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Erschienen in:
1998 | OriginalPaper | Buchkapitel
Long-Term Changes (LTC) of Evoked Field Potentials in the Amygdala: A Model of Emotional Memory
verfasst von : Dan Yaniv, Gal Richter-Levin
Erschienen in: Neural Circuits and Networks
Verlag: Springer Berlin Heidelberg
Enthalten in: Professional Book Archive
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The identification of the amygdala as an essential neural substrate for fear conditioning has permitted neurophysiological examinations of synaptic processes in the amygdala that may mediate fear conditioning. We examined synaptic plasticity in the thalamoamygdala pathway known to mediate acoustic fear conditioning and the hippocampal-amygdala pathway, involved in contextual fear conditioning. Results indicate that theta burst high frequency stimulation can induce either LTP or LTD in both pathways. The mechanisms responsible for long-term changes (LTC) in the amygdala are to a great extent elusive and further work is planned to elucidate them.