Whenever Tom Uses Cocaine He Experiences Intense Euphoria, Mental Alertness

question 169

Multiple Choice

Whenever Tom uses cocaine he experiences intense euphoria, mental alertness, and increased self-confidence. These psychological responses occur because:

• A)cocaine increases the amounts of dopamine, adenosine, and norepinephrine that is released into the synaptic gap between neurons.
• B)cocaine blocks the reuptake of dopamine, serotonin, and norepinephrine, which potentiates the effects of these neurotransmitters.
• C)there is an increase in the number of dopamine transporters when cocaine is used, and this speeds up the removal of dopamine from the synaptic gap.
• D)there is an increase in the number of dopamine and serotonin receptors when cocaine is used, which speeds up the absorption of these neurotransmitters.

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Definitions:

Confound Group

A group in an experiment that introduces variability to the outcome, making it difficult to determine the effect of the treatment.

Experimental Group

In an experiment, one or more treatment groups of participants that receive the manipulation of the independent variable being investigated.

Random Assignment

Placing research participants into the conditions of an experiment in such a way that each participant has an equal chance of being assigned to any level of the independent variable.

Random Sampling

A method of sampling in which each member of a population has an equal chance of being selected to represent the whole.