Blows To The Head Lead To Vision Loss

Blows To The Head Lead To Vision Loss.
As more analysis focuses on the devastation concussions can cause, scientists now record that even mild blows to the manage might affect memory and thinking. In this latest study, faithful 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 workroom period, but the individual helmets recorded key data whenever the players received milder blows to the head neosize xl plus. "The accelerometers in the helmets allowed us to upon and quantify the fervour and frequency of impacts," said mull over author Dr Tom McAllister.

And "We cerebration it might result in some interesting insights". The researchers found that the bounds of change in the brain's white matter was greater in those who performed worse than expected on tests of remembrance and learning. White dilemma transports messages between different parts of the brain. "This suggests that concussion is not the only preoccupation we need to pay publicity 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 forced them and there is a subsample of them who are it may be more weak to impact. We need to learn more about how long these changes hindmost and whether the changes are permanent". The study was published online Dec 11, 2003 in the fortnightly Neurology. Concussions are bland traumatic brain injuries that occur from a sudden blow to the chairperson or body.

Symptoms include headache, blurry vision and difficulty sleeping or contemplative clearly. Research on repetitive brain impacts not associated with diagnosed concussions is insignificant and contradictory, the researchers said. McAllister, who conducted the check out 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 time with understanding scans and wisdom and homage tests. A total of 20 percent of the contact-sport players and 11 percent of the noncontact athletes performed worse on a proof of conversational learning and memory at the end of the season, a decline expected in less than 7 percent of a general population. Those performing worse exhibited more changes in the corpus callosum part of the perspicacity - a bundle of nerves connecting the left and right sides of the wisdom - 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 flair without a reported concussion might cause intellect price that doesn't disclose symptoms.

Derman said future research on this topic would be illuminating if, with exclusively equipped helmets, blood flow and pressure changes in the discernment could be measured during repetitive head blows. "If you can substantiate 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 up there is some cumulative effect, with multiple blows causing the problem. It's opposite number bending a piece of plastic once - nothing happens look at this. But if you do it 40 times, you sever the plastic".