Head Trauma and Learning
November 23, 2012
Researchers at my alma mater have joined their voices to the growing chorus of concerns about the effects of repeated blows to the head.
A study of the cognitive effects of head impacts on members of Dartmouth College football, hockey, track, crew and Nordic ski teams compared before and after season results on learning and memory skills. Participating athletes also came from Brown and Virginia Tech.
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22 percent of athletes in contact sports had lower results on learning and memory skills tests after their season.
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Only 4 percent of athletes in non-contact sports posted lower test results.
The researchers caution that it is unknown at this point how long these negative effects may last, but they also note there is some correlation between test results and how hard the athletes were hitting heads.
This adds to the mounting evidence that rules writers, program sponsors, coaches and officials must look for and implement a variety of measures to reduce the frequency and severity of head impacts in both practice and competition in all sports.
Misdirection
July 22, 2013
During the summer weeks, "From the Director" will bring to you some of our favorite entries from previous years. Today's blog first appeared May 22, 2012.
I often arrange my days so I can see their sunrises and sunsets; so I have seen more of them, and paused longer over them, than most people I know. But in spite of the large number I’ve seen, I still have some favorites.
Without question, my most memorable sunrise was observed this past January as I stepped out on the balcony of a hotel room in Panama City, cup of coffee in hand, and watched a huge, red-golden sun rise out of the Pacific Ocean. That’s right, the Pacific!
I was in one of those relatively rare locations in the world where the Pacific Ocean is located east of the Atlantic Ocean.
Nearby, great ocean-going ships were traveling east through the Panama Canal in order to reach their western destinations more efficiently.
And beneath the ocean surface, the trim tabs of the huge ships’ rudders were being turned to the left to help the ships steer right, and to the right to help the ships steer left.
Sometimes it is quicker or more economical or just more acceptable to go in one direction for awhile in order to reach an ultimate goal that’s in the opposite direction.