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Latest Amygdala Stories

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...

2009-11-17 14:01:31

Parents have long suspected that the brains of their teenagers function differently than those of adults. With the advent of magnetic resonance imaging, or MRI, we have begun to appreciate how the brain continues to develop structurally through adolescence and on into adulthood. High emotionality is a characteristic of adolescents and researchers are trying to understand how "Ëœemotional areas' of the brain differ between adults and adolescents.Scientists from the National Institute...

2009-10-26 22:35:28

Mother-child attachments in animals and possible parallels in people When do you first leave the nest? Early in development infants of many species experience important transitions"”such as learning when to leave the protective presence of their mother to start exploring the wider world. Neuroscientists have now pinpointed molecular events occurring in the brain during that turning point. Based on animal studies, the findings may shed light on the strength of attachments in many...

2009-10-21 13:02:16

Researchers have discovered that a primitive region of the brain responsible for sensorimotor control also has an important role in regulating emotional responses to threatening situations. This region appears to work in concert with another structure called the amygdala to regulate social and emotional behavior. Georgetown University Medical Center researchers have recently discovered that activation of a primitive brain region, the deep layers of superior colliculus (DLSC), elicits...

2009-09-16 06:51:43

TAU brain scientist says findings could lead to new neurological treatments The power of the imagination is well-known: it's no surprise that scary music is scarier with your eyes closed. But now neuroscientist and psychiatrist Prof. Talma Hendler of Tel Aviv University's Functional Brain Center says that this phenomenon may open the door to a new way of treating people with Alzheimer's, Parkinson's and other neurological diseases. In her new study, Prof. Hendler found that the simple act of...

2009-09-09 13:55:09

U.S. scientists say they have determined two different brain circuits might control the motivation to seek food and then consume it. University of Missouri researchers using laboratory rats said they discovered deactivating the basolateral amygdala -- a brain region involved in regulating emotion -- specifically blocked consumption of a fatty diet. Surprisingly, it had no effect on the rats wanting to repeatedly look for food. It appears that two different brain circuits control the...

2009-09-08 15:40:42

Scientists led a rat to the fatty food, but they couldn't make it eat.  Using an animal model of binge eating, University of Missouri researchers discovered that deactivating the basolateral amygdala, a brain region involved in regulating emotion, specifically blocked consumption of a fatty diet. Surprisingly, it had no effect on the rat wanting to look for the food repeatedly. "It appears that two different brain circuits control the motivation to seek and consume," said Matthew Will,...

2009-09-06 23:47:05

Israeli researchers say brain profiling may help detect soldiers at risk for suicide. The Tel Aviv University study of 50 Israeli soldiers, published in the Proceedings of the National Academy of Science, used functional magnetic resonance imaging to forecast which soldiers might be vulnerable to stress symptoms associated with post-traumatic stress disorder and therefore at more risk for suicide. Looking at the part of the brain called the amygdala, we were able to predict how many stress...

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2009-08-30 13:10:00

Finding could offer insight into autism and other disorders In a finding that sheds new light on the neural mechanisms involved in social behavior, neuroscientists at the California Institute of Technology (Caltech) have pinpointed the brain structure responsible for our sense of personal space. The discovery, described in the August 30 issue of the journal Nature Neuroscience, could offer insight into autism and other disorders where social distance is an issue. The structure, the...

2009-08-17 18:07:55

U.S. researchers say alcoholics display abnormal brain activity when processing facial expressions. The Boston University Medical Center researchers -- using magnetic resonance imaging -- found chronic alcoholism linked to physiological brain changes in emotional functioning. The study, published in Alcoholism: Clinical and Experimental Research, found people with a long history of alcoholism who have been abstinent for at least a month if not much longer, showed decreased and abnormal brain...


Word of the Day
Cthulhu
  • A gigantic fictional humanoid alien god being described with a head resembling an octopus and dragon wings and claws, around whom an insane cult developed.
  • Pertaining to the mythos of Cthulhu and additional otherworldly beings created by H. P. Lovecraft or inspired by his writings and imitators.
This word was invented in 1926 by H.P. Lovecraft for his short story, 'The Call of Cthulhu.' 'Cthulhu' may be based on the word 'chthonic,' which in Greek mythology refers to the underworld.
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