Next Event

Friday, October 24, 2008, 07:00 PM: Life Extension with Jerry Emanuelson

Jerry will be talking about his 25+ year experience with life extension treatments, including hormone injections, his longevity doctor, what treatments to ask a doctor for, how to find and guide a doctor, an interesting example of the 'medical priesthood vs. empowered patient' conflict as more healthcare treatments are about prevention/enhancement, getting his DNA scanned with deCODEme and opensourcing his genome on the SNPedia.com, and more.

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Fear

Be Afraid, Be Very Afraid, If You Learned To: Study On Fear Responses Suggests New Understanding Of Anxiety Disorders

A new study on rats has identified a part of the brain's cortex that controls learned but not innate fear responses. The results suggest that hyperactivity in a region of the prefrontal cortex might contribute to disorders of learned fear in humans, such as post-traumatic stress disorder and other anxiety disorders. This study contradicts prior thinking that the amygdala is sufficient for processing and expressing fear. "This is the first paper demonstrating that a region of the cortex is involved in learned fear but not in innate fear."

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New insights into the neural basis of anxiety

Researchers identify a neural circuit that makes mice perceive ambiguous situations as threatening. People who suffer from anxiety tend to interpret ambiguous situations, situations that could potentially be dangerous but not necessarily so, as threatening. Researchers report that a receptor for the messenger serotonin and a neural circuit involving a brain region called the hippocampus play crucial roles in mediating fear responses in ambiguous situations.

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(C) 2007 Boulder Future Salon and the Acceleration Studies Foundation.