Cocaine and other stimulants produce increased arousal. However, a few hours later the person feels somewhat depressed and lacking in energy. Explain why, with reference to neurons
What will be an ideal response?
Cocaine blocks reentry of dopamine and other neurotransmitters into the presynaptic neuron. The temporary effect is increased availability of the neurotransmitters in the synapse, leading to arousal. However, because the neurotransmitters do not reenter the presynaptic neuron, they wash away faster than the neuron can replace them. Therefore, a few hours later, the synapse receives less than the usual amount of these transmitters.
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John is a first year college student at a local university. He was diagnosed with a condition that involves an irrational fear of being publicly humiliated or embarrassed. John was most likely diagnosed with: (Answer)
A. generalized anxiety disorder. B. manic depression. C. homichlophobia. D. kathisophobia. E. social phobia.
How does the structure of the personality emerge, according to Freud?
What will be an ideal response?
According to the U.S. police, ________ is currently the most dangerous street drug in the United States.
A. ecstasy B. crack cocaine C. methamphetamine D. phenobarbital
The use of a placebo is typically used to
a) Rule out threats to internal validity b) Test for ethical issues c) Check for the impact of contact d) Enable everyone to eventually receive the treatment