Final answer:
The amygdala and the hippocampus are influential in the presence of emotional behavior. The amygdala regulates fear and aggression, while the hippocampus is involved in emotional processing and memory consolidation.
Step-by-step explanation:
The limbic system, which includes the amygdala and the hippocampus, is influential in the presence of emotional behavior. The amygdala plays a part in regulating emotions such as fear and aggression, while the hippocampus is involved in emotional processing and memory consolidation. Both structures have been implicated in mood and anxiety disorders.
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