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Synaptic Plasticity, Engrams, and Network Oscillations in Amygdala Circuits for Storage and Retrieval of Emotional Memories

Neuron (Cambridge, Mass.), 2017-05, Vol.94 (4), p.731-743 [Peer Reviewed Journal]

2017 Elsevier Inc. ;Copyright © 2017 Elsevier Inc. All rights reserved. ;Copyright Elsevier Limited May 17, 2017 ;ISSN: 0896-6273 ;EISSN: 1097-4199 ;DOI: 10.1016/j.neuron.2017.03.022 ;PMID: 28521127

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Title:
Synaptic Plasticity, Engrams, and Network Oscillations in Amygdala Circuits for Storage and Retrieval of Emotional Memories
Author: Bocchio, Marco ; Nabavi, Sadegh ; Capogna, Marco
Subjects: Activation ; Amygdala ; Amygdala - physiology ; Animals ; Appetitive Behavior ; Association Learning - physiology ; Associative learning ; Associative memory ; Auditory pathways ; Axons ; Basolateral Nuclear Complex - physiology ; Brain Waves - physiology ; Cerebral Cortex - physiology ; Circuits ; Circular dichroism ; Cognitive ability ; Conditioning ; Conditioning (Psychology) - physiology ; Consolidation ; Defensive behavior ; Delta Rhythm - physiology ; Emotional behavior ; Emotions - physiology ; engrams ; Fear ; Fear - physiology ; Gamma Rhythm - physiology ; Genetics ; Hippocampus ; Human behavior ; Humans ; interneurons ; Long-term depression ; Long-term potentiation ; Long-Term Potentiation - physiology ; Memory ; Memory - physiology ; Mental disorders ; Mental Recall ; Motivation ; Nerve Net ; Neural Pathways ; Neuronal Plasticity - physiology ; Neurons ; Nuclei ; Oscillations ; Prefrontal cortex ; Primates ; Protocol (computers) ; Reinforcement ; Rodents ; Sensory stimuli ; Somatosensory cortex ; Stellar mass ; Stimulation ; Synapses ; synaptic plasticity ; Temporal lobe ; Thalamus - physiology ; Theta Rhythm - physiology ; Visual cortex ; Visual perception
Is Part Of: Neuron (Cambridge, Mass.), 2017-05, Vol.94 (4), p.731-743
Description: The neuronal circuits of the basolateral amygdala (BLA) are crucial for acquisition, consolidation, retrieval, and extinction of associative emotional memories. Synaptic plasticity in BLA neurons is essential for associative emotional learning and is a candidate mechanism through which subsets of BLA neurons (commonly termed “engram”) are recruited during learning and reactivated during memory retrieval. In parallel, synchronous oscillations in the theta and gamma bands between the BLA and interconnected structures have been shown to occur during consolidation and retrieval of emotional memories. Understanding how these cellular and network phenomena interact is vital to decipher the roles of emotional memory formation and storage in the healthy and pathological brain. Here, we review data on synaptic plasticity, engrams, and network oscillations in the rodent BLA. We explore mechanisms through which synaptic plasticity, engrams, and long-range synchrony might be interconnected. Bocchio et al. review how synaptic plasticity, engrams, and network oscillations in amygdala circuits contribute to the encoding of emotional memories. They explore mechanisms through which these cellular and network phenomena could interact.
Publisher: United States: Elsevier Inc
Language: English
Identifier: ISSN: 0896-6273
EISSN: 1097-4199
DOI: 10.1016/j.neuron.2017.03.022
PMID: 28521127
Source: Cell Press Free Archives
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Synaptic Plasticity, Engrams, and Network Oscillations in Amygdala Circuits for Storage and Retrieval of Emotional Memories

2017 Elsevier Inc. ;Copyright © 2017 Elsevier Inc. All rights reserved. ;Copyright Elsevier Limited May 17, 2017 ;ISSN: 0896-6273 ;EISSN: 1097-4199 ;DOI: 10.1016/j.neuron.2017.03.022 ;PMID: 28521127

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