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Amygdala in Medical News

Heightened level of amygdala activity may cause social deficits in autism

Something strange is going on in the amygdala an almond-shaped structure deep in the human brain among people with autism. Researchers at the University of Washington have discovered an increased pattern of brain activity in the amygdalas of adults with autism that may be linked to the socia...

Researchers Find Fewer Neurons in the Amygdala of Males with Autism

Researchers at the University of California, Davis, M.I.N.D. Institute have discovered that the brains of males with autism have fewer neurons in the amygdala//, a part of the brain involved in emotion and memory. David Amaral, research director of the UC Davis M.I.N.D. Institute, and former ...

Fewer Neurons in Amygdala of Autistic Males

Several men and boys with autism suffer from poor social and communication skills as well as a diminished number of neurons in their amygdala, according to the findings// of a new study. David Amaral and Cynthia Mills Schumann of the University of California, Davis conducted a survey on the num...

Measuring brain atrophy in patients with mild cognitive impairment

...s hippocampus. The extent to which volumes of the amygdala the section of the brain associated with emotions... Baseline volume measurements of the hippocampus, amygdala and temporal horn were evaluated as predictors of ...tients with smaller volumes of the hippocampus and amygdala showed more rapid clinical decline on these tests....

Fear Response May Stem From Protein in Brain

...ications that will turn off the fear switch in the brain, and therefore significantly reduce anxiety." The researchers looked at the neurons in the amygdala of mice that didn't have the TRPC5 protein, and found that they did not fire as well as those in the brains of normal mice. These mice would not b...

Brain Anatomy Could Point to Autism

...sor of psychiatry. "We found enlargement of the amygdala in very young children with autism at 2 years of a...e 2- to 4-year-old time interval," he said. The amygdala is a structure that has previously been implicated...stic children were more likely to have an enlarged amygdala at 2 and 4. However, the researchers did not fi...

A mother's criticism causes distinctive neural activity among formerly depressed

...these formerly depressed participants are processing criticism, some brain areas thought to be involved in emotion regulation are less active, and the amygdala is actually more active, compared to the healthy controls," says Hooley. "We know that this is not linked to them being symptomatic now. These finding...

Aging brains allow negative memories to fade

... region involved in learning and memory, when shown negative images. Scans also showed that older participants had increased interactions between the amygdala and the dorsolateral frontal cortex, a brain region involved in higher thinking processes, like controlling emotions. The older participants were usi...

Mind (Body and Spirit) Over Madness

... Free Your Spirit - Studies show that people who meditate regularly have more activity in their left frontal cortex and less activity in their amygdala - both of which are associated with more serene emotional states--than people who don't. To try it at home, Heather Lilleston, an instructor at New Yo...

Depression Heightens Sensitivity to Pain

...face of pain. Compared with the controls, patients with depression showed increased activation in certain areas of their brain, including the right amygdala -- a brain region tied to emotional responses. This increased activity also correlated to higher helplessness scores on the questionnaires of the pati...
Amygdala in Medical Definition

Depolarization-induced suppression of inhibition

...in other areas of the brain such as the basal ganglia , the cortex , the amygdala , and the hypothalamus (Katona et al. 2001, Jo et al. 2005, Bodor et...Hajos N, Freund TF. (2001) Distribution of CB1 cannabinoid receptors in the amygdala and their role in the control of GABAergic transmission. J Neurosci. Dec 1;...

Neuropsychiatry

... damage Kaye et al (2005), Uber and Treasure (2005) Bipolar disorder Narcissistic Prefrontal cortex and hippocampus, anterior cingulate, amygdala Barrett et al (2003), Vawter, Freed, & Kleinman (2000) Improved patient care Further, it is agrued that this nexus will allow a more r...
Amygdala in Medical Dictionary

Temporal

...Information on functions associated with the temporal lobes. ... Temporal Lobes. Flash Movie (200k) ... Temporal Lobe and Language Compensation. amygdala Plays ... Temporal arteritis information including symptoms, diagnosis, misdiagnosis, treatment, causes, patient stories, videos, forums, preven...

Sucrose

...y conditioned to associate a Pavlovian cue with free sucrose pellets. ... Similarly, sucrose ingestion normalizes CRF levels in hypothalamus and amygdala ... ...
Amygdala in Biological News

Brain difference in psychopaths identified

... fear and aggression, and the orbitofrontal cortex (OFC), the region which deals with decision making. There is a white matter tract that connects the amygdala and OFC, which is called the uncinate fasciculus (UF). However, nobody had ever studied the UF in psychopaths. The team from King's used an imaging me...

Genes determine whether sugar pills work

...ebo had a significant reduction in activity in the amygdala in the temporal lobe, while this reduction was not found in the others. In previous research the amygdala has stood out as a key structure for emotional rea...that it is a genetic effect on the activity in the amygdala that influences the propensity to respond to a pla...

Pregnant mice block out unwelcome admirers to protect their pups

...h in this area had focussed almost exclusively on other brain circuits. The main olfactory bulb likely achieves its control through projections to the amygdala and the hypothalamus, those regions of the brain that regulate emotional and reproductive behaviour through the release of hormones. Dopamine is a...

Hunger hormone: Makes food more attractive

...t brain regions, subjects also answered questions about their mood and appetite before and after seeing sets of images. The effects of ghrelin on the amygdala and OFC correlated with the self-rated hunger ratings. This study has shown that ghrelin action is more complex than previously thought and furth...

Effects of social isolation traced to brain hormone

...s suggest that the decrease of 5-alpha-reductase type I and the consequent reduction in the hormone may impair the function of circuits leading to the amygdala and explain the aggressive behavior, perhaps related to anxiety, in socially isolated mice. "Humans respond to similar stress in very similar ways...

How the brain handles surprise, good and bad

... intended to establish whether there were specific amygdala neurons activated by rewarding or aversive stimuli...r the air puffwhich aimed to establish whether the amygdala harbored specific surprise-processing circuitry. The researchers analyses of the activity of the amygdala neurons did reveal different types of neurons. Som...

Putting feelings into words produces therapeutic effects in the brain

...e body in times of danger. Scientists see a robust amygdala response even when they show such emotional photog...ical Science. The study showed that while the amygdala was less active when an individual labeled the fee...e name ‘Harry,’ you don’t see the reduction in the amygdala response. “When you put feelings into words, ...

Brain's reward circuit activity ebbs and flows with a woman's hormonal cycle

...s showed that when the women were anticipating a reward, they activated the amygdala and a cortex area behind the eyes that regulates emotion and reward-related...ain activity was directly linked to levels of sex hormones. Activity in the amygdala and hippocampus was in lockstep with estrogen levels regardless of cycle ph...

The influence of the menstrual cycle on the female brain

...n monetary rewards is observed. During the follicular phase, this is in the amygdala and the orbitofrontal cortex. (The higher the T values, the more the colors...ctivate the brain regions involved in processing emotions, particularly the amygdala and the orbitofrontal cortex, to a greater extent during the follicular pha...

UCLA: How does your brain respond when you think about gambling or taking risks?

...money. A surprising finding is that as the amount of a potential loss increases, the parts of the brain that process fear or anxiety, such as the amygdala or the insula, are not activated. "What we found instead," Poldrack said, "is you don't turn anything up. You turn down the reward areas of the b...
Amygdala in Biological Technology

Human Universal cDNA Library Array I

... Brain: whole Liver Spleen Brain: amygdala Lung Testis Brain: Caudate Nucleus Lymp...
Amygdala in Biological Definition

Limbic system

...It consists of several subcortical structures located around the thalamus : hippocampus : involved in the formation of long-term memory amygdala : involved in aggression and fear cingulate gyrus (the circular shape of the cingulate gyrus resembles that of a "limb", hence the name) forn...

Memory

...tems, and thus hypothesize their function in the normally working brain. The physiology of memory Brain areas such as the hippocampus , the amygdala or the mammillary bodies and are thought to be involved in certain kinds of memory. For example, the hippocampus is believed to be involved in spa...
Amygdala in Biological Dictionary

Dimorphism

... dimorphism : ... Online Shopping at SpotCost.com - New and used books like Sexual Dimorphism of the Bed Nucleus of the Stria Terminalis and the amygdala Advances in Anatomy Embryology... Some Caribbean lizards' strong sexual dimorphism allows them to colonize much ... Evolutionary biologists att...

Conspecific

...; neu ... uli from other fishes, including predators, presumed competitors ( conspecific ... Categorical response to conspecific stimuli in medial amygdala ... Conspecific stimuli, whether from males or females, significantly activated the ... ... through conspecific sperm precedence, the. competi...
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