3 - Biological Bases of Behavior

3 - Biological Bases of Behavior - Biological Bases of...

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Unformatted text preview: Biological Bases of Behavior Heredity Hormones Nerves Brain Terminal Buttons Basic Structures: Neurons Basic nerve cells Dendrites Soma (Cell body) Axon Myelin sheath Terminal buttons (axon terminus) Synapse Neuron Firing Resting potential Negative charge inside axon Graded potential Inhibitory: hyperpolarizes Excitatory: depolarizes Action potential All or None + + +- + + + + + + + + + + + +-------------- + + + + + + + + + + + + + + +--------------- Resting State Synaptic Transmission Neurotransmitters Chemicals used in brain to transmit signals from one neuron to another Stored in synaptic vesicles in terminal buttons of axon 1. Produced 2. Released 3. Connect to receptors 4. Reuptake Neurotransmitters Acetylcholine Voluntary muscles Dopamine Voluntary movement Parkinsons Disease Schizophrenia Norepinephrine Activating Endorphins Increase pleasure; mask pain Neurotransmitters...
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This note was uploaded on 02/06/2011 for the course PSYC 100 taught by Professor Pilafova during the Spring '09 term at George Mason.

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3 - Biological Bases of Behavior - Biological Bases of...

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