Chapter 3 for posting

Chapter 3 for posting - The Biology of Mind and Behavior l...

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Unformatted text preview: The Biology of Mind and Behavior l The neuron and its parts l Drugs and their actions l The Brain and its parts The Neuron l The basic unit of the nervous system Receives signals from neurons or sensory organs Processes information Sends signals to other neurons, muscles, or organs l The brain contains one hundred billion neurons The Neuron l The basic unit of the nervous system Receives signals from neurons or sense organs Processes signals Sends signals to other neurons, muscles, or organs l The brain contains 100 billion neurons The Neuron l Sensory neuron l Motor neuron l Interneuron l Brain circuit: A set of neurons that affect one another The Neuron: Structure Neural Impulses l Resting potential More positively charged ions outside than inside l Action potential: Firing Threshold exceeded Flow of ions through channels in membrane All-or-none law l Myelin Acts as an insulator Allows signal to travel more efficiently Multiple sclerosis (MS): deteriorated myelin Demo: How Fast Are Neurons?Demo: How Fast Are Neurons?...
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Chapter 3 for posting - The Biology of Mind and Behavior l...

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