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News tagged with rat brains

Smart rat 'Hobbie-J' produced by over-expressing a gene that helps brain cells communicate

Over-expressing a gene that lets brain cells communicate just a fraction of a second longer makes a smarter rat, report researchers from the Medical College of Georgia and East China Normal University.

Biology / Biotechnology

created Oct 19, 2009 | popularity 4.9 / 5 (15) | comments 5

Why newborn babies can't walk

(PhysOrg.com) -- The first steps of an infant is a real milestone in the development of all mammals including humans, but little is known about why some animals can walk soon after birth, while others need ...

Medicine & Health / Neuroscience

created Dec 18, 2009 | popularity 4.2 / 5 (13) | comments 16 weblog

Brain chemical reduces anxiety, increases survival of new cells

New research on a brain chemical involved in development sheds light on why some individuals may be predisposed to anxiety. It also strengthens understanding of cellular processes that may be common to anxiety and depression, ...

Medicine & Health / Neuroscience

created May 12, 2009 | popularity 4.5 / 5 (11) | comments 0

Stress rewires the brain to make rats creatures of habit

Chronic stress rewires the brains of rats to make them creatures of habit who make rote decisions instead of changing their behavior to gain rewards, a study published Thursday has found.

Medicine & Health / Medical research

created Jul 30, 2009 | popularity 4.9 / 5 (10) | comments 2

Mobile microscopes illuminate the brain

(PhysOrg.com) -- By building a tiny microscope small enough to be carried around on a rats' head, scientists at the Max Planck Institute for Biological Cybernetics in Tübingen, Germany, have found a way to ...

Biology / Other

created Nov 03, 2009 | popularity 5 / 5 (6) | comments 0

Nerve-cell transplants help brain-damaged rats fully recover lost ability to learn

Nerve cells transplanted into brain-damaged rats helped them to fully recover their ability to learn and remember, probably by promoting nurturing, protective growth factors, according to a new study.

Medicine & Health / Neuroscience

created Dec 09, 2009 | popularity 5 / 5 (5) | comments 1

Discovery gives insight into brain 'replay' process

The hippocampus, a part of the brain essential for memory, has long been known to "replay" recently experienced events. Previously, replay was believed to be a simple process of reviewing recent experiences in order to help ...

Medicine & Health / Neuroscience

created Mar 11, 2010 | popularity 4.8 / 5 (5) | comments 0 | with audio podcast

Scientists reveal how neuronal activity is timed in brain's memory-making circuits

Theta oscillations are a type of prominent brain rhythm that orchestrates neuronal activity in the hippocampus, a brain area critical for the formation of new memories. For several decades these oscillations were believed ...

Medicine & Health / Medical research

created May 29, 2009 | popularity 5 / 5 (4) | comments 0

New stroke therapy successful in rats

People with impaired mobility after a stroke soon may have a therapy that restores limb function long after the injury, if a supplemental protein works as well in humans as it does in paralyzed rats.

Medicine & Health / Neuroscience

created Jan 12, 2010 | popularity 5 / 5 (4) | comments 2 | with audio podcast

Researchers find two brain circuits involved with habitual learning

Driving to and from work is a habit for most commuters - we do it without really thinking. But before our commutes became routine, we had to learn our way through trial-and-error exploration. A new study ...

Medicine & Health / Neuroscience

created Jun 09, 2010 | popularity 5 / 5 (4) | comments 1 | with audio podcast

Higher anxiety, depression among women may have basis in cell signals

There may be a biological reason why depression and other stress-related psychiatric disorders are more common among women compared to men. Studying stress signaling systems in animal brains, neuroscience researchers found ...

Medicine & Health / Psychology & Psychiatry

created Jun 15, 2010 | popularity 4.3 / 5 (4) | comments 1 | with audio podcast

Enriched environment improves wound healing in rats

Improving the environment in which rats are reared can significantly strengthen the physiological process of wound healing, according to a report in the online, open-access, peer-reviewed journal PLoS ONE.

Medicine & Health / Psychology & Psychiatry

created May 13, 2009 | popularity 3.7 / 5 (3) | comments 1

Rats to robots - brain's grid cells tell us how we navigate

(PhysOrg.com) -- Rats and robots can tell us how the brain maps out familiar environments and navigates in them, Queensland University of Technology robotics researchers have found.

Technology / Engineering

created Nov 12, 2010 | popularity 3.7 / 5 (3) | comments 0 | with audio podcast

Rats move toward the food but do not eat

Scientists led a rat to the fatty food, but they couldn't make it eat. Using an animal model of binge eating, University of Missouri researchers discovered that deactivating the basolateral amygdala, a brain ...

Medicine & Health / Neuroscience

created Sep 08, 2009 | popularity 4.5 / 5 (2) | comments 2

Adolescent alcohol expsoure may lead to long-term risky decision making

(PhysOrg.com) -- Picture this. A bunch of adolescent rats walk into a bar and start consuming Jell-O shots. Lots of them.

Medicine & Health / Neuroscience

created Sep 21, 2009 | popularity 4.5 / 5 (2) | comments 3