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Hippocampal 'Anxiety' Cells Identified

News   Feb 01, 2018 | Original Story From Columbia University Medical Centre

Hippocampal Cells Fire When The Animal is in a Threatening Environment, Signal Anxiety

Using optogenetics, anxiety cells in the brains of mice light up when the animal is stressed. Source: Lab of Rene Hen, PhD, Columbia University Irving Medical Center



More Than Just an Unpleasant Sensation


Pain is a negative feeling that we want to get rid of as soon as possible. In order to protect our bodies, we react for example by withdrawing the hand. This action is usually understood as the consequence of the perception of pain. A team from the Technical University of Munich (TUM) has now shown that perception, the impulse to act and provision of energy to do so take place in the brain simultaneously and not, as was expected, one after the other.


Hurt Hearing in Havana Hardly Hysteria


A team of University of Miami Miller School of Medicine faculty, along with collaborators from the University of Pittsburgh, today presented the first report of acute symptoms and clinical findings in 25 diplomatic personnel living in the U.S. Embassy in Havana, Cuba, who experienced severe neurosensory symptoms after exposure to a unique sound and pressure phenomenon.


Attention, Please!


Inside the brain, the act of anticipating is an exercise in focus, a neural preparation that conveys important visual, auditory or tactile information about what’s to come.Now, brain research among 6- to 8-year-old children shows not only this expectation in real time, but also how anticipation relates to executive function skills.



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