amygdala


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Related to amygdala: thalamus

amygdala

 [ah-mig´dah-lah]
1. an almond-shaped structure.

a·myg·da·la

, gen. and pl.

a·myg·da·lae

(ă-mig'dă-lă, -lē),
1. The lymphatic tonsils (pharyngeal, palatine, lingual, laryngeal, and tubal).
2. General term used for the amygdaloid body [TA], which is thought to assess and assign emotional valence to somatic, visceral, and olfactory sensory input.
[L. fr. G. amygdalē, almond; in Mediev. & Mod. L., a tonsil]

amygdala

/amyg·da·la/ (ah-mig´dah-lah)
1. almond.
2. an almond-shaped structure.

amygdala

(ə-mĭg′də-lə)
n. pl. amygda·lae (-lē)
Either of two small, almond-shaped masses of gray matter that are part of the limbic system and are located in the temporal lobes of the cerebral hemispheres. Also called amygdaloid nucleus.

amygdala

[amig′dələ]
Etymology: Gk, amygdale, almond

a·myg·da·la

, gen. and pl. amygdalae (ă-mig'dă-lă, -lē)
Denoting the cerebellar tonsil, as well as the lymphatic tonsils (pharyngeal, palatine, lingual, laryngeal, and tubal).
[L. fr. G. amygdalē, almond; in Mediev. & Mod. L., a tonsil]

amygdala

An almond-shaped brain nucleus at the front of the temporal lobe. The amygdala is concerned with memory registration.

amygdala (·migˑ·d·l),

n a key component of the limbic system in the brain, involved in the experience of anxiety, distress, and fear.

amygdala

1. the corpus amygdaloideum.
2. (rare) a tonsil.
References in periodicals archive ?
In a study conducted in a rat model of AUD, the researchers found that lower levels of MR gene expression in the amygdala (but not in the prefrontal cortex) were associated with increased anxiety-like behavior and compulsive drinking, compared to rats not exposed to alcohol.
The study, which appeared in the May 10 print issue of the Journal of Neuroscience, is the first to quantify these "double-projecting" hippocampal neurons and explain how they convey contextual information more efficiently for fear responses, compared to hippocampal neurons that project only to either the mPFC or the amygdala.
Once you are in the position to stop the amygdala initiating panic and anxiety attacks this ultimately turns into a brand new behavior which changes the previous behavour where panic and anxiety attacks are brought on easily.
He added: "This is in line with suggestions that our amygdala signals aversion to acts that we consider wrong or immoral.
Tawakol assessed amygdala and bone marrow activation, and evaluated inflammatory response in arteries.
These differences include amygdalas that are smaller and less responsive.
The scientists then used optogenetics, a technique for controlling neurons with light, to switch off the PVT neurons linked to the amygdala.
Published in Nature, the study saw neurons extending from the PVT to the central amygdala.
The MRI scans showed that the right amygdala was on average 80% larger in the donors than in the control group.
The amygdala is decisive for the emotional memory enhancement effect.
Jonathan Freeman, from New York University's Department of Psychology, said that the findings provide evidence that the amygdala's processing of social cues in the absence of awareness may be more extensive than previously understood and the amygdala is able to assess how trustworthy another person's face appears without it being consciously perceived.
Perhaps amygdala response to contours will vary depending on the context.