The Genetic Basis for Sex Differences in Human Behaviour: Role of
... SGDP Centre, Box PO 82, Institute of Psychiatry, Denmark Hill, London SE5 and 2 St Catherine’s College, Oxford University, ...
... SGDP Centre, Box PO 82, Institute of Psychiatry, Denmark Hill, London SE5 and 2 St Catherine’s College, Oxford University, ...
Chapter 27
... Excitement is characterized by vasocongestion of genitals, myotonia, and increases in heart rate, blood pressure and pulmonary ventilation Initiated by many different erotic stimuli Erection of penis is due to parasympathetic triggering of nitric oxide (NO) secretion ...
... Excitement is characterized by vasocongestion of genitals, myotonia, and increases in heart rate, blood pressure and pulmonary ventilation Initiated by many different erotic stimuli Erection of penis is due to parasympathetic triggering of nitric oxide (NO) secretion ...
Nonverbal Cues in Communication and their Interpretation
... “Nonverbal communication plays an important role in how we make sense of one another’s behavior”- (Adler and Proctor, 2011, p. 188) Nonverbal communication is responsible for over 90% of communication and some scientists have argued that the majority of emotional impact is derived from verbal cues. ...
... “Nonverbal communication plays an important role in how we make sense of one another’s behavior”- (Adler and Proctor, 2011, p. 188) Nonverbal communication is responsible for over 90% of communication and some scientists have argued that the majority of emotional impact is derived from verbal cues. ...
Microsatellite analysis of maternity and the mating system in the Gulf
... to investigate the relationship between the mating system and sexual selection in sex-role reversed species. As a first step, we describe the genetic mating system in nature of the Gulf pipefish Syngnathus scovelli using molecular markers. The Gulf pipefish exhibits considerable sexual dimorphism re ...
... to investigate the relationship between the mating system and sexual selection in sex-role reversed species. As a first step, we describe the genetic mating system in nature of the Gulf pipefish Syngnathus scovelli using molecular markers. The Gulf pipefish exhibits considerable sexual dimorphism re ...
Microsatellite analysis of maternity and the mating system Syngnathus scovelli
... to investigate the relationship between the mating system and sexual selection in sex-role reversed species. As a first step, we describe the genetic mating system in nature of the Gulf pipefish Syngnathus scovelli using molecular markers. The Gulf pipefish exhibits considerable sexual dimorphism re ...
... to investigate the relationship between the mating system and sexual selection in sex-role reversed species. As a first step, we describe the genetic mating system in nature of the Gulf pipefish Syngnathus scovelli using molecular markers. The Gulf pipefish exhibits considerable sexual dimorphism re ...
Sexual Selection: Harem Size and the Variance in Male
... 0.572 Ⳳ 0.025, indicating that a majority of the variance in fitness among males arises from the difference in fitness between mating and nonmating males. In all species shown in table 1, sexual dimorphism exists to varying degrees, but most studies do not provide standardized estimates of degree of ...
... 0.572 Ⳳ 0.025, indicating that a majority of the variance in fitness among males arises from the difference in fitness between mating and nonmating males. In all species shown in table 1, sexual dimorphism exists to varying degrees, but most studies do not provide standardized estimates of degree of ...
Chapter 11: Sex and Evolution
... them on high-quality territories already occupied by other females will be greater than those on the remaining low-quality territories not yet occupied by other females. Females choosing to join other females on high-quality territories do so even though they must share resources with existing femal ...
... them on high-quality territories already occupied by other females will be greater than those on the remaining low-quality territories not yet occupied by other females. Females choosing to join other females on high-quality territories do so even though they must share resources with existing femal ...
Sex hormones and finger length: What
... The ratio of the lengths of the second and fourth manual digits (2D:4D) reliably differs by sex, with males having a lower 2D:4D (Manning, Scutt, Wilson, & Lewis-Jones, 1998). This sex difference exists in 2-year-old children (Manning et al., 1998) and may be established prenatally by the 13th or 14 ...
... The ratio of the lengths of the second and fourth manual digits (2D:4D) reliably differs by sex, with males having a lower 2D:4D (Manning, Scutt, Wilson, & Lewis-Jones, 1998). This sex difference exists in 2-year-old children (Manning et al., 1998) and may be established prenatally by the 13th or 14 ...
1 - OpenPsych
... mechanism to account for this finding is sexual selection, if a trade-off exists between physical and intellectual competition, implying that intelligence and physical strength are opposite or conflicting strategies employed by males for attracting or controlling females. To test this “brawn vs brai ...
... mechanism to account for this finding is sexual selection, if a trade-off exists between physical and intellectual competition, implying that intelligence and physical strength are opposite or conflicting strategies employed by males for attracting or controlling females. To test this “brawn vs brai ...
The Sociology of Human Sexuality
... the male market for pornography is huge, but the female market is virtually nonexistent. There is an extremely widespread, probably universal, desire on the part of men to be stimulated by the sight of female genitals. Symons interprets this dimension of male sexuality as an evolutionary adaptation ...
... the male market for pornography is huge, but the female market is virtually nonexistent. There is an extremely widespread, probably universal, desire on the part of men to be stimulated by the sight of female genitals. Symons interprets this dimension of male sexuality as an evolutionary adaptation ...
Sexually selected females in the monogamous Western Australian
... selection on females, i.e. whether it is generated by intrasexual competition among females for males or by intersexual mate choice as a consequence of male preference for large females. The answer to this question will call for future, detailed behavioural studies. However, it is possible that both ...
... selection on females, i.e. whether it is generated by intrasexual competition among females for males or by intersexual mate choice as a consequence of male preference for large females. The answer to this question will call for future, detailed behavioural studies. However, it is possible that both ...
Dusting Behavior - Digital Commons @ OWU
... example, post-pubescent and adult African elephant males are more likely than females to engage in chemosensory behaviors that could indicate female reproductive receptivity, including investigation of urine and feces. While in captivity, examining chemosensory cues might be valuable to our older ma ...
... example, post-pubescent and adult African elephant males are more likely than females to engage in chemosensory behaviors that could indicate female reproductive receptivity, including investigation of urine and feces. While in captivity, examining chemosensory cues might be valuable to our older ma ...
Mate Choice, Sexual Conflict, and Evolution of Senescence
... experimental males induced much higher female mortality rates than did the control males. Thus, it appears that males are continually evolving ways to maximize their sperm competitive ability, including processes that manipulate female behavior or physiology, and females are evolving counteradaptati ...
... experimental males induced much higher female mortality rates than did the control males. Thus, it appears that males are continually evolving ways to maximize their sperm competitive ability, including processes that manipulate female behavior or physiology, and females are evolving counteradaptati ...
Presentation
... loss of lean body mass, including muscle and bone density, along with an increase in body fat especially visceral fat ...
... loss of lean body mass, including muscle and bone density, along with an increase in body fat especially visceral fat ...
Sexual Conflict - Evolutionary Biology
... • after the spiderlings hatch the female provides brood care by regurgitation and later gets consumed by her own offspring • males make all the mate searching and probably encounter only 1-2 females in their lives, making each female extremely important • males steal about 33% of the egg sacks and ...
... • after the spiderlings hatch the female provides brood care by regurgitation and later gets consumed by her own offspring • males make all the mate searching and probably encounter only 1-2 females in their lives, making each female extremely important • males steal about 33% of the egg sacks and ...
Increased Sexual Risk Behavior and High HIV Seroincidence
... Funding provided by NIH/NIDA grants R01DA10864, R01DA12805 and R01DA15641 ...
... Funding provided by NIH/NIDA grants R01DA10864, R01DA12805 and R01DA15641 ...
Diapositiva 1 - CTN Dissemination Library
... However, it was in the opposite direction to that hypothesized. Non-Caucasian participants in SSB, compared to those in HE, showed significant increases in female condom skill; no intervention differences were detected among Caucasian women. Further, for the outcome of male condom use skills, there ...
... However, it was in the opposite direction to that hypothesized. Non-Caucasian participants in SSB, compared to those in HE, showed significant increases in female condom skill; no intervention differences were detected among Caucasian women. Further, for the outcome of male condom use skills, there ...
Becoming A Woman: Simone de Beauvoir on
... traumatic: the distress is due to a lack of generosity in the man ’s sexual behaviour, combined with the woman’s fear of being objectified before an aggressive sexual gaze. She suggests that the way to a more positive sexual experience for both genders is through each partner acting in ‘erotic gener ...
... traumatic: the distress is due to a lack of generosity in the man ’s sexual behaviour, combined with the woman’s fear of being objectified before an aggressive sexual gaze. She suggests that the way to a more positive sexual experience for both genders is through each partner acting in ‘erotic gener ...
What is Play For? Sexual Selection and the Evolution of Play
... Species that maintain significant levels of playfulness into adulthood typically also retain other neonatal characteristics. In 1926 Louis Bolk described a number of neonatal characteristics in humans (compared to apes), including a rounded, vaulted cranium, a juvenile face (flat, with small jaws an ...
... Species that maintain significant levels of playfulness into adulthood typically also retain other neonatal characteristics. In 1926 Louis Bolk described a number of neonatal characteristics in humans (compared to apes), including a rounded, vaulted cranium, a juvenile face (flat, with small jaws an ...
Sexual Communication with Pheromones Ring T. Card6 and
... communication in a number of insect groups illustrates the variety of these chemical communication systems. Within the Lepidoptera, only in a few cases discovered so far do maleemitted chemicals attract females. The vast majority of aggregation is initiated by females who release volatiles from a gl ...
... communication in a number of insect groups illustrates the variety of these chemical communication systems. Within the Lepidoptera, only in a few cases discovered so far do maleemitted chemicals attract females. The vast majority of aggregation is initiated by females who release volatiles from a gl ...
Physical Attractiveness as a Signal of Biological Quality
... that vary between cultures and time. In my thesis I found that it is not so. Instead, I show that attractiveness and preferred traits serve as cues to phenotypic qualities that provide selective benefits for those who choose their mates based on these criteria. In the first study I show that attract ...
... that vary between cultures and time. In my thesis I found that it is not so. Instead, I show that attractiveness and preferred traits serve as cues to phenotypic qualities that provide selective benefits for those who choose their mates based on these criteria. In the first study I show that attract ...
Sexual Selection IQ
... suggests that there is a trade-off in sexual selection between physical power or attractiveness and intellectual abilities. This provides a possible explanation for the finding by Piffer (2014) that frequencies of alleles known to increase height had a strong inverse correlation between populations ...
... suggests that there is a trade-off in sexual selection between physical power or attractiveness and intellectual abilities. This provides a possible explanation for the finding by Piffer (2014) that frequencies of alleles known to increase height had a strong inverse correlation between populations ...
Genetic factors predisposing to homosexuality may increase mating
... There is considerable evidence that human sexual orientation is genetically influenced, so it is not known how homosexuality, which tends to lower reproductive success, is maintained in the population at a relatively high frequency. One hypothesis proposes that while genes predisposing to homosexual ...
... There is considerable evidence that human sexual orientation is genetically influenced, so it is not known how homosexuality, which tends to lower reproductive success, is maintained in the population at a relatively high frequency. One hypothesis proposes that while genes predisposing to homosexual ...
Sexual selection on forelimb muscles of western grey kangaroos
... Studies of sexual selection have tended to concentrate on obvious morphological dimorphisms such as crests, horns, antlers, and other physical displays or weapons; however, traits that show no obvious sexual dimorphism may nevertheless still be under sexual selection. Sexual selection theory general ...
... Studies of sexual selection have tended to concentrate on obvious morphological dimorphisms such as crests, horns, antlers, and other physical displays or weapons; however, traits that show no obvious sexual dimorphism may nevertheless still be under sexual selection. Sexual selection theory general ...
Interpersonal Attraction Slides
... Do such sex difference findings in mate preferences reflect attitudes rather than behavior? How much are such sex differences in mate preference due to evolutionary factors (e.g., ovulation/peak fertility and more preference for males with signs of good reproductive health (muscles, masculine face, ...
... Do such sex difference findings in mate preferences reflect attitudes rather than behavior? How much are such sex differences in mate preference due to evolutionary factors (e.g., ovulation/peak fertility and more preference for males with signs of good reproductive health (muscles, masculine face, ...