How Exercise Affects Our Memory
nytimes.com
How Exercise Affects Our Memory
1–10 of 22 posts
Re: How Exercise Affects Our Memory
#2I wonder if those who primarily benefit from exercise based are primarily older people. If it's not, then either I need to see a neurologist, start exercising harder/more frequently, or both.
Re: How Exercise Affects Our Memory
#3Sample size: 26. Confounding variable: all older people. Also the exercisers did not perform significantly better in the memory test! They only had higher activation in the regions of the brain associated with memory! Really a garbage conclusion from the actual article
Re: How Exercise Affects Our Memory
#4Sample size: 26. Confounding variable: all older people. Also the exercisers did not perform significantly better in the memory test! They only had higher activation in the regions of the brain associated with memory! Really a garbage conclusion from the actual article
... Isn't increased brain activity a sign of worse performance? Because when your brain is actually operating efficiently, it doesn't need to light up very many neurons to do what it needs to do.
Re: How Exercise Affects Our Memory
#5Sample size: 26. Confounding variable: all older people. Also the exercisers did not perform significantly better in the memory test! They only had higher activation in the regions of the brain associated with memory! Really a garbage conclusion from the actual article
The memory test was designed not to measure performance (the names presented were preselected so that performance with each of them exceeded 90%).
For a real effect, a sample size of 26 is going to show it just fine.
Re: How Exercise Affects Our Memory
#6Sample size: 26. Confounding variable: all older people. Also the exercisers did not perform significantly better in the memory test! They only had higher activation in the regions of the brain associated with memory! Really a garbage conclusion from the actual article
... Isn't increased brain activity a sign of worse performance? Because when your brain is actually operating efficiently, it doesn't need to light up very many neurons to do what it needs to do.
On the other hand, forgetfulness and memory loss is associated with simply losing access to the neurons. If your memory bus was faulty, DRAM would be pretty quiet.
Re: How Exercise Affects Our Memory
#7I think there's decent evidence that low intensity exercise can increase BDNF which helps increase neural connections. Not really the same as this study, but a different effect of exercise on the brain
Re: How Exercise Affects Our Memory
#8Sample size: 26. Confounding variable: all older people. Also the exercisers did not perform significantly better in the memory test! They only had higher activation in the regions of the brain associated with memory! Really a garbage conclusion from the actual article
... Isn't increased brain activity a sign of worse performance? Because when your brain is actually operating efficiently, it doesn't need to light up very many neurons to do what it needs to do.
This is literally what is said in TFA:
> Less activity suggests that the brain had become more efficient at semantic-memory processing as a result of the exercise, requiring fewer resources to access the memories.
Re: How Exercise Affects Our Memory
#9I think there's decent evidence that low intensity exercise can increase BDNF which helps increase neural connections. Not really the same as this study, but a different effect of exercise on the brain
Methinks sleep increases memory performance more.
Re: How Exercise Affects Our Memory
#10Earlier quoted context omitted.
... Isn't increased brain activity a sign of worse performance? Because when your brain is actually operating efficiently, it doesn't need to light up very many neurons to do what it needs to do.
This is literally what is said in TFA: > Less activity suggests that the brain had become more efficient at semantic-memory processing as a result of the exercise, requiring fewer resources to access the memories.
It's clear in the paper that their result is the other way around, exercise was correlated with higher activation intensity.
https://www.cambridge.org/core/services/aop-cambridge-core/c...
The activation intensity isn't necessarily a measure of efficiency anyway. There wasn't a difference in blood flow, so energy use would have been similar.