When her baby begins to cry, Brenda can quickly soothe him by picking him up, holding him, and stroking his head. Based on research with animals, it is likely that Brenda's touch has a soothing effect, in part,
because it leads to the release of ___________ in the baby's brain.
a. morphine
b. endorphins
c. leptin
d. vasopressin
B
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The high rate of growth in the limbic system in early adolescence makes adolescents particularly susceptible to
Which statement best describes children's experience and expression of pain? a. Because their nervous systems are incomplete, infants do not fully experience pain
b. Girls have a lower pain threshold than boys. c. Children have a higher pain threshold than adults. d. Children and adults experience pain similarly.
Operationalizing variables helps to make constructs measurable.
Answer the following statement true (T) or false (F)
Commitment refers to
a. feelings of connectedness and affection for another person. b. deep emotional and/or sexual feelings for another person. c. the determination to stay in a long-term relationship with another person. d. the nearly exclusive attention lovers give to one another.