Recent Studies Found That a Disorganized Attachment Style Developed in Infancy

question 91

Multiple Choice

Recent studies found that a disorganized attachment style developed in infancy only when infants had the short version of the serotonin transporter gene, 5-HTTLPR. This gene-environment interaction only occurred when

• A) the infants' other-consciousness developed poorly in the first six months after birth.
• B) mothers showed a low level of responsiveness toward their infants.
• C) maternal nutrition was deficient during the prenatal period.
• D) the infants were temperamentally inclined toward negative affectivity.

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Definitions:

Government Intervention

Actions taken by a government to affect the economy, which can include regulations, subsidies, tariffs, and direct provision of goods and services.

Marginal External Benefit

Increased benefit that accrues to other parties as a firm increases output by one unit.

Pollution Emissions

The release of pollutants into the environment, typically referring to harmful substances discharged from industries, vehicles, and other sources.

Marginal External Cost

The cost resulting from producing one additional unit of a good that is incurred by someone other than the producer.