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Chemical Changes In The Brain

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Chemical Changes In The Brain
Within the brain, the main structures that determine mood and behavior are the amygdala, the thalamus, and the hippocampus. The amygdala is associated with emotions such as anger, pleasure, sorrow, fear, and sexual arousal. The thalamus is the region of the brain responsible for speech, behavior and movement. The hippocampus helps internalize certain events and creates long-term memory. Recent evidence identifies certain alterations in these areas of the brain in people suffering from depression (Coltrera, Jungle, & Leinwand 2008, p. 6).
Structural changes in the brain may also be accompanied by chemical imbalances from a dysfunction of one or more neurotransmitters. Neurotransmitters are chemicals in the brain that transmit information from
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