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Drugs affect neural conduction and synaptic transmission
The majority of drugs that act on the nervous system to produce changes in behavior do so by altering the complex system of synaptic transmission. Drugs can alter:
- Presynaptically
- Postsynaptically
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Introduction to Psychology @ OpenStax Course
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Synaptic Transmission Process
Drugs affect neural conduction and synaptic transmission
Visual Representation of Synaptic Transmission
A newly developed medication is found to prolong the effects of a specific neurotransmitter. After being released, the neurotransmitter molecules remain active in the space between two neurons for much longer than usual, continuously stimulating the receiving neuron. Which part of the communication process is most likely being inhibited by this medication?
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Drugs altering presynaptic events
Drugs altering postsynaptic events
A new medication is found to alleviate symptoms of a particular disorder by increasing the amount of a specific neurotransmitter available in the synaptic cleft, thereby prolonging its effect. Which of the following is the most plausible mechanism of action for this drug?
A new medication is observed to significantly amplify the signal between two communicating nerve cells, resulting in a stronger and more prolonged response in the receiving cell. Based on the general principles of how substances can affect this communication process, which of the following potential actions is LEAST likely to be the mechanism of this medication?