The locus coeruleus (LC) is a small region of the brainstem that produces norepinephrine, a chemical with powerful effects on arousal and wakefulness which plays an important role in the body's ...

Previous work has demonstrated the importance of genetic factors and stress-sensitive circuits in the development of affective disorders. Anxiety and numerous psychological disorders are comorbid with ...

Our most popular blog post last year was all about dopamine, the sexiest of the brain’s chemical signals involved in ADHD. Dopamine is sexy, and has even become a bit of an internet meme, because of ...

Researchers have shown in mice that brain cells known as astrocytes are required for a signaling chemical called norepinephrine to modify brain activity, changing the textbook understanding that ...

Epinephrine and norepinephrine are hormones and neurotransmitters that help the body respond to stress or fear. Epinephrine increases heart rate and opens airways during emergencies. Norepinephrine ...

Little is known regarding systemic and regional hemodynamic effects of norepinephrine (NE) in hypotensive neonates after hypoxia-reoxygenation (H-R). We hypothesized that NE would improve cardiac ...

The neuromodulator norepinephrine has an unexpected, direct action on auditory processing of complex signals, specifically bird songs in the zebra finch, new research suggests. For neuroscientists ...

Researchers at Washington University School of Medicine in St. Louis have upended the decades-old dogma of how connections between brain cells are rearranged during states of heightened vigilance or ...