Question 1

Cassandra and her boyfriend, Curtis, have been kissing intensely, which has produced an erection in Curtis and vaginal lubrication in Cassandra. As they continue, they feel a build-up of sexual tension and feel that orgasm may occur if they keep going. What phase in the sexual response cycle would this couple be in?

Accepted Answer

The couple is in the plateau phase, which is characterized by the intensification of arousal that precedes orgasm. During this phase, physical changes initiated in the excitement phase continue to escalate, including increased heart rate, muscle tension, and blood flow to the genitals, leading to the build-up of sexual tension described.

Question 2

Researchers estimate that the mortality rate for anorexia nervosa is roughly:

Accepted Answer

The mortality rate for anorexia nervosa is estimated to be 5 percent to 10 percent. This is a relatively high mortality rate compared to other mental illnesses.

Question 3

One theory about homosexuality suggests that children who feel different from their same-sex peers will start to be attracted to them because of this difference. Which theory is this?

Accepted Answer

Bem's Exotic-becomes-erotic theory suggests that children who feel different from their same-sex peers will start to be attracted to them because of this difference.

Question 4

Prenatal exposure to which hormone has been associated with sexual orientation?

Accepted Answer

Studies have linked higher prenatal exposure to testosterone with an increased likelihood of a male child developing a homosexual orientation or a female child developing a bisexual orientation.

Question 5

Which of the following individuals has the highest likelihood of a homosexual orientation, based on prenatal factors for brain organization?

Accepted Answer

According to research on prenatal factors for brain organization, having a lot of older brothers increases the likelihood of a homosexual orientation in males. This is known as the fraternal birth order effect, and it is believed to be related to the mother's immune response to male fetuses, which may affect brain development. The other factors listed (being an oldest or only child, having older sisters, having a lot of younger brothers) do not have a significant association with homosexual orientation.

Question 6

Which phase of the sexual response cycle is predominantly associated with feelings of well-being and relaxation?

Accepted Answer

The resolution phase of the sexual response cycle is predominantly associated with feelings of well-being and relaxation. During this phase, the body returns to its normal state and the individual may feel a sense of calm or even sleepiness.

Question 7

Which evidence suggests that eating disorders are influenced by cultural factors?

Accepted Answer

Research has shown that eating disorders are more prevalent in Western cultures and that exposure to Western media can increase the risk of developing an eating disorder. This suggests that cultural factors play a significant role in the development of eating disorders. Choices A, B, and C are incorrect as they do not specifically relate to cultural influences on eating disorders.

Question 8

Recent research has reported that _______________ is correlated with sexual desire and arousal, and it is also associated with our sense of reward and pleasure.

Accepted Answer

Dopamine is a neurotransmitter that plays a role in sexual desire and arousal as well as our sense of reward and pleasure. It is released in response to sexual stimuli and can enhance the experience of sexual pleasure.

Question 9

Which of the following is associated with frequent and consistent orgasms?

Accepted Answer

Orgasms are not solely physical, but also influenced by emotional factors. Being in a mutually loving relationship can foster feelings of intimacy and trust, which may enhance sexual pleasure and lead to more frequent and consistent orgasms. Low levels of estrogen can lead to decreased libido and sexual dysfunction, while high levels of serotonin can actually decrease sexual desire and make it more difficult to achieve orgasm. Age is not necessarily an indicator of frequency or consistency of orgasms.

Question 10

The concordance rate for homosexuality among identical twins is ________ than the concordance rate among fraternal twins. This evidence suggests that biology plays _________ role in sexual orientation.

Accepted Answer

Studies have consistently shown that the concordance rate for homosexuality is higher among identical twins (around 50-60%) compared to fraternal twins (around 20-25%). This suggests that genetics plays a strong role in sexual orientation.

Question 11

Jenny has an intense interest in food but eats sparingly and with disgust. She has an intense fear of becoming obese, and even though she looks emaciated, she still claims she "feels fat". She is most likely suffering from

Accepted Answer

Jenny's fear of becoming obese and disgust towards food, as well as feeling fat despite being emaciated, are all common symptoms of anorexia nervosa. Hormone under secretion and leptin reduction may be factors in some cases of eating disorders, but they are not the primary diagnosis. Bulimia involves binge eating and purging behaviors, which are not mentioned in the scenario provided.

Question 12

What is the average age of first intercourse for Canadians?

Accepted Answer

According to a 2018 Statistics Canada report, the average age of first intercourse for Canadians is 16.5 years old.

Question 13

The term used to indicate people's wish or craving for sexual activity is

Accepted Answer

The term "libido" specifically refers to a person's sexual desire or drive.

Question 14

The phase of the sexual response cycle in which people experience sexual pleasure and notice physiological changes associated with it is called

Accepted Answer

The excitement phase is the phase of the sexual response cycle in which people experience sexual pleasure and notice physiological changes associated with it, such as an increase in heart rate and blood pressure. This phase typically occurs after sexual desire has been aroused and before orgasm.

Question 15

Based on variations in low or high levels of the neurotransmitter serotonin, researchers have discovered an interesting link between levels of sexual desire and

Accepted Answer

The answer of Based on variations in low or high...

Question 16

Which of the following statements is true about sex differences in desire?

Accepted Answer

Research generally shows that men report experiencing sexual arousal more frequently and intensely than women, which aligns with the statement in option A.

Question 17

Brain imaging studies on sexuality have demonstrated that this brain region is activated when gay men smell the substance from male sweat.

Accepted Answer

The hypothalamus is responsible for regulating various bodily functions, including sexual behavior and arousal. Studies have shown that activation in the hypothalamus occurs when gay men are exposed to a pheromone found in male sweat.

Question 18

Which area of the brain becomes less active after the orgasm phase of the sexual response cycle?

Accepted Answer

The amygdala, which is involved in emotional processing, becomes less active after orgasm, contributing to the relaxation and reduced anxiety often experienced post-orgasm.

Question 19

Each of the following is a symptom of anorexia nervosa except

Accepted Answer

Recurrent episodes of binge eating followed by purging is actually a symptom of bulimia nervosa, not anorexia nervosa. The other three symptoms listed (intense fear of becoming obese, disturbance of body image, and refusal to maintain body weight) are all symptoms of anorexia nervosa.

Question 20

What area of the brain has been found to be larger in homosexual than in heterosexual men?

Accepted Answer

Research has shown that the corpus callosum, particularly the isthmus, is larger in homosexual men compared to heterosexual men.

Quiz 11: Emotion and Motivation