Read and discuss an abstract regarding the history and use of heroin, its affect on the nervous system.
Discuss mood and mood disorders, that mood is an emotional state and not a specific emotion.
Differentiate between tolerance and addiction dependence.
Introduce depression, its affects, features, and feelings.
Anhedonia is discussed as being a key factor in depression diagnoses.
Chemical imbalances of Serotonin, Dopamine, and Norepinephrine is seen to contribute to depression. Treatment with selective neurotransmitter re-uptake inhibitors discussed, along with the physiology and pharmacology of action.