreed that the results distress to be replicated. "Brain structural studies often gaze at every single spot and then capitalize on the ones that are significant by chance," said Earleywine, author of the book Understanding Marijuana.

And "We've had no structural deficits in folks who started using as adults, so researchers went to adolescents". Earleywine said marijuana users have been shown to shut up more below par on memory tests due to the stress they endure taking such tests. "If you can deem going into a lab to take a memory test because you've been selected for your cannabis use, then a bevy of white-coated folks who might regard that cannabis use impairs memory start giving you homage tests, you might not do so well.

We've found this for males in my lab". The Northwestern study also noted that these changes in thought structure are similar to those associated with having schizophrenia. "If someone has a family history of schizophrenia, they are increasing their peril of developing schizophrenia if they abuse marijuana," Smith said. But Krakower said that avowal might be a stretch. "I thought that was a little bit of a jump. We comprehend people with schizophrenia use marijuana. It's going to be very hard to say that someone has schizophrenia because they occupied marijuana. That's going to be hard to prove" medicine. The Northwestern research is supported by grants from the US National Institutes of Health.

tag : marijuana memory brain users people schizophrenia tests problems smith

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