Beh225_appendix_c-Do - Axia College Material Appendix C Brain Response of Behavior Part I The communication process of neurons in the brain Nerve

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Axia College Material Appendix C Brain Response of Behavior Part I The communication process of neurons in the brain. Nerve impulses start with a transfers between neurons which relay chemical messages. These are communicated using electrochemical processes. These chemical messages pass through the axon, and are then transferred and sent on to the next neuron. The Synapse is what triggers the impulse to begin transmitting the messages from cell to cell. The chemical message must pass through another portion to the pre-synaptic neuron on its way to the post synaptic neuron. Pouches that are considered synaptic vesicles release the chemicals and enter the post synaptic dendrite on its way into the next cell. Once they are received they act like a key that has been placed into the lock mechanism. When it comes to neuron transmitters, there are thousands of communicators. There are several that can help a human or hinder a human. If there is not enough dopamine, it will inhibit the use of muscles as well as cause voluntary movements. Individuals, who have less dopamine, may come down with mental illnesses, such as perkiness disease. Five common neurotransmitters and their effects on behavior. Acetylcholine - is a neurotransmitter that has many function it is responsible for most of the stimulation and control over the muscles like the muscles of the gastro-intestinal system it also has an effect on arousal, attention, memory, motivation and movement. BEH 225
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Dopamine - is a neurotransmitter that inhabits the nerve impulse in motor neurons, meaning that when it finds its way to its receptor sites, it does not allow the tendency of that neuron to fire. It effects behavior and emotions including pressure. Drugs increase the levels of dopamine, as does nicotine, so if it feels good dopamine is probably involved . Some of the most commonly used drugs that stimulate this area are cocaine, opium, heroin, and alcohol. But you need both
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This note was uploaded on 12/13/2011 for the course PSYCHOLOGY BEH/225 taught by Professor Marvel during the Spring '11 term at University of Phoenix.

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Beh225_appendix_c-Do - Axia College Material Appendix C Brain Response of Behavior Part I The communication process of neurons in the brain Nerve

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