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Latest John Wemmie Stories

How Does The Brain Process Fear?
2013-02-05 04:55:00

Connie K. Ho for redOrbit.com — Your Universe Online A new study from the University of Iowa (UI) recently found the amygdala, an almond-shaped area of the brain, is not the only part of the brain managing fear; other regions, such as the brainstem, the insular cortex and the diencephalon, also play a role. “This research says panic, or intense fear, is induced somewhere outside of the amygdala,” explained the senior author of the study John Wemmie, who serves as an...

Effect Of Acid In The Brain
2012-05-18 13:57:21

UI team develops new way to look at brain function University of Iowa neuroscientist John Wemmie, M.D., Ph.D., is interested in the effect of acid in the brain. His studies suggest that increased acidity or low pH, in the brain is linked to panic disorders, anxiety, and depression. But his work also suggests that changes in acidity are important for normal brain activity too. "We are interested in the idea that pH might be changing in the functional brain because we've been hot on the...

2009-11-25 14:50:32

Breathing carbon dioxide can trigger panic attacks, but the biological reason for this effect has not been understood. A new study by University of Iowa researchers shows that carbon dioxide increases brain acidity, which in turn activates a brain protein that plays an important role in fear and anxiety behavior. The study, published in the Nov. 25 issue of the journal Cell, offers new possibilities for understanding the biological basis of panic and anxiety disorders in general and may...

2009-04-29 08:33:56

Disrupting a brain protein produces antidepressant-like effect in mice A brain protein involved in fear behavior and anxiety may represent a new target for depression therapies, according to a study by researchers at the University of Iowa and the Iowa City Veterans Affairs Medical Center. The results appear in the April 29 issue of the Journal of Neuroscience. Depression affects at least 14 million American adults and can be severely disabling. However, the causes of depression are not well...


Word of the Day
holluschickie
  • A 'bachelor seal'; a young male seal which is prevented from mating by its herd's older males (mated bulls defending their territory).
This comes from the Russian word for 'bachelors.'
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