Neuroscience

Why myelinated mammalian nerves are fast and allow high frequency

University of Alabama at Birmingham researchers, for the first time ever, have achieved patch-clamp studies of an elusive part of mammalian myelinated nerves called the Nodes of Ranvier. At the nodes, they found unexpected ...

Neuroscience

Video: Scientists visualize pain's pathway

The lab of Stephen Waxman, Bridget M. Flaherty Professor of Neurology and of Neuroscience, has identified the key role of sodium channels arrayed on nerve cells in experience of pain.

Neuroscience

Interactions discovered in cells insulating nerve pathways

Schwann cells form a protective sheath around nerve fibres and ensure that nerve impulses are transmitted rapidly. If these cells are missing or damaged, severe neurological diseases may occur as a result. Researchers at ...

Health

Nerve stimulation and repetitive sounds help improve hearing

Combining seizure-preventing electrical stimulation with repetitive musical tones improves processing of sounds in the brain, according to new research. The discovery may provide relief for chronic ringing in the ears (tinnitus) ...

Medical research

Spinal organoids mimic neurodegenerative disease

'Organoids' that mimic the developing spinal cord could assist research and drug development for neurodegenerative diseases such as spinal muscular atrophy and amyotrophic lateral sclerosis.

Neuroscience

How can doctors tell if you wake up during surgery?

Waking up during surgery – it's terrifying to think about. But it does happen. There is evidence that around 5 per cent of people may experience so-called anaesthesia awareness at some point on the operating table, though ...

Neuroscience

Nerve-on-a-chip platform makes neuroprosthetics more effective

EPFL scientists have developed a miniaturized electronic platform for the stimulation and recording of peripheral nerve fibers on a chip. By modulating and rapidly recording nerve activity with a high signal-to-noise ratio, ...

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Action potential

An action potential (or nerve impulse) is a transient alteration of the transmembrane voltage (or membrane potential) across an excitable membrane generated by the activity of voltage-gated ion channels embedded in the membrane. Action potentials play multiple roles in several types of excitable cells such as neurons, myocytes, and electrocytes. The best known action potentials are pulse-like waves of voltage that travel along axons of neurons.

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