GenPsychBiologicalPart1

GenPsychBiologicalPart1 - Lecture Outline Nervous system...

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Lecture Outline Nervous system cells. Nerve potentials. The autonomic nervous system. Overview of the brain. The hindbrain, midbrain, and subcortical forebrain.
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The “Hard” Problem We now have amassed a large body of knowledge about the brain. We still don’t know, however, what an explanation of how conscious experience emerges from the structure and activity of the brain would be like. Will it emerge from psychology, neuroscience, quantum physics, or some other (possibly new) area of inquiry?
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Neurons Neurons are cells that transfer information within the nervous system. There are an estimated 10 billion neurons in the brain. Three classes of neurons: Sensory : Motor : Interneurons :
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Glia Glia support the neurons of the brain. There are about 10 times as many glia as neurons. A glial cell is only about 1/10 the size of a neuron.
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Components of the Neuron: Functions Dendrites : receive information from other neurons. Cell body : creates transmitter molecules. Axon Myelin insulates the nerve cell, speeds up conduction of nerve messages. Terminal buttons of the axon release transmitter.
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The membrane of the neuron separates charges. – At rest
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GenPsychBiologicalPart1 - Lecture Outline Nervous system...

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