Blows To The Head Lead To Vision Loss

Blows To The Head Lead To Vision Loss.


As more on focuses on the check concussions can cause, scientists now report that even mild blows to the fountain-head might affect memory and thinking. In this latest study, special helmets were used on football and ice hockey players during their seasons of play. None of the players were diagnosed with a concussion during the burn the midnight oil period, but the unconventional helmets recorded key data whenever the players received milder blows to the head regrowitfast com. "The accelerometers in the helmets allowed us to figure out and quantify the intensity and frequency of impacts," said deliberate over author Dr Tom McAllister.



And "We thought it might outcome in some interesting insights". The researchers found that the extent of change in the brain's white matter was greater in those who performed worse than expected on tests of honour and learning. White matter transports messages between separate parts of the brain howporstarsgrowit.com. "This suggests that concussion is not the only thing we need to pay notice to," said McAllister, chairman of the department of psychiatry at the Indiana University School of Medicine.



So "These athletes didn't have a concussion diagnosis in the year we intentional them and there is a subsample of them who are perhaps more unguarded to impact. We need to learn more about how long these changes last and whether the changes are permanent". The reading was published online Dec 11, 2003 in the journal Neurology. Concussions are mellow traumatic brain injuries that occur from a sudden blow to the head or body.



Symptoms include headache, blurry eidolon and difficulty sleeping or thinking clearly. Research on repetitive brain impacts not associated with diagnosed concussions is spread out and contradictory, the researchers said. McAllister, who conducted the inspect while affiliated with Dartmouth College, compared 80 concussion-free varsity football and ice hockey players wearing specialized helmets to 79 athletes in noncontact sports.



He evaluated them before and after the period with imagination scans and learning and memory tests. A total of 20 percent of the contact-sport players and 11 percent of the noncontact athletes performed worse on a evaluate of verbal scholarship and memory at the end of the season, a decline expected in less than 7 percent of a normal population. Those performing worse exhibited more changes in the corpus callosum part of the brain - a bundle of nerves connecting the hand and right sides of the brain - than athletes who scored as predicted.



Dr Howard Derman, co-director of the Methodist Concussion Center in Houston, said he wasn't surprised by the findings. He said blows to the crisis without a reported concussion might cause knowledge damage that doesn't create symptoms.



Derman said future research on this topic would be illuminating if, with specially equipped helmets, blood begin and pressure changes in the brain could be measured during repetitive head blows. "If you can report that there are changes to the brain and there haven't been significant blows, it would be even more of a concern. We have to assume there is some cumulative effect, with multiple blows causing the problem. It's with bending a piece of plastic once - nothing happens vigrxbox.com. But if you do it 40 times, you fracture the plastic".

tag : brain blows concussion changes helmets players athletes mcallister memory

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