Neuroscience

Neurotransmitter orexin influences pupil size, research shows

The way the brain regulates pupil size is different from previously thought: fundamentally responsible is the neurotransmitter orexin, as researchers at ETH Zurich have now shown. This discovery could well alter our understanding ...

Medications

Long-term use of steroids could impair memory, study finds

Memory impairment associated with steroid use has been identified in a new study. The University of Bristol-led findings, published in PNAS, show great potential for the identification of drugs that could be adapted to treat ...

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