(Latin, also langlacorpus amygdaloideum, singular langlaamygdala, from Greek (Greek language) langel????????, langgrc-Latnamygdal?, almond, tonsil, listed in the Grays Anatomy as the nucleus amygdal�) are almond-shaped groups of nuclei (nucleus (neuroanatomy)) located deep within the medial temporal lobes of the brain in complex vertebrates, including humans. Shown in research to perform a primary role in the processing and memory of emotional reactions (emotions), the amygdalae are considered part of the limbic system.cite journal author=Amunts K, Kedo O, Kindler M, Pieperhoff P, Mohlberg H, Shah N, Habel U, Schneider F, Zilles K title=Cytoarchitectonic mapping of the human amygdala, hippocampal region and entorhinal cortex: intersubject variability and probability maps journal=Anat Embryol (Berl) volume=210 issue=5-6 pages=343-52 year=2005 pmid=16208455 doi=10.1007/s00429-005-0025-5.