Amygdala (Mepd): A Case Study
An important part in the brain involved in memory, decision-making, and emotional responses is called the medial amygdala (MePD). The MePD is located within the temporal lobes of the brain and plays a major role in the life of complex vertebrates. MePD receives information pertaining to reproductive behavior from the hypothalamic portion of the brain (Johnson et al., 2008). The MePD is numerous in neurons and astrocytes. Astrocytes are neuroglial cells with many branches, or processes, that originate in the central nervous system. These neuroglial cells are believed to be involved in carrying nutrients and clearing neurotransmitters from within the synaptic cleft. Astrocytes are largely sex differentiated in size, and which hemisphere of the brain they are located in seems to have an influence on the complexity of the astrocyte.
The amygdala controls many social behaviors including fear, anxiety, and social interactions (Johnson et al., 2008). MePD is found to be largely sex differentiated in rats. Adult male rats have a much larger MePD volume than adult female rats (Pfau et al., 2016).
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