Three of the five were already experiencing mild cognitive impairment as judged by standard memory tests.
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Memory tests enable doctors to determine how advanced the disease is and whether patients will benefit from the drug.
On memory tests, 27% of the football players showed impairment, compared with seven per cent of the swimmers and runners.
Secondly, they showed that the amount of deep sleep could be used to predict how well people would do on memory tests.
The researchers also found a direct link between the number of tangles and scores from memory tests carried out on the eight people before they died.
They also showed that injecting normal mice with extra ghrelin increased the number of synapses in the hippocampus - and improved the animals' performance in several learning and memory tests.
The Memory Characteristics Questionnaire tests for sensory and emotional details of recollections and how people relive them in space and time.
Dr Cho not only scanned their brains to look at their physical characteristics, but also measured their performance in memory and understanding tests.
Researchers tested participants for their cognitive abilities by administering standardized tests of memory, information processing, and thought organization.
The court heard that Mr George had an IQ of 75, in the lowest 5% of the population, and scored in the bottom 1% for tests of memory, planning and carrying out tasks.
His company has recently done tests of in memory analysis compared to Hadoop and shown that in-memory is faster and easier to develop on.
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After ten weeks of Tai Chi classes, the study group showed significant improvements in tests of their memory, language, attention, stress, mood and fatigue.
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They also assessed their physical and neurological health, and carried out tests - including memory, language and abstract reasoning - to evaluate their condition.
The mice were then put through tests that measured their memory and cognitive ability.
In addition to a general physical exam, your doctor will likely conduct relatively brief question-and-answer tests to judge your memory and other thinking skills.
"In the study, the volunteers given modafinil performed significantly better at neuropsychological tests involving short-term memory and showed less impulsive responding and an increased tendency to reflect on the tasks they were given, " she said.
He or she can conduct tests to judge the degree of memory impairment and diagnose the cause.
These include asking patients and caregivers about whether confusion and memory loss are worsening and using widely available cognitive screening tests that take less than five minutes.
Tests using spatial relationships, speed of processing, and working memory aim to measure it.
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Tests now under way at Motorola and elsewhere suggest that a one-size-fits-all memory chip is emerging: MRAM (magnetic random access memory).
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