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Archive for the ‘ASIC1a’ Category

ASIC1a and the fear of drowning

Posted in Amygdala, ASIC1a, tagged , , , , , , , , , on November 27, 2009 | Leave a Comment »

Image by Sbrimbillina via Flickr Here’s a gene whose relationship to mental function is very straightforward.  If you hold your breath, your blood pH falls (more CO2 leads to more free H+ protons dissolved in your blood stream).  You also may become anxious, or worse if you are forced to hold your breath.  How does [...]

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Nothing is so much to be feared as the proton sensor ASIC1a

Posted in Amygdala, ASIC1a, Cingulate cortex, Glutamate, Stria terminalis, tagged , , on December 14, 2007 | Leave a Comment »

Image via Wikipedia Many of the unpleasant feelings and physiological changes associated with fear and anxiety can be traced back to a tiny brain region known as the amygdala. Neuroimaging studies often find this region abnormally active in people having difficulty down-regulating negative emotions. It is no surprise then, that when genes that regulate innate [...]

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