All of the following are pieces of evidence that support the maternal immune hypothesis as a part of the cause of same-sex attraction in males EXCEPT

a. Anti-H-Y antibodies in utero have been shown to disrupt brain development, but not physical development.
b. H-Y antigens cannot cross the blood-brain barrier, thus increasing their concentration in the fetal brain.
c. Cytology research shows that the maternal immune response is greater to cells from male than female children.
d. Newborn boys with older brothers tend to have a lower birth weight than boys with older sisters.


Answer: b: H-Y antigens cannot cross the blood-brain barrier thus increasing their concentration in the fetal brain.

Psychology

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Drug use can be quite rewarding, and therefore is maintained by

a. classical conditioning. b. observational learning. c. vicarious learning. d. operant conditioning.

Psychology

Research supports that women with higher levels of oxytocin in their bodies:

a. bond better with their babies. b. engaged in less affiliative and nurturing behaviors. c. decreases their relaxation. d. makes them spend less time with their friends to ensure an optimal coping response.

Psychology

Punishment is rarely used as the sole type of behavioral intervention because the use of punishment:

a. actually causes the undesirable behavior to increase b. can damage the working relationship between the therapist and the client c. usually suppresses adaptive behaviors as well as maladaptive behaviors d. can produce severe depression in individuals who already have psychological disorders

Psychology

Jennifer, who has an intense fear of getting fat, eats so little that her weight has dropped from 140 pounds to 95 pounds in less than a year. She is most likely suffering from

a. anorexia nervosa b. narcissism c. bulimia nervosa d. compulsive overeating

Psychology