PSY 2301 Lecture 3: chapter4_1and2

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Information: electricity and neurons, electrical activity of a membrane, how neurons integrate information, into the nervous system and back out, studying the brain"s electrical activity. A flow of electrons from a body that contains a higher charge (more electrons) to a body that contains a lower charge (fewer electrons: negative pole. The source of electrons; higher charge: positive pole. Location to which electrons flow; lower charge. An electrical charge measured in volts; the ability to do work through the use of stored potential electrical energy: volt. A measure of a difference in electrical potential. Electrical current applied to a dissected nerve causes the muscle connected to the nerve to twitch; concluded that electricity flows along the nerve: electrical stimulation. Passing an electrical current from the tip of an electrode through brain tissue, resulting in changes in the electrical activity of the tissue. Electrical stimulation studies: fritsch and hitzig (mid-19th century)

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