BEH225 wk2 Assignment Brain Response of Behavior Appendix C

BEH225 wk2 Assignment Brain Response of Behavior Appendix C...

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B r a i n R e s p o n s e o f B e h a v i o r | 1 Brain Response of Behavior BEH225 Week Two Assignment Appendix C Andrea M. Knepper Axia College May 16, 2010
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B r a i n R e s p o n s e o f B e h a v i o r | 2 Axia College Material Appendix C Brain Response of Behavior BEH 225
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B r a i n R e s p o n s e o f B e h a v i o r | 3 Part I Note: Parts II and III follow below, complete all three. 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 are the building blocks of the nervous system that transmit and receive messages through electrochemical impulses from one part of the body to another. First neurons receive the messages through the dendrites then next, the Neurons process the information through signals. There are two types of neuron processes: electrical and chemical. Only when a neuron receives enough signals from another neuron through the dendrites, the neuron will then undergo a rapid change known as the action potential or nerve impulses. Once the action potential has occurred, this chemical interaction of the neurons will travel down the axon to the end which is known as the terminal buttons. As the result this causes the neurotransmitters to release which sequentially transmit the message to the next neuron. BEH 225
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B r a i n R e s p o n s e o f B e h a v i o r | 4 The neurons do not directly connect or touch one or another which creates a gap called the synaptic cleft between the terminal buttons of a neuron and the dendrite of another neuron. The process of interaction between neurons and signal transmitting occurs in the area called synapse. The neuron that sends information is called presynaptic neuron and the neuron that receives information is called postsynaptic neuron. In the presynaptic neurons terminal button are sacs called synaptic vesicles which are filled with neurotransmitters. These neurotransmitters are the chemical messengers to the other neurons. The Neurotransmitters are then released when the action potential reaches the terminal button on the end of the axon, so they can across the synaptic cleft to attach to the receptors of the receiving postsynaptic neuron. Terminal buttons must contain neurotransmitters of a specific shape to fit the receptor sites. For example, LIVE!Psych (2002) states for this connection to fit properly it is similar to how a lock and key fit. Only in this case the message is properly transmitted. The nerve impulses fall in to one of two types of classifications: Excitatory or
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BEH225 wk2 Assignment Brain Response of Behavior Appendix C...

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