Blind tadpoles learn visually with eyes grafted onto tail, neurotransmitter drug treatment

Blind tadpoles were able to process visual information from eyes grafted onto their tails after being treated with a small molecule neurotransmitter drug that augmented innervation, integration, and function of the transplanted organs. The work, which used a pharmacological reagent already approved for use in humans, provides a potential road map for promoting innervation — the supply of nerves to a body part — in regenerative medicine.

Read More...

Comments Off on Blind tadpoles learn visually with eyes grafted onto tail, neurotransmitter drug treatment

Dopamine levels fall during migraine attacks, brain scans show

Using PET scans of the brain, researchers showed that dopamine falls and fluctuates at different times during a migraine headache.

Read More...

Comments Off on Dopamine levels fall during migraine attacks, brain scans show

Man with quadriplegia employs injury bridging technologies to move again — just by thinking

A subject who was paralyzed below his shoulders in a bicycling accident, is believed to be the first person with quadriplegia in the world to have arm and hand movements restored with the help of two temporarily implanted technologies. A brain-computer interface with recording electrodes under his skull, and a functional electrical stimulation (FES) system activating his arm and hand, reconnect his brain to paralyzed muscles.

Read More...

Comments Off on Man with quadriplegia employs injury bridging technologies to move again — just by thinking

When writing interferes with hearing

A cochlear implant is an electronic device capable of restoring hearing in a profoundly deaf person by stimulating the nerve endings in the inner ear. However, results can be extremely variable. Using brain imaging techniques, a neuroscientist and a surgeon have managed to predict the success of a cochlear implant among people who became profoundly deaf in their adult life.

Read More...

Comments Off on When writing interferes with hearing

Psychologists enlist machine learning to help diagnose depression

Cognitive neuroscientists are using the Stampede supercomputer to provide accurate predictions of risk for those with depression and anxiety. They have been able to classify individuals with major depressive disorder with roughly 75 percent accuracy using a machine learning approach. Stampede 2 — which will come online later in 2017 — will provide the increased computer processing required to incorporate more data and achieve even greater accuracy.

Read More...

Comments Off on Psychologists enlist machine learning to help diagnose depression

Microrna treatment restores nerve insulation, limb function in mice with MS

Scientists partially re-insulated ravaged nerves in mouse models of multiple sclerosis (MS) and restored limb mobility by treating the animals with a small non-coding RNA called a microRNA. In a new article, researchers report that treatment with a microRNA called miR-219 restarted production of a substance called myelin that is critical to normal function of the central nervous system.

Read More...

Comments Off on Microrna treatment restores nerve insulation, limb function in mice with MS

Graphene-based neural probes probe brain activity in high resolution

Graphene-based transistors enable a flexible neural probe with excellent signal-to-noise ratio. Such probes are useful for examining neural activity for understanding diseases, as well as in neuroprosthetics for control of artificial limbs.

Read More...

Comments Off on Graphene-based neural probes probe brain activity in high resolution

Why are primates big-brained? Researchers’ answer is food for thought

Brain size in primates is predicted by diet, an analysis by a team of anthropologists indicates. These results call into question “the social brain hypothesis,” which has posited that humans and other primates are big-brained due to factors pertaining to sociality.

Read More...

Comments Off on Why are primates big-brained? Researchers’ answer is food for thought