Neuroscience

How the brain makes myelination activity-dependent

(Medical Xpress)—A major question regarding how axons acquire a coat of myelin, is the role of spiking activity. It is known that in culture systems oligodendroctyes will at least try to wrap anything that feels like an ...

Psychology & Psychiatry

Would an 'anti-ketamine' also treat depression?

Thirteen years ago, an article in this journal first reported that the anesthetic medication, ketamine, showed evidence of producing rapid antidepressant effects in depressed patients who had not responded to prior treatments. ...

Neuroscience

Long-term memory in the cortex

(Medical Xpress)—'Where' and 'how' memories are encoded in a nervous system is one of the most challenging questions in biological research. The formation and recall of associative memories is essential for an independent ...

Genetics

Disease gene discovered for frequent epilepsy in childhood

More than 50 million people worldwide have epilepsy, with a third of these being children. The most common forms of epilepsy in children occur without any apparent trigger and only affect certain regions of the brain. This ...

Psychology & Psychiatry

Do antidepressants impair the ability to extinguish fear?

An interesting new report of animal research published in Biological Psychiatry suggests that common antidepressant medications may impair a form of learning that is important clinically.

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