Assume a Researcher Finds That Overuse of a Drug Reduces

question 65

Multiple Choice

Assume a researcher finds that overuse of a drug reduces the body's production of neurotransmitters. Thus, if an abuser of this drug stops taking the drug, withdrawal symptoms occur until the brain begins producing normal levels of neurotransmitters again. Such a finding would most directly support which view of the cause of substance use disorders?

• A) sociocultural
• B) biochemical
• C) opponent-process
• D) behavioral

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Definitions:

Long-Run Scale

Refers to the time period in which all factors of production and costs are variable, allowing companies to adjust all inputs in response to market conditions.

Short-Run

A period in which at least one input is fixed, limiting the firm's capacity to adjust to changes in demand or market conditions.

Positive Profits

Financial gains that are greater than zero, indicating a company's revenues exceed its costs and expenses.

Variable Costs

Costs that change in proportion to the activity or volume of business, such as materials and labor.