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Unformatted text preview: Psych 100.5 – Lecture 4 Fall 09 - Wede Lecture 4 – Neurons and Neurotransmitters Why does everyone love Prozac? Corresponding reading: Module 4 Overview Neural Communication Neuron structure Communication between neurons Drugs The nervous system Peripheral nervous system Central nervous system Neuroscience and Behavior-- Neurons • The body’s information system is built from billions of interconnected cells called neurons. • Estimates of 100 billion (w/ 100 trillion connections between the them) Parts of a neuron • Dendrite – • Soma - Life support center of the neuron. • Axon - 1 Psych 100.5 – Lecture 4 Fall 09 - Wede • Terminal Branches of axon - Branched ending of axons. Transmitting messages to other neurons. Action Potential • A brief electrical charge that travels down an axon • Generated by the movement of positively charged atoms in and out of channels in the axon’s...
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- system. Central Nervous, Systemo Sympathetic Nervous, nervous system Peripheral