How might a psychoneuroimmunologist explain the increased risk of catching the common cold during periods of prolonged stress?
a. Stress increases the number of natural killer cells, which attack the immune system.
b. Stress increases the number of white blood cells, making the body more susceptible to infection.
c. Telomeres are lengthened by stress, leaving cells more vulnerable to infection.
d. Stress disrupts normal chemical communication between the brain and the immune system.
A
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Drugs such as Viagra and Cialis help to achieve an erection by
a. increasing blood flow to the penis. b. restricting blood flow from the penis. c. increasing size of spongy cells within the penis. d. drawing blood into the penis.
A researcher declares, "We must look carefully at how adults of various ethnic identities differ in their parenting styles.". Her statement implies the importance of ____ for child development
a. longitudinal follow-up b. practice effects c. ideographic traits d. cultural context
In a group setting, one member could take advantage of the help that he/she receives from the other group members, thereby exploiting the reciprocity norm to his/her advantage. Some researchers believe that, instead, ________ evolved
a. gratitude b. diffusion of responsibility c. bystander effect d. volunteering
According to attachment theory, the comfort provided by a mother or a romantic partner that allows a person to go into the world and confidently explore his or her environment is known as a/an
A) exploratory reference. B) security blanket. C) center of operations. D) secure base.