home   genetic news   bioinformatics   biotechnology   literature   journals   ethics   positions   events   sitemap
  HUM-MOLGEN -> Genetic News | search  

Instant Replay May Help Form Memories

  February, 14 2006 10:53
your information resource in human molecular genetics
Much like a rewinding video, cells in the brains of rats immediately replay new experiences in reverse, shows a study published online this week by Nature. This discovery might help to explain why we learn tasks better if there are breaks in between repetitions, why hyperactivity might cause learning problems and why simply being awake but resting can help learning.

Researchers already know that cells in the hippocampus of rats rerun patterns of neural activity when they are asleep. Now, David Foster and Matthew Wilson have examined what happens in these cells when the animals are awake, as rats run up and down a track, pausing at each end.

The researchers show that hippocampal cells fire in a particular sequence as the rat runs and that this sequence of firing is repeated backwards when they pause. This may help to etch a memory of the route into the brain, the authors say.

Author contact:
Dr David J Foster (Massachusetts Institute of Technology, MA, USA)
E-mail: djfoster@mit.edu

Abstract available online.

(C) Nature press release.

Message posted by: Trevor M. D'Souza

print this article mail this article
Latest News
Variants Associated with Pediatric Allergic Disorder

Mutations in PHF6 Found in T-Cell Leukemia

Genetic Risk Variant for Urinary Bladder Cancer

Antibody Has Therapeutic Effect on Mice with ALS

Regulating P53 Activity in Cancer Cells

Anti-RNA Therapy Counters Breast Cancer Spread

Mitochondrial DNA Diversity

The Power of RNA Sequencing

‘Pro-Ageing' Therapy for Cancer?

Niche Genetics Influence Leukaemia

Molecular Biology: Clinical Promise for RNA Interference

Chemoprevention Cocktail for Colon Cancer

more news ...

Generated by News Editor 2.0 by Kai Garlipp
WWW: Kai Garlipp, Frank S. Zollmann.
7.0 © 1995-2023 HUM-MOLGEN. All rights reserved. Liability, Copyright and Imprint.