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News tagged with stimuli

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Response and recovery in the brain may predict well-being

(Medical Xpress)—It has long been known that the part of the brain called the amygdala is responsible for recognition of a threat and knowing whether to fight or flee from the danger.

Neuroscience created Feb 05, 2013 | popularity 5 / 5 (1) | comments 0 | with audio podcast

Brain activity predicts response to scopolamine

(HealthDay)—The neural response in the visual cortex while processing emotional information can predict which patients with major depressive disorder will respond to scopolamine, according to a study published ...

Psychology & Psychiatry created Jan 31, 2013 | popularity not rated yet | comments 0

Sorting out stroking sensations: Biologists find individual neurons in the skin that react to massage

The skin is a human being's largest sensory organ, helping to distinguish between a pleasant contact, like a caress, and a negative sensation, like a pinch or a burn. Previous studies have shown that these ...

Neuroscience created Jan 30, 2013 | popularity 5 / 5 (1) | comments 0 | with audio podcast

Tests conducted on Israel's Ariel Sharon reveal significant brain activity

A team of American and Israeli brain scientists tested former Israeli Prime Minister Ariel Sharon to assess his brain responses, using functional magnetic resonance imaging (fMRI). Surprisingly, Sharon showed ...

Neuroscience created Jan 29, 2013 | popularity 5 / 5 (1) | comments 0

Pavlov's rats? Rodents trained to link rewards to visual cues

In experiments on rats outfitted with tiny goggles, scientists say they have learned that the brain's initial vision processing center not only relays visual stimuli, but also can "learn" time intervals and ...

Neuroscience created Jan 23, 2013 | popularity not rated yet | comments 0 | with audio podcast

A light switch inside the brain

Activating and deactivating individual nerve cells in the brain is something many neuroscientists wish they could do, as it would help them to better understand how the brain works.

Neuroscience created Jan 18, 2013 | popularity not rated yet | comments 1

Discovery that some seizures arise in glial cells could offer new targets for epilepsy treatment

Epileptic seizures occur when neurons in the brain become excessively active. However, a new study from MIT neuroscientists suggests that some seizures may originate in non-neuronal cells known as glia, which ...

Neuroscience created Jan 16, 2013 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Itchy wool sweaters explained: Scientists uncover itch-specific nerve cells in skin

Johns Hopkins researchers have uncovered strong evidence that mice have a specific set of nerve cells that signal itch but not pain, a finding that may settle a decades-long debate about these sensations, ...

Neuroscience created Jan 02, 2013 | popularity 5 / 5 (1) | comments 0 | with audio podcast

Re-tuning responses in the visual cortex

New research led by Shigeru Tanaka of the University of Electro-Communications and visiting scientist at the RIKEN Brain Science Institute has shown that the responses of cells in the visual cortex can be ...

Neuroscience created Dec 21, 2012 | popularity not rated yet | comments 0

Neuroscience: The extraordinary ease of ordinal series

Familiar categories whose members appear in orderly sequences are processed differently than others in the brain, according to new research published by David Eagleman in the open access journal Frontiers in Neuroscience on Dec ...

Neuroscience created Dec 20, 2012 | popularity not rated yet | comments 0

The end of a dogma: Bipolar cells generate action potentials

To make information transmission to the brain reliable, the retina first has to "digitize" the image. Until now, it was widely believed that this step takes place in the retinal ganglion cells, the output ...

Medical research created Dec 19, 2012 | popularity 5 / 5 (3) | comments 0 | with audio podcast

The brain recruits its own decision-making circuits to simulate how other people make decisions

A team of researchers led by Hiroyuki Nakahara and Shinsuke Suzuki of the RIKEN Brain Science Institute has identified a set of brain structures that are critical for predicting how other people make decisions.

Neuroscience created Dec 14, 2012 | popularity not rated yet | comments 0

Infants learn to look and look to learn

(Medical Xpress)—Researchers at the University of Iowa have documented an activity by infants that begins nearly from birth: They learn by taking inventory of the things they see.

Psychology & Psychiatry created Dec 04, 2012 | popularity 5 / 5 (1) | comments 1 | with audio podcast

Where does it hurt? Pain map discovered in the human brain

(Phys.org)—Scientists have revealed the minutely detailed pain map of the hand that is contained within our brains, shedding light on how the brain makes us feel discomfort and potentially increasing our ...

Neuroscience created Nov 29, 2012 | popularity 5 / 5 (6) | comments 1 | with audio podcast

Offering a reward can improve visual awareness in stroke patients

Stroke patients who have difficulty paying attention to part of their visual field may perform better when offered a reward, a study by Imperial College London and Brunel University researchers has found.

Neuroscience created Nov 26, 2012 | popularity not rated yet | comments 0 | with audio podcast