Tag: "amygdala" at medical news
News tips from the Journal of Neuroscience
... amygdala, particularly the lateral nucleus of the amygdala
(LA), where the CSUS association may be stored. Bilateral amygdala
lesions cause severe impairment of fear conditioning, but the left and right amygdala
Neuroscientists identify how trauma triggers long-lasting memories in the brain
...ng-lasting memory. Some of the rats then had their amygdala
chemically stimulated in order to determine what r...ats that received both the mild foot-shock and the amygdala
stimulation back in the well-lit compartment, the researchers found the rats tended to remain there,...
Study charts origins of fear
...rain. "While we know it exists in the hippocampus, amygdala
and the pre-frontal cortex, we don't know exactly how it alters them," Zhuo says. "Once we understand the implications for each part, we will be able to reduce levels of NR2B accordingly and effectively reduce fear memory. In the future, perhaps peop...
Researchers shed light on anxiety and alcohol intake
...of CREB and NPY were innately lower in the central amygdala
and medial amygdala
of P rats," explains Dr. Pandey, "brain areas which play a crucial role in anxiety behaviors and whi...
Brain protein linked to alcoholism and anxiety
... CREB and neuropeptide Y in certain regions of the amygdala
-- an area of the brain associated with emotion, f...reditary deficiency of CREB protein in the central amygdala
is associated with high anxiety and alcohol-drinking behaviors," said lead researcher Subhash Pandey...
New findings help explain how brain pathways control body weight
...ular hypothalamus (PVH) and a subpopulation of the amygdala
were controlling food intake, while MC4Rs on neur...s suggested to us that the MC4Rs in the PVH and/or amygdala
were key MC4Rs in the regulation of body weight." The authors went on to discover functional diverge...
Studying brain activity could aid diagnosis of social phobia
...rchers found that the area of the brain called the amygdala
becomes increasingly hyperactive when patients loo...her, they found that the increased response in the amygdala
correlated with the patients' level of social phobia symptoms. The amygdala
is in the limbic part of...
Trust-building hormone short-circuits fear in humans
...approaches to treating diseases thought to involve amygdala
dysfunction and social fear, such as social phobia...n the human brain." "The observed changes in the amygdala
are exciting as they suggest that a long-acting analogue of oxytocin could have therapeutic value in...
Reduced brain volume may predict dementia in healthy elderly people
...me, or atrophy, in parts of the brain known as the amygdala
and hippocampus may predict which cognitively healthy elderly people will develop dementia over a six-year period, according to a study in the January issue of Archives of General Psychiatry, one of the JAMA/Archives journals. New strategies may be a...
Activation of a protein solidifies fear memory in the brain
... fearful memory. Conversely, inhibiting PKA in the amygdala
disrupted memory reconsolidation. "These findings show bidirectional behavioral plasticity after memory retrieval," Taylor said. "Moreover, we find that amygdalar PKA activation does not affect other memory processes after retrieval, including extin...
UCI researchers prove a single memory is processed in three separate parts of the brain
...ss hormones play in creating lasting memories. The amygdala
has been shown to be activated by the release of t... hippocampus, the anterior cingulate cortex or the amygdala
immediately after either the contextual training on day one or after the foot-shock training on day ...
UCI researchers identify first compound to block progression of Alzheimer's disease
...mice. According to LaFerla, this is because in the amygdala
there is less production of the alpha secretase en...his enzyme could not be increased by AF267B in the amygdala
and the production of beta-amyloid could not be prevented. LaFerla's research has shown previously t...
Brain imaging can predict effectiveness of cognitive behavior therapy for treating depression
... words in a brain region called the amygdala. "The amygdala
helps us to recognize things as being emotional. In some people with depression, the amygdala
doesn't turn off as fast as it should after it recognizes something as being negative. The subgenual...
UCI researchers find that, even at rest, men's and women's brains behave differently
... while the subjects are at rest. In men, the right amygdala
is more active and shows more connections with oth...o outside stimulus. Conversely, in women, the left amygdala
is more connected with other regions of the brain. In addition, the regions of the brain with which ...
Irrational decisions driven by emotions
...l, to widely differing amounts. Interestingly, the amygdala
was active across all participants, regardless of whether they behaved rationally or irrationally, suggesting that everyone experiences an emotional reaction when faced with such choices. However, we found that more rational individuals had greater a...
Brain chemical plays critical role in drinking and anxiety
...els of BDNF in the central and medial areas of the amygdala
were lowered, anxiety and alcohol consumption incr...t. When levels of BDNF in the central and medial amygdala
were restored to normal by injecting BDNF, anxiety and alcohol consumption diminished. The researc...
Anticipation plays a powerful role in human memory, brain study finds
...ists found that two key regions of the brain - the amygdala
and the hippocampus - become activated when a pers...pating a difficult situation. Scientists think the amygdala
is associated with the formation of emotional memories, while the hippocampus helps the brain form l...
Emotional control circuit of brain's fear response discovered
...y that resolved this conflict. They found that the amygdala
generates the signal telling the brain that an emo...ars a loud banging sound in the near distance, the amygdala
would immediately light up. But instead of always running in the opposite direction from the sound,...
Serotonin receptor: A rheostat in brain for emotion that may be linked to depression
...fic changes in 5-HT1A autoreceptors and associated amygdala
reactivity may impact a person's risk for developi... depression and other psychiatric disorders. The amygdala
is a critical component of brain circuitry that processes clues from the environment about potential...
Involvement of the amygdala in systemic lupus erythematosus
...the brain during stress, specifically damaging the amygdala
(a part of the brain that is involved in emotion) ...lthy control participants, damage was found in the amygdala
of patients with SLE, especially in patients with anti-NMDA receptor antibodies. These results offer...