neurons

Identify the neural mechanism responsible for chronic pain

Around 1 in 5 Spaniards suffer from chronic pain that can be continuous or intermittent and that affects those who suffer it in such a way that many lose their appetite, are unable to work or perform any type of physical activity. Now, a team of scientists from the University of Bern (Switzerland) has identified a mechanism in the brain responsible for this chronic pain. Its discovery may open the way to new treatments for this medical problem. The study has been published in the journal Neuron.

They find some key cells to regulate circadian rhythms

A team of researchers from the University of Texas Southwestern Medical Center has identified a type of cells in the brain that play a decisive role in the regulation of circadian rhythms, a kind of internal biological clock that controls everything from our sleep patterns and metabolism to our metabolism. blood pressure and hormone production.

The nature of fear

A team of researchers from the National Center for Biological Sciences in Bangalore (India) has discovered that whether we are afraid or not is a matter of a “democratic vote” between the neurons in our brain. They decide by majority if we feel fear or not. The work has been published in the journal Nature Neuroscience.

Electrical stimulation of certain neurons impairs learning

The stimulation of dopaminergic neurons (that is, those in which the main neurotransmitter is dopamine, a substance related to pleasure and the development of addictions) in a structure of the brain called the substantia nigra can alter the learning process.

They discover why we lose old memories

Why is it sometimes so difficult for us to recall moments from the past? The answer lies in the creation of new neurons, according to the latest study by an international team of researchers from Canada and Japan.

Do animals have dreams too?

Some animals have dream experiences. What's more, while they sleep, dogs and cats perform movements that experts associate with this activity.

A compound of natural plants prevents Alzheimer's

A team of researchers from the Salk Institute has successfully completed an experiment with mice aimed at preventing the symptoms of Alzheimer's. Normally in these types of studies with laboratory mice, rodents develop the first symptoms of the disease in less than a year after their birth; But, thanks to the fisetin compound infused daily, this trend has been reversed, preventing progressive memory loss and learning disabilities.

Sleep repairs your brain

Sleep increases the reproduction of cells that are involved in the formation of myelin, the insulating material in nerve cell projections in the brain and spinal cord, according to a study published in the Journal of Neuroscience.

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