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The Amygdala and Other Neuronal Groups with Relation to Emotions 

The Amygdala and Other Neuronal Groups with Relation to Emotions
Chapter:
The Amygdala and Other Neuronal Groups with Relation to Emotions
Author(s):

Per Brodal

DOI:
10.1093/med/9780190228958.003.0031
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date: 02 March 2021

Chapter 31 deals primarily with structures of special importance for emotions, motivation, and affective behavior. The discussion includes the cingulate gyrus, the septal nuclei, the amygdala, and neuronal groups in the basal forebrain. In addition, neocortical regions involved in emotional processing, notably parts of the prefrontal cortex and the insula, are discussed. The amygdala plays an important role in social behavior and in emotional learning and memory. Cerebral cortical influence of the autonomic nervous system is exerted mainly via the amygdala, the hippocampal formation, and the septal nuclei, which, in turn, influence the hypothalamus and brain stem nuclei. Extensive cortical areas show altered activity in relation to emotions. The insula, the cingulate gyrus, and the orbitofrontal cortex are also linked with emotions and their integration with cognitive processes. The basal forebrain (substantia innominata) is involved in regulation of attention, motivation, and memory.

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