Neuroscience

Sudden stress shifts human brain into survival mode

(Medical Xpress) -- In threatening situations, the brain adapts within seconds to prepare for an appropriate response. Some regions are temporarily suppressed. Others become more active and form temporarily alliances for ...

Neuroscience

What stress does to the brain

Researchers at ETH Zurich have shown for the first time that selective release of the neurotransmitter noradrenaline reconfigures communication between large-scale networks in the brain. Their findings provide insights into ...

Neuroscience

Learning and unlearning to fear: The two faces of noradrenaline

Emotional learning can create strong memories and powerful emotional responses, but flexible behavior demands that these responses be inhibited when they are no longer appropriate. Scientists at the RIKEN Brain Science Institute ...

Addiction

Breaking Bad and crystal meth—a chemical reaction

Crystal meth has at least two faces, in common with those people unfortunate enough to succumb to its charms, as these horrific before-and-after pics show. I'd like to look at the drug chemically, to shine a light on what ...

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