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Cited by 399

The DOI matches its Crossref record; 15 of the 15 references it cites were found in a registry or an index.

Amygdala Pain Mechanisms

Open access
Neugebauer, Volker·2015·Handbook of Experimental Pharmacology

Abstract

A limbic brain area the amygdala plays a key role in emotional responses and affective states and disorders such as learned fear, anxiety and depression. The amygdala has also emerged as an important brain center for the emotional-affective dimension of pain and for pain modulation. Hyperactivity in the laterocapsular division of the central nucleus of the amygdala (CeLC, also termed the “nociceptive amygdala”) accounts for pain-related emotional responses and anxiety-like behavior. Abnormally enhanced output from the CeLC is the consequence of an imbalance between excitatory and inhibitory mechanisms. Impaired inhibitory control mediated by a cluster of GABAergic interneurons in the intercalated cell masses (ITC) allows the development of glutamate- and neuropeptide-driven synaptic plasticity of excitatory inputs from the brainstem (parabrachial area) and from the lateral-basolateral amygdala network (LA-BLA, site of integration of polymodal sensory information). BLA hyperactivity also generates abnormally enhanced feedforward inhibition of principal cells in the medial prefrontal cortex (mPFC), a limbic cortical area that is strongly interconnected with the amygdala. Pain-related mPFC deactivation results in cognitive deficits and failure to engage cortically driven ITC-mediated inhibitory control of amygdala processing. Impaired cortical control allows the uncontrolled persistence of amygdala pain mechanisms.

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Crossref · 10.1007/978-3-662-46450-2_13

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Metadata

Authors
Neugebauer, V.
Venue
Handbook of Experimental Pharmacology
Published
2015
Volume
227
Pages
261-284
ISSN
  • 0171-2004 (ISSN-L)
  • 1865-0325
OpenAlex
W2409837131
Cited by
399
References
15
FWCI
122.23
Type
book chapter
Language
en
Open access
green

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