Amygdala Current Events | Amygdala News | 3
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Effects of social isolation traced to brain hormone
The anxiety and aggression that result from social isolation have been traced to altered levels of an enzyme that controls production of a brain hormone. view more (2007-11-15)
Context and personality key in understanding responses to emotional facial expressions
It is well appreciated that facial expressions play a major role in non-verbal social communication among humans and other primates, because faces provide rapid access to information about the identity as well as the internal states and intentions of others. view more (2008-08-06)
The regulation of negative emotions: Impact on brain activity
Emotions play an important role in the lives of humans, and influence our behavior, thoughts, decisions, and interactions. The ability to regulate emotions is essential to both mental and physical well-being. view more (2008-03-19)
'Faulty' brain connections may be responsible for social impairments in autism
New evidence shows that the brains of adults with autism are "wired" differently from people without the disorder, and this abnormal pattern of connectivity may be responsible for the social impairments that are characteristic of autism. view more (2008-06-13)
Clinical depression linked to abnormal emotional brain circuits
In what may be the first study to use brain imaging to look at the neural circuits involved in emotional control in patients with depression, researchers at the University of Wisconsin-Madison have found that brains of people with clinical depression react very differently than those of healthy people when trying to cope with negative situations. view more (2007-08-15)
Altering a protein makes mice less fearful
A University of Iowa study shows that loss or chemical inhibition of a protein, known as acid sensing ion channel protein (ASIC1a), reduces innate fear behavior in lab animals, making normally timid mice relatively fearless. view more (2007-08-02)
People with autism make more rational decisions, study shows
People with autism-related disorders are less likely to make irrational decisions, and are less influenced by gut instincts, according to research funded by the Wellcome Trust. The study adds to the growing body of research implicating altered emotional processing in autism. view more (2008-10-16)
Aging brains allow negative memories to fade
It turns out there's a scientific reason why older people tend to see the past through rose-coloured glasses. A University of Alberta medical researcher, in collaboration with colleagues at Duke University, identified brain activity that causes older adults to remember fewer negative events than their younger counterparts. view more (2008-12-17)
Fears learned by observing others are similar to those learned from direct experience
Humans acquire fears using similar neural processes whether they've personally experienced an aversive event or only witnessed it, according to a study by researchers at New York University's Departments of Psychology. view more (2007-03-16)
Study charts origins of fear
A team of researchers led by the University of Toronto has charted how and where a painful event becomes permanently etched in the brain - a discovery that has implications for pain-related emotional disorders such as anxiety and post-traumatic stress. view more (2005-09-16)
Scary Music Is Scarier with Your Eyes Shut
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... view more... (2009-09-16)
A mother's criticism causes distinctive neural activity among formerly depressed
Formerly depressed women show patterns of brain activity when they are criticized by their mothers that are distinctly different from the patterns shown by never depressed controls, according to a new study from Harvard University. view more (2009-04-01)
Genetic variant impairs communication within the brain
For some time now it has been known that certain hereditary factors enhance the risk of schizophrenia or a manic-depressive disorder. view more (2009-05-01)
Why antidepressants don't work for so many
More than half the people who take antidepressants for depression never get relief. view more (2009-10-26)
Food cue-related brain activity linked to obesity?
A unique pattern of gene expression observed in rats may be linked to a conditioned desire for food and excessive food intake, an article published today in BMC Biology suggests. view more (2007-04-27)
New neuroimaging analysis technique identifies impact of Alzheimer's disease gene in healthy brains
Brain imaging can offer a window into risk for diseases such as Alzheimer's disease (AD). A study conducted at the University of Kansas School of Medicine demonstrated that genetic risk is expressed in the brains of even those who are healthy, but carry some risk for AD. view more (2009-11-18)
High anxiety?
Right now, about half of all people who take medicine for an anxiety disorder don't get much help from it. And doctors have no definitive way to predict who will, and who won't, benefit from each anti-anxiety prescription they write. view more (2008-04-21)
'Hub' of fear memory formation identified in brain cells
A protein required for the earliest steps in embryonic development also plays a key role in solidifying fear memories in the brains of adult animals, scientists have revealed. An apparent "hub" for changes in the connections between brain cells, beta-catenin could be a potential target for drugs to enhance or interfere with memory... view more... (2008-09-29)
Three neuronal growth factors may be key to understanding alcohol's effects
Growth factors are a large and diverse group of polypeptides critical for the development of the central nervous system view more (2006-01-25)
In adolescence, girls react differently than boys to peers' judgments
Teenagers yearn to fit in and be accepted by their friends. A new study suggests that girls and boys think differently about being judged by their peers as they move through adolescence. view more (2009-07-15)
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