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GENDER DIFFERENCE IN LIBIDO PROF IHAB YOUNIS BANHA UNIVERSITY.

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Presentation on theme: "GENDER DIFFERENCE IN LIBIDO PROF IHAB YOUNIS BANHA UNIVERSITY."— Presentation transcript:

1 GENDER DIFFERENCE IN LIBIDO PROF IHAB YOUNIS BANHA UNIVERSITY

2 أشكر الطبيبة / شيماء غرابة على جمع المادة العلمية لهذه المحاضرة

3 Why Hijab was only imposed on women?

4 Why men were allowed to marry 4 women?

5 Quantitative Aspects

6 Desired Frequency of Sex

7 Among spouses Husbands 60% …..…….………. Wives 32% would prefer to have sex more often (Brown and Auerback,1981) Among 25-year-olds, “Reluctant virgins” Men 28% Women 2% (McCabe,1987) 11%of the gay ………….. 1% of the lesbians were still in the category of having highly frequent sex after 10 years together (Blumstein and Schwartz, 1983)

8 Gender Differences In Masturbation

9 Masturbating at least once per week Men 45% of men ………… Women 15% (Jones and Barlow,1990) Never masturbated Boys 11% …………………….. Girls 39% (Arafat and Cotton,1974)

10 Teenagers who masturbated during the past year Boys 80% …………………….. Girls 25% Frequency Boys 5 times/month …….Girls 1/month (Sigusch and Schmidt,1973) Past the age of 60, Men masturbate more than women (Bergström-Walan & Nielsen, 1990)

11 Desired Number of Sex Partners

12 How many sex partners would you like to have over the rest of your life? Men 64 ………………………. Women 2.7 (Miller and Fishkin,1997) Unfaithful spouses who had >3 extramarital partners Husbands 26% Wives 5% (Spanier and Margolis,1983)

13 Thoughts, Fantasies& Spontaneous Arousal

14 Frequency of sexual fantasy among182 female and 125 male undergraduates Men 1/ day…………….…. Women1/week (Ellis and Symons,1990) Among 3,432 men and women who said they thought about sex every day or several times a day Men 54% ………………………Women 19% (Laumann et al., 1994)

15 Adolescents who were having sexual fantasies "many times a day" Boys 45% ………………………..Girls 6% “Once a week" Boys 8% Girls 35% (Knoth et al.,1988)

16 Gender Differences of Willingness to Forego Sex

17 Priests and nuns who took their vows of celibacy but are still sexually active Males 62% …………………Females 49% Those who had more than five partners since taking their vows Males 24% … ……..Females 3% (Murphy,1992)

18 The Effect of Age

19 In absence of a partner men and women hardly have any sexual activity In presence of a partner after the age of seventy: (Beutel et al., 2007) 50% 33%

20 Quantitative Aspects

21 Attractiveness as Correlated with Facial Features

22 Women perceive men with masculine face features as dishonest, uncooperative, more interested in short-term than long-term relationships, and even as ‘bad parents’ (Boothroyd et al., 2007) Men prefer women having typically female characteristics Vs typically male characteristics (Weeden & Sabini, 2005) MF FM

23 Attractiveness as Correlated with Body Measures

24 In developed countries - Men prefered women relatively narrow waist and big hips - Women are attracted to men with larger chests in relation to waists and BMIs in the high end of the “normal” (Weeden & Sabini, 2005)

25 In remote villages of Peru men rated “overweight” females with a higher WHR (0.9) as most healthy and attractive!! (Yu and Shepard 1998) In the Hadza Village in Tanzania lengthening of the penis images by 43% was associated with significantly lower scores than those given to the unaltered images (Marlowe et al.,2005)

26 Chinese women showed a clear preference for men lacking hair on the chest In UK the opposite was found (Barnaby et al., 2007) When the normal size of the non-erect penis was changed in images, extremes of size were rated as significantly less attractive (Potts & Short 1999)

27 Gender Differences in Viewing Sexual Stimuli

28 Men are more psychosexually responsive to visual erotic material than are women (Youn,2006) Genital changes measuring - Men show highest genital response to their preferred sex - Women show comparable genital arousal independent of the sex of the actors (Chivers et al., 2004)

29 Men show a preference for pictures depicting other males receiving oral sex and in a dominant intercourse position and vice versa for females (Janssen et al., 2003) Also men have more interest in close-up images of the genitals than would women (Rupp & Wallen, 2007)

30 Gender Differences in the Content of Sexual Fantasy

31 Preference of sexual fantasies - Men prefer to be providers - Women prefer to be recepients (Mednick,1977) A qualitative analysis - men's fantasies contained more explicit anatomic detail - Women's sexual fantasies contained greater reference to affection (Barclay,1973)

32 Dominance fantasies (forcing someone to have sex) Men 13% …………………….. women 3% (Hunt,1974) Group sex : Men 31 % Women 15% (Wilson,1987)

33 Sex Differences in Neural Response to Sexual Stimuli

34 Coronal sections from an fMRI study comparing brain responses of men and women to sexually arousing photographs (Hamann et al., 2004)

35 Control state Middle circle=Hypothalam. Lateral circles=amygdala Men more active areas while viewing sexually arousing stimuli Women A lack of significant activity in the bilateral amygdala & hypo- thalamus in response to sexually arousing photographs Brighter colors on the color bar indicate larger effects

36 To Sum up

37 LIBIDO SEEMS TO BE HIGHER IN MEN THAN IN WOMEN IN QUANTITY AND QUALITY

38


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