Blockade of endogenous opioid neurotransmission enhances acquisition of conditioned fear in humans.
The endogenous opioid system is involved in fear learning in rodents, as opioid agonists attenuate and opioid antagonists facilitate the acquisition of conditioned fear. It has been suggested that an opioidergic signal, which is engaged through conditioning and acts inhibitory on unconditioned stimu...
| Main Authors: | , , , , |
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| Formato: | Journal article |
| Idioma: | English |
| Publicado: |
2008
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