PSY 607 Lecture Notes - Lecture 5: Vacuum Cleaner, Chlorpromazine, Reuptake
17 Apr 2016
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Very intense compulsive seeking behaviour of rats after electric current given by olds and milner. Dopamine system has a role in motivation and seeking out drugs. The wanting aspect of addiction rather then the liking aspect of drugs. *electrical model is similar to cocaine more and more wanted/needed positive feedback. 100 billion neurons in the brain = vast but finite supply of nerve cells that are pruned over time. Growth by making new connections between cells with greater processing capacity than individual cells. Cell body = soma decision is made here whether the signal/pulse (ap) will be sent forward or not. Axon length cable that is insulated by myelin. Terminal buttons = terminus where the nts reside. Lock and key model for binding the nt to the receptor site (specific correspondence between them) *the signal that is conveyed is the sum of all the individual receptor site stimulations.
