So what exactly is your doctor doing to make sure sure dendrites are working properly and you don't have memory problems post-stroke? ANYTHING AT ALL?
http://neurosciencenews.com/neuroscience-dendrite-memory-formation-1477/
Study sheds light on why we might remember some things and not others.
Why do we remember some things and not others? In a unique imaging
study, two Northwestern University researchers have discovered how
neurons in the brain might allow some experiences to be remembered while
others are forgotten. It turns out, if you want to remember something
about your environment, you better involve your dendrites.
Using a high-resolution, one-of-a-kind microscope, Daniel A. Dombeck
and Mark E. J. Sheffield peered into the brain of a living animal and
saw exactly what was happening in individual neurons called place cells
as the animal navigated a virtual reality maze.
The scientists found that, contrary to current thought, the activity
of a neuron’s cell body and its dendrites can be different. They
observed that when cell bodies were activated but the dendrites were not
activated during an animal’s experience, a lasting memory of that
experience was not formed by the neurons. This suggests that the cell
body seems to represent ongoing experience, while dendrites, the
treelike branches of a neuron, help to store that experience as a
memory.
“There are a lot of theories on memory but very little data as to how
individual neurons actually store information in a behaving animal,”
said Dombeck, assistant professor of neurobiology in the Weinberg
College of Arts and Sciences and the study’s senior author. “Now we have
uncovered signals in dendrites that we think are very important for
learning and memory. Our findings could explain why some experiences are
remembered and others are forgotten.”
More at link.
No comments:
Post a Comment