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Amygdala




Location:
  • The amygdala is placed near the hippocampus and the hypothalamus.
  • The amygdalae are a set of subcortical nuclei.
  • Due to their function, the amygdalae are considered part of the limbic system.

Function:
  • The amygdalae are essential to the process of forming and storing memories of emotional events.
  • Amygdalae play a large role in fear responses. They usually are associated with freezing with fear, rapid heartbeat, and an increased heart rate.
  • It has been proven by experiments with mice´╗┐ that the amygdala also affects the capability of storing long-term memories.
  • The amygdala can receive information from sensory inputs, allowing it to send messages to the rest of the brain. It can also send messages to release various hormones, such as epinephrine.
external image fear.gif
Illnesses:
  • Although the research is still not complete, the amydalae show strong signs of being an important factor in post-traumatic stress disorder.
  • Research may be able to link the amygdalae to schizophrenia as well.

Further Learning: