Why Study Biology - Tuesday January 16, 2007 Why Study...

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Tuesday January 16, 2007 Why Study Biology? Biological Psychology The branch of psychology concerned with the links between biology, behavior, and the environment Sub-fields of Biological Psychology o Behavioral neurosciences o Neuropsychology o Behavior genetics o Physiological psychology o Biopsychology Neurons and Behavior Our nervous system is made up of billions of neurons Specialized cells that create a communication system throughout the body Parts of Neurons Dendrite o The bushy, branching extensions of a neuron that receives messages and conduct impulses towards the cell body Axon o The extension of a neuron, ending in branching terminal fibers, through which the messages are sent to other neurons or to muscles or glands Myelin Sheath o A layer of fatty cells segmentally encasing the fibers of many neurons o Enables vastly greater transmission speed of neutral impulses Action Potential A neural impulses; a brief electrical charge that travels down an axon
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This note was uploaded on 04/23/2008 for the course PSY 315 taught by Professor Johndavis during the Winter '07 term at Michigan State University.

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Why Study Biology - Tuesday January 16, 2007 Why Study...

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