Doctors Discovered How The Brain Dies

Doctors Discovered How The Brain Dies.


Shrunken structures internal the brains of important marijuana users might explain the stereotype of the "pothead," brain researchers report. Northwestern University scientists studying teens who were marijuana smokers or ex- smokers found that parts of the brains related to working memory appeared diminished in size - changes that coincided with the teens' shabby performance on memory tasks scriptovore.com. "We observed that the shapes of brain structures kin to short-term memory seemed to collapse inward or shrink in people who had a history of commonplace marijuana use when compared to healthy participants," said study author Matthew Smith.



He is an helpmate 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 herbal vito. 2013 delivery of the journal Schizophrenia Bulletin.



So "The brain abnormalities we're observing are immediately related to poor short-term memory performance. The more that intellectual looks abnormal, the poorer they're doing on memory tests". The paper is provocative because the participants had not been using marijuana for a twosome years, indicating that memory problems might persist even if the person 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 also scratch paper presents a chicken-or-egg problem.



It's not unsophisticated whether marijuana use caused the thought problems or people with memory problems tended to use marijuana. "The big $64000 doubt is whether these memory problems predate the marijuana use". The sanctum focused on nearly 100 participants sorted into four groups: healthy people who never used pot, thriving people who were former heavy pot smokers, people with schizophrenia who never used bay window and schizophrenics who were former heavy pot users. Researchers used MRI scans to inspect the structure of participants' brains.



Both healthy and schizophrenic marijuana users showed shrinkage of regions past comprehension in the brain that are associated with memory. "We found both of the marijuana-use groups had these parallel brain abnormalities". Tests of working reminiscence further found that marijuana users scored lower compared with non-users. Working homage is the ability to remember and process information in the moment and, if needed, transfer it to long-term memory.



Poor working remembrance can lead to poor academic performance and problems with everyday life. Healthy forebears who never used marijuana scored 37 times better, on average, than healthy users who had smoked in the life on memory tests, while "clean" schizophrenics scored nearly four times better than schizophrenic marijuana users. The examination confirms earlier findings that showed memory loss in progeny marijuana users, said Dr Scott Krakower, assistant unit chief of psychiatry at Zucker Hillside Hospital in Glen Oaks, NY But Krakower said more calling needs to be done before it's proven that marijuana absolutely causes changes in the brain.



So "Future inquiry needs to be done to verify the implications of marijuana use on the structure of the brain. It needs to be studied in a order of people over a period of time". Dr Mitch Earleywine, a professor of psychology and director of clinical training at the State University of New York at Albany, agreed that the results paucity to be replicated. "Brain structural studies often overlook at every single spot and then capitalize on the ones that are significant by chance," said Earleywine, architect 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 behave more poorly on honour tests due to the stress they endure taking such tests. "If you can imagine going into a lab to take a retention test because you've been selected for your cannabis use, then a bevy of white-coated folks who might think that cannabis use impairs tribute start giving you memory tests, you might not do so well.



We've found this for males in my lab". The Northwestern chew over also noted that these changes in brain structure are similar to those associated with having schizophrenia. "If someone has a extraction history of schizophrenia, they are increasing their risk of developing schizophrenia if they abuse marijuana". But Krakower said that confirmation might be a stretch. "I thought that was a little bit of a jump. We skilled in people with schizophrenia use marijuana. It's going to be very hard to say that someone has schizophrenia because they hand-me-down marijuana. That's going to be hard to prove" ultima. The Northwestern check out is supported by grants from the US National Institutes of Health.

tag : marijuana memory brain users people schizophrenia tests problems healthy

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