Take note, students: Mice that ‘cram’ for exams remember less

Share via AddThis
Posted December 27, 2013
Mice
It’s been more than 100 years since German psychologist Hermann Ebbinghaus determined that learning interspersed with rest created longer-lasting memories than cramming, or learning without rest.

Yet it’s only much more recently that scientists have begun to understand the underlying molecular mechanisms for this phenomenon. In a study published Monday in the journal PNAS, researchers examined the physical changes in the brain cells of mice while “training” their eyes to keep track of a moving image.

Researchers examined the horizontal optokinetic response, or HOKR, in mice to determine what rest interval was best suited to increasing their memory.

HOKR is what makes it possible for a rider in a train to visually track the moving scenery. While the process is unconscious, it involves frequent, minute eye movements.

Mice were fastened to a device that immobilized their heads and then were made to look at a revolving, checkered image that triggered the eye response. A high speed camera was used to determine when the tracking began and when it stopped.

Read more at: MedicalXpress



53,399 science & technology articles

Categories

Our Articles (see all)

General News

Follow us

Facebook   Twitter   Pinterest   StumbleUpon   Plurk
Google+   Tumblr   Delicious   RSS   Newsletter via Email

Featured Video (see all)

The Danish researchteam, CODER, has found out, that the human brain can beat the calculating powers of a computer, when it comes to solving quantum-problems. Image credit: Colourbox
Scientists map brain’s thesaurus to help decode inner thoughts
What if a map of the brain could help us decode people’s inner thoughts? UC Berkeley scientists have taken…

Featured Image (see all)


On the Road to Finding Other Earths
Scientists are getting closer to finding worlds that resemble our own “blue marble” of a planet. NASA’s Kepler…