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Tag: "brain" at biology news

How appetite-stimulating brain cells work overtime during fasting

During periods of fasting, brain cells responsible for stimulating the appetite mak...ealed a link between active thyroid hormone in the brain and increases in an "uncoupling" protein (UCP2) that boosts the number of power-generating mitochond...

Mimicking how the brain recognizes street scenes

...ch at MIT applied a computational model of how the brain processes visual information to a complex, real wo...le have been talking about computers imitating the brain for a long time," said Poggio, who is also the Eugene McDermott Professor in the Department of Brain...

Lithium builds gray matter in bipolar brains, UCLA study shows

...nce imaging (MRI) to map the entire surface of the brain in people diagnosed with bipolar disorder. Whe...increasing the amount of gray matter in particular brain areas, which in turn suggests that existing gray matter in these regions of bipolar brains may be un...

When your brain talks, your muscles don't always listen

... a miraculous communications network involving the brain at the command center, the spinal cord, billions u...sity of Connecticut, a class on the biology of the brain introduced him to the nervous system and movement, and he was hooked. His interests were further piq...

3 proteins may play important role in nerve-cell repair

Some mature brain cells can grow new extensions when the amount of t...ns could be important targets for treating stroke, brain and spinal cord injuries and also neurodegenerative diseases," says principal investigator Yoshinaga...

Stem cells act through multiple mechanisms to benefit mice with neurodegenerative disease

...y throughout the brain, did much more than replace brain tissue destroyed by the disease. Some of the trans...m cells even though they are taken from developing brain tissue). Both types of human stem cells were actually somewhat more effective than the mouse neural ...

Scientists find hormone activity explains adolescent mood swings

...y acts like a tranquilizer, acting at sites in the brain that "calm" brain activity. In the adult, this stress hormone helps the individual adapt to stress, with a calming eff...

Bisexual fruit flies show new role for neurochemical

... receptors is controlled by levels of a ubiquitous brain chemical, University of Illinois at Chicago resear...port proteins play important, unsuspected roles in brain function," Featherstone said. "We think we'll be able to learn a lot about perception and developmen...

Common gene version optimizes thinking -- but with a possible downside

...e the effects of variation in the human gene for a brain master switch, DARPP-32. The researchers identif...the gene and showed how it impacts the way two key brain regions exchange information, affecting a range of functions from general intelligence to attention....

Robotic exoskeleton replaces muscle work

...ree days later. Electrical signals sent by the brain to our muscles tell them how to move. In people wi...leg and those electrical signals received from the brain were translated into movement by the exoskeleton. "The (artificial) muscles are pneumatic. When ...

New study challenges 'critical period' in childhood vision development

Understanding how the human brain learns to perceive objects is one of the ultimate ...ive to the widely noted "critical period" that the brain undergoes during childhood. The critical period theory asserts that the brain's learning mechanisms...

Newborn brains grow vision and movement regions first

The regions of the brain that control vision and other sensory information ...rols abstract reasoning. In addition, the type of brain tissue called gray matter, which contains most of the neurons or nerve cells, grew much more robustl...

Research finds music training 'tunes' human auditory system

...elationship between the brainstem -- a lower order brain structure thought to be unchangeable and uninvolve...ex processing -- and the neocortex, a higher order brain structure associated with music, language and other complex processing. These findings are in li...

Cold sore virus might play role in Alzheimer's disease

...sores, allowing the virus to be more active in the brain compared to other forms of the gene. The new findi...poE-4 form of the gene have more herpes DNA in the brain regions that are affected by Alzheimer's, compared to Alzheimer's patients who also have herpes but ...

Robotic therapy helps restore hand use after stroke

...t UCI. "Robot-assisted therapy may help rewire the brain and make weak limbs move better long afterwards." ... inch, the robot helps to complete the task so the brain relearns what it's like to make the full movement." __IMAGE_2 In the UCI study, each patient, ...

Reading hidden intentions in the human brain

...tional magnetic resonance imaging (fMRI) to assess brain activity while subjects concentrated on their choi..., consistent with the idea that this region of the brain participating in the reflection of an individual on his or her own mental state. ...

Wired for sound: How the brain senses visual illusions

...ght. Investigating the timing and location of the brain processes that underlie this illusory effect ?the ...ientists measured event-related potentials (ERPs), brain responses that are directly related to the perceptual experiences induced by sensory stimuli, using ...

Scientists discover new, readily available source of stem cells

...eated from AFS cells into mice with a degenerative brain disease. The cells grew and "re-populated" the diseased areas. In addition, bone cells produced from the stem cells were successfully used to grow bony tissue in mice, and liver cells were able to secrete urea, which the liver produces from ammonia. ...

Trusting your instincts leads you to the right answer

...more likely to be correct because the subconscious brain recognises a rotated version of the same object as...different from the original, whereas the conscious brain sees the two objects as identical. For the conscious brain, an apple is still an apple whether rotat...

Angelman syndrome deficits rescued in mice

...nhibition of CaMKII, an enzyme highly expressed in brain regions affected by Angelman syndrome. The results, which appear in the March issue of Nature Neuroscience (currently available online), reveal an important part of the mechanism underlying the condition and point to potential therapeutic targets ...

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