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Vicious cycle: Obesity sustained by changes in brain biochemistry

With obesity reaching epidemic levels in some parts of the world, scientists have only begun to understand why it is such a persistent condition. A study in the Journal of Biological Chemistry adds substantially to the st ...

Medical research created May 16, 2013 | popularity 3 / 5 (2) | comments 2 | with audio podcast

Researchers find far-reaching, microvascular damage in uninjured side of brain after stroke

While the effects of acute stroke have been widely studied, brain damage during the subacute phase of stroke has been a neglected area of research. Now, a new study by the University of South Florida reports that within a ...

Neuroscience created May 20, 2013 | popularity 5 / 5 (1) | comments 0 | with audio podcast

Evidence that brains re-wire themselves following damage or injury

(Medical Xpress)—Scientists from the United States and Australia have advanced our understanding of brain plasticity by showing that the brain forms complex new circuits after damage, often far from the ...

Neuroscience created May 15, 2013 | popularity 4.3 / 5 (8) | comments 0 | with audio podcast

Rats take high-speed multisensory snapshots

When animals are on the hunt for food they likely use many senses, and scientists have wondered how the different senses work together. New research from the laboratory of CSHL neuroscientist and Assistant Professor Adam ...

Neuroscience created May 07, 2013 | popularity 5 / 5 (1) | comments 0 | with audio podcast

Rats' and bats' brains work differently on the move

A new study of brain rhythms in bats and rats challenges a widely used model - based on studies in rodents - of how animals navigate their environment. To get a clearer picture of the processes at work in ...

Neuroscience created Apr 18, 2013 | popularity 5 / 5 (1) | comments 2 | with audio podcast

Study indicates reverse impulses clear useless information, prime brain for learning

(Medical Xpress)—When the mind is at rest, the electrical signals by which brain cells communicate appear to travel in reverse, wiping out unimportant information in the process, but sensitizing the cells ...

Neuroscience created Mar 19, 2013 | popularity 4.9 / 5 (9) | comments 2 | with audio podcast

Going places: Rat brain 'GPS' maps routes to rewards

While studying rats' ability to navigate familiar territory, Johns Hopkins scientists found that one particular brain structure uses remembered spatial information to imagine routes the rats then follow. ...

Neuroscience created Apr 17, 2013 | popularity not rated yet | comments 0 | with audio podcast

Learning a new sense: Scientists observe as humans learn to sense like a rat, with 'whiskers'

A Weizmann Institute experiment in which volunteers learned to sense objects' locations using just "rat whiskers" may help improve aids for the blind.

Neuroscience created Nov 05, 2012 | popularity 4.5 / 5 (4) | comments 5 | with audio podcast

The motivation to move: Study finds rats calculate 'average' of reward across several tests

Suppose you had $1,000 to invest in the stock market. How would you decide to pick one stock over another? Scientists have made great progress in understanding the neuroscience behind how people choose between ...

Neuroscience created Apr 19, 2013 | popularity not rated yet | comments 0 | with audio podcast

Researchers devise a way to manipulate a rat's dreams

(Medical Xpress)—Cognitive scientists working at MIT have devised a means for not only altering the dreams of rats, but of demonstrating a way of testing what they've achieved, offering evidence that it can ...

Neuroscience created Sep 06, 2012 | popularity 5 / 5 (3) | comments 0 | with audio podcast report

Use of Mephedrone—a popular party drug—can lead to permanent brain damage, research shows

(Medical Xpress)—The party drug mephedrone can cause lasting damage to the brain, according to new research led by the University of Sydney.

Psychology & Psychiatry created Sep 19, 2012 | popularity 5 / 5 (2) | comments 2 | with audio podcast

The biology behind binge eating

Female rats are much more likely to binge eat than male rats, according to new research that provides some of the strongest evidence yet that biology plays a role in eating disorders.

Diseases, Conditions, Syndromes created May 01, 2013 | popularity 5 / 5 (1) | comments 0

Dark matter DNA active in brain during day-night cycle

(Medical Xpress)—Long stretches of DNA once considered inert dark matter appear to be uniquely active in a part of the brain known to control the body's 24-hour cycle, according to researchers at the National Institutes ...

Medical research created Sep 24, 2012 | popularity 3 / 5 (2) | comments 2 | with audio podcast

No genetic clock for neuron longevity

(Medical Xpress)—People are living longer than ever before, thanks to medical and technological advances. Unfortunately, aging can be associated with a decrease in brain function. This is because, unlike ...

Neuroscience created Feb 27, 2013 | popularity 5 / 5 (5) | comments 0 | with audio podcast report

Herbal drug reduces the effects of alcohol

(Medical Xpress) -- Alcohol consumption can lead to those dreaded hangovers and even alcohol dependence. However, a new study published in the Journal of Neuroscience has found a natural ingredient in the ...

Neuroscience created Jan 05, 2012 | popularity 4.9 / 5 (11) | comments 9 | with audio podcast report

Rat

50 species

Stenomys Thomas, 1910

Rats are various medium-sized, long-tailed rodents of the superfamily Muroidea. "True rats" are members of the genus Rattus, the most important of which to humans are the black rat, Rattus rattus, and the brown rat, Rattus norvegicus. Many members of other rodent genera and families are also called rats and share many characteristics with true rats.

Rats are typically distinguished from mice by their size; rats are generally large muroid rodents, while mice are generally small muroid rodents. The muroid family is very large and complex, and the common terms rat and mouse are not taxonomically specific. Generally, when someone discovers a large muroid, its common name includes the term rat, while if it is small, the name includes the term mouse - scientifically, the terms are not confined to members of the Rattus and Mus genera. Compare the taxonomic classification of the Pack rat and Cotton mouse.

For more information about Rat, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.

Related topics: brain , memory , neurons , hippocampus