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.

Question

Quizplus · Accepted Answer

The disorganized attachment style developed in infancy only when mothers showed a low level of responsiveness toward their infants, which indicates a poor environment for developing attachment. This gene-environment interaction was specifically linked to the short version of the serotonin transporter gene, 5-HTTLPR. The other options (A, C, and D) are not directly related to this gene-environment interaction.

Recent Studies Found That a Disorganized Attachment Style Developed in Infancy