feb 5 - How do neurons transmit information? 1) Action...

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How do neurons transmit information? 1) Action potential -a neural impulse; a brief electrical charge that travels down an axon -genreated by the movement of positively charged atoms in and out of channels in the axon's membrane Effects of neurotransmitters Dopamine: influence movement, learning, attention, and emotion -excess activity at dopamine receptors linked to schizophrenia Serotonin -affect mood, hunger, sleep and arousal -Prozac and other antidepressants raise serotonin levels Endorphins -morphine within; natural, opiatelike neurotransmitters; linked to pain control and to pleasure; why not flood brain with artificial opiates?; when heroin or morphine enter system, brain stops producing natural opiates; when drug withdrawn- no opiates in body; agony until either natural or artifical return Nervous System -the body's speedy, electrochemical communication system; consists of all the nerve cells of the peripheral and central nervous systems Major Divisions of the Nervous System Central Nervous System (CNS)- the brain and spinal cord
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This note was uploaded on 04/20/2008 for the course PSYCH 101 taught by Professor Wessel-blaski during the Spring '08 term at Wisconsin Colleges.

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feb 5 - How do neurons transmit information? 1) Action...

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