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Posts Tagged ‘Neurons’

Researchers Engineer Light-Activated Skeletal Muscle

September 3rd, 2012 09:12 admin View Comments

Science

submeta writes “Researchers at MIT and the University of Pennsylvania have genetically engineered skeletal muscle cells to respond to light. The hope is that this ‘bio-integrated’ approach may lead to ‘highly articulated, flexible robots’. The technique, known as optogenetics, has previously been used to stimulate neurons in worms to fire.”

Source: Researchers Engineer Light-Activated Skeletal Muscle

Researchers Engineer Light-Activated Skeletal Muscle

September 3rd, 2012 09:12 admin View Comments

Biotech

submeta writes “Researchers at MIT and the University of Pennsylvania have genetically engineered skeletal muscle cells to respond to light. The hope is that this ‘bio-integrated’ approach may lead to ‘highly articulated, flexible robots.’ The technique, known as optogenetics, has previously been used to stimulate neurons in worms to fire.”

Source: Researchers Engineer Light-Activated Skeletal Muscle

Those Magnetic Neurons Birds Use to Steer? They’re Not Neurons, and Aren’t For Steering.

April 12th, 2012 04:53 admin View Comments
Categories: 80beats Tags: , , , , ,

Those Magnetic Neurons Birds Use to Steer? They’re Not Neurons, and Aren’t For Steering.

April 12th, 2012 04:53 admin View Comments
Categories: 80beats Tags: , , , , ,

Researchers Tweak Mouse Neurons To Activate Specific Memories

March 23rd, 2012 03:24 admin View Comments

Biotech

An anonymous reader writes “According to new study published in Nature (abstract), MIT researchers have figured out how to trigger specific memories in rats by hitting certain neurons with a pulse of light. From the article: ‘The researchers first identified a specific set of brain cells in the hippocampus that were active only when a mouse was learning about a new environment. They determined which genes were activated in those cells, and coupled them with the gene for channelrhodopsin-2 (ChR2), a light-activated protein used in optogenetics. … The light-activated protein would only be expressed in the neurons involved in experiential learning — an ingenious way to allow for labeling of the physical network of neurons associated with a specific memory engram for a specific experience. Finally, the mice entered an environment and, after a few minutes of exploration, received a mild foot shock, learning to fear the particular environment in which the shock occurred. The brain cells activated during this fear conditioning became tagged with ChR2. Later, when exposed to triggering pulses of light in a completely different environment, the neurons involved in the fear memory switched on — and the mice quickly entered a defensive, immobile crouch.’”

Source: Researchers Tweak Mouse Neurons To Activate Specific Memories

Researchers May Have Discovered How Memories Are Encoded In the Brain

March 22nd, 2012 03:02 admin View Comments

Medicine

Zothecula writes “While it’s generally accepted that memories are stored somewhere, somehow in our brains, the exact process has never been entirely understood. Strengthened synaptic connections between neurons definitely have something to do with it, although the synaptic membranes involved are constantly degrading and being replaced – this seems to be somewhat at odds with the fact that some memories can last for a person’s lifetime. Now, a team of scientists believe that they may have figured out what’s going on. Their findings could have huge implications for the treatment of diseases such as Alzheimer’s.”

Source: Researchers May Have Discovered How Memories Are Encoded In the Brain

Quantum Dots Can Get Nearby Neurons Firing

February 16th, 2012 02:54 admin View Comments

Hyperactive Visual Cortex Neurons May Cause Orange “O”s and Purple “P”s

November 18th, 2011 11:36 admin View Comments

New Neurons From Stem Cells Get Us Closer to Treating Parkinson’s

November 8th, 2011 11:46 admin View Comments
Categories: 80beats Tags: , , , , ,

Why Chilies Are Hot and Yogurt Puts Out the Fire

September 29th, 2011 09:40 admin View Comments

Australia

bazzalunatic writes “The hottest chili in the world was made by Australians earlier this year, but how did they get the chilies so hot? Seems that worm juice is the key to revving up the capsaicin. And milk and yogurt are best to douse the heat, as they have fats that can absorb the capsaicin — which actually hijacks the neurons that detect heat.”

Source: Why Chilies Are Hot and Yogurt Puts Out the Fire