BEH225 Week 2 Brain Response - APPENDIX C

BEH225 Week 2 Brain Response - APPENDIX C - Axia College...

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Axia College Material Appendix C Brain Response of Behavior BEH 225
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Part I Run Multimedias 2.3 and 2.4 o Go to the Web site www.prenhall.com/morris . o Click text: Psychology: An Introduction (12 th ed.) o Click “2” on the select a chapter tool bar. o Click Live!Psych on the left hand menu. o Select 2.3 and 2.4. Write a 350- to 700-word response to the following: Explain the communication process of neurons in the brain. List some common neurotransmitters and describe their effect on behavior. Neurons process information through signals or nerve impulses often referred to as action potentials, and the action is carried out through two types of processes: electrical and chemical (synapse). A nerve impulse is the electrical signal attained from the chemical signal the neuron receives from a neuron through its dendrites. The chemical interaction between neurons transpires at the end of the axon called terminal buttons. At the result, neurotransmitters are released which in turn transmit the message to the next neuron. The process of interaction between neurons and signal transmitting occurs in the area. These interactions are termed “synapses”. Since neurons do not converge, there exists an area known as the synaptic cleft. The synaptic cleft is where and how the signals traverse - reaching the dendrite of the next neuron. A neuron that receives information is defined as a postsynaptic neuron. The neuron that sends information is termed a presynaptic neuron. BEH 225
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This returns us to the neurotransmitters that are released in the axon by the sacs named synaptic vesicles. Synaptic vesicles are situated at the end of the axon; labeled the presynaptic terminal. Synaptic vesicles, often referred to as neurotransmitter vesicles, store a variety of neurotransmitters that function as chemical messengers to next neurons. Neurotransmitters are released when a nerve impulse reaches the end of the axon, and once they come across the synaptic cleft, where they attach to the receptors of the receiving neuron , the postsynaptic neuron. Terminal buttons must contain neurotransmitters of a certain shape to fit the receptor sites. Only in this case the message is properly transmitted. Each neuron produces only one kind of neurotransmitter.
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This note was uploaded on 12/06/2010 for the course BEH225 BEH 225 taught by Professor Caroltripp during the Fall '10 term at University of Phoenix.

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BEH225 Week 2 Brain Response - APPENDIX C - Axia College...

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