Results 221 to 230 of about 58,666 (254)
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Lateral amygdala unit activity: II. Habituating and non-habituating neurons
Electroencephalography and Clinical Neurophysiology, 1974Abstract Unit activity was recorded from the lateral amygdala in immobilized cats. The units were recorded for prolonged periods during which habituation procedures were applied (somatic, auditory and visual stimuli were used); the inter-trial interval was randomized with a mean of 13 sec ∓ 7 sec; the ECoG and the arterial blood pressure were also ...
Y, Ben-Ari, G, Le Gal la Salle
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Fear conditioning is associated with synaptogenesis in the lateral amygdala
Synapse, 2010AbstractFear conditioning in the rat typically involves pairing a conditioned stimulus (tone) with an aversive unconditioned stimulus (foot shock) which elicits a freeze response. Although the circuitry that underlies this form of learning is well defined, potential synaptic changes associated with this form of learning have not been fully investigated.
L, Dalzell +5 more
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Muscarinic control of graded persistent activity in lateral amygdala neurons
European Journal of Neuroscience, 2006AbstractThe cholinergic system is crucially involved in several cognitive processes including attention, learning and memory. Muscarinic actions have profound effects on the intrinsic firing pattern of neurons. In principal neurons of the entorhinal cortex (EC), muscarinic receptors activate an intrinsic cation current that causes multiple self ...
Alexei V, Egorov +2 more
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Fear renewal requires nitric oxide signaling in the lateral amygdala
Biochemical and Biophysical Research Communications, 2020Fear renewal is defined as return of the conditioned fear responses after extinction when a conditioned stimulus (CS) is given outside of the extinction context. Previously, we have suggested that extinction induces S-nitrosylation of GluA1 in the lateral amygdala (LA), and that the extinction-induced S-nitrosylation of GluA1 lowers the threshold of ...
Sukwoon Song +3 more
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Localization and connectivity of the lateral amygdala in anuran amphibians
Journal of Comparative Neurology, 2004AbstractOn the basis of chemoarchitecture and gene expression patterns in the amphibian amygdaloid complex, new subdivisions have been proposed and compared with their counterparts in amniotes. Thus, a portion of the ventral pallium of anurans has been tentatively named “lateral amygdala” (LA) and compared with the basolateral complex of mammals.
Nerea, Moreno, Agustín, González
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Physiological Properties of Central Medial and Central Lateral Amygdala Neurons
Journal of Neurophysiology, 1999Mounting evidence implicates the central (CE) nucleus of the amygdala in the mediation of classically conditioned fear responses. However, little data are available regarding the intrinsic membrane properties of CE amygdala neurons. Here, we characterized the physiological properties of CE medial (CEM) and CE lateral (CEL) amygdala neurons using whole ...
M, Martina, S, Royer, D, Paré
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Parvalbumin interneurons constrain the size of the lateral amygdala engram
Neurobiology of Learning and Memory, 2016Memories are thought to be represented by discrete physiological changes in the brain, collectively referred to as an engram, that allow patterns of activity present during learning to be reactivated in the future. During the formation of a conditioned fear memory, a subset of principal (excitatory) neurons in the lateral amygdala (LA) are allocated to
Dano J, Morrison +5 more
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Lateral entorhinal cortex - amygdala microcircuit
2014Emotionen sind essentiell um richtig auf Ereignisse zu reagieren. Wir wollten mehr über Hirnstrukturen lernen, die eine wichtige Rolle in der Verarbeitung von räumlichen Komponenten in einem emotionalen Kontext spielen. Der Entorhinale Kortex (EC) könnte dabei maßgeblich involviert sein.
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Morphological sex differences and laterality in the prepubertal medial amygdala
Journal of Comparative Neurology, 2007AbstractThe medial amygdala (MeA) is crucial in the expression of sex‐specific social behaviors. In adult rats the regional volume of the MeA posterodorsal subnucleus (MeApd) is ≈50% larger in males than in females. The MeApd is also sexually dimorphic in prepubertal rats.
Bradley M, Cooke +2 more
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GABAergic Interneurons in the Mouse Lateral Amygdala: A Classification Study
Journal of Neurophysiology, 2010Whole cell patch-clamp recordings were performed in GABAergic interneurons labeled by green fluorescent protein (GFP) in the lateral amygdala (LA) in vitro from glutamic acid decarboxylase 67 (GAD67)-GFP mice. Neurons were characterized by electrotonic and electrogenic parameters. Cytoplasm was collected from individual neurons, and single-cell RT-PCR
Ludmila, Sosulina +2 more
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