PGS 101, Lec 3 (Biological Psychology)

PGS 101, Lec 3 (Biological Psychology) - Biological Bases...

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Biological Bases of Behavior
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Franz Gall Phrenology – studying shape of skull
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Nervous Tissue Glia cells – provide structure, insulation Neurons – Receive, integrate, transmit info
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Page 81 – learn the structures Figure 3.1 myelin sheath - over axon axon – connects neurons dendrites terminal buttons – connect to dendrites soma – cell body
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Neurons chilling out Resting potential, about -70mV Neurons in action Action potential: more positive chare causes firing Travels down axon Absolute refractory period
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Postsynaptic potentials: voltage changes at receptor cite Excitatory (more +) more likely to fire Inhibitory (more - ) less likely to fire
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Putting on the Brakes Reuptake – Neurotransmitters (NTs) are sponged up Enzyme activation – NTs are broken down
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And an example of a problem they are associated with: Dopamine – Schizophrenia = too much Seratonin - Depression = not enough Norepinephrine –
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This note was uploaded on 03/16/2010 for the course PGS 11302 taught by Professor Mae during the Spring '10 term at University of Arizona- Tucson.

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PGS 101, Lec 3 (Biological Psychology) - Biological Bases...

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