MIT Researchers Explore How Rats Think 136
Ant writes "A Nature News article explains that, after running a maze, rats mentally replay their actions backwards." From the article: "As the rats ran along the track, the nerve cells fired in a very specific sequence. This is not surprising, because certain cells in this region are known to be triggered when an animal passes through a particular spot in a space. But the researchers were taken aback by what they saw when the rats were resting. Then, the same brain cells replayed the sequence of electrical firing over and over, but in reverse and speeded up. 'It's absolutely original; no one has ever seen this before at all,' says Edvard Moser, who studies memory at the Norwegian University of Science and Technology in Trondheim."
ok. just johnny hold on (Score:1, Interesting)
Can they induce the maze path into the mouse?
the learning possibilities (Score:4, Interesting)
Any teaching style that will appeal to a hyperactive child, will more than likely be engaging for a 'normal' student.
Though it might be a stretch to suggest this could be extended to understanding hyperactive kids. AFAIK, they usually have abnormally low levels of dopamine and/or seratonin in their brains, while the article posits that "The rerun [for mice] could coincide with a burst of the reward chemical dopamine, which is released in the brain when the animal finds food."
Maybe they can find some hyperactive mice to run the tests on?
Stress & studying for exams (Score:2, Interesting)
a) There are "key days", where I panic about not being able to learn stuff in time and those are the days when I remember/understand stuff far better than on self-confident days. On "panic days", I learn 3x-5x more effiently than on self-confident days.
b) I might study a whole day long and dont understand or at least not being able to explain the formulas/problems/algorithms/whatever in my own words. And then I panic. When I have gone to sleep and wake up the next morning, however, all is there, unfolds in my mind in its crystal clear glory.
Sometimes I remember the dreams of those nights being about formulas and exams.
=> combining this evidence with your post and the article, leads to two points:
- Stress prepares certain areas for reorganising newly acquired memories.
- These areas then replay and reorganise the newly acquired memories during the night. The dreams are about some of those informations/processes popping up into the (dream-)conscious realm and the consciousness processing elements try to make sense from the basic subconscious information that is currently learn/trained.
If you have dealt with Experience-Based Artificial Neural Networks (EBANN) - they also learn in that way. They have some formal background knowledge about a problem, acquired/given externally (with humans its e.g. prior knowledge about the domain or just basic logic) and then optimise a Neural Network for working on a generalised class of examples for that problem. The optimisation is lead/constraint by the background knowledge.
I suspect they will find the same true for people (Score:4, Interesting)
Whoa, I'm reading back my post and thinking WTF!
And nobody has asked... (Score:1, Interesting)
common trait (Score:2, Interesting)
Of course, it doesn't take a MIT researcher to figure that out, just funding and identification that's it should be important.
Data != information, data exploitation == information.
Re:back propagation learning algorithm (Score:2, Interesting)
The biological brain is not just a function.