A theoretical analysis of sex differences in same-sex friendships

Sex Roles ◽  
1988 ◽  
Vol 19 (5-6) ◽  
pp. 349-363 ◽  
Author(s):  
Robert J. Barth ◽  
Bill N. Kinder
Keyword(s):  
Sex Differences ◽  
Theoretical Analysis ◽  
Same Sex

scholarly journals The social evolution of sleep: sex differences, intragenomic conflicts and clinical pathologies

2019 ◽  
Vol 286 (1894) ◽  
pp. 20182188 ◽  
Author(s):  
Gonçalo S. Faria ◽  
Susana A. M. Varela ◽  
Andy Gardner
Keyword(s):  
Gene Expression ◽  
Sex Differences ◽  
Theoretical Analysis ◽  
Empirical Data ◽  
Social Evolution ◽  
Maternal Origin ◽  
Intragenomic Conflict ◽  
The Social ◽  
Social Partners ◽  
Sleep Sex

Sleep appears to be essential for most animals, including humans. Accordingly, individuals who sacrifice sleep are expected to incur costs and so should only be evolutionarily favoured to do this when these costs are offset by other benefits. For instance, a social group might benefit from having some level of wakefulness during the sleeping period if this guards against possible threats. Alternatively, individuals might sacrifice sleep in order to gain an advantage over mate competitors. Here, we perform a theoretical analysis of the social evolutionary pressures that drive investment into sleep versus wakefulness. Specifically, we: investigate how relatedness between social partners may modulate sleeping strategies, depending upon whether sleep sacrifice is selfish or altruistic; determine the conditions under which the sexes are favoured to adopt different sleeping strategies; identify the potential for intragenomic conflict between maternal-origin versus paternal-origin genes regarding an individual's sleeping behaviour; translate this conflict into novel and readily testable predictions concerning patterns of gene expression; and explore the concomitant effects of different kinds of mutations, epimutations, and uniparental disomies in relation to sleep disorders and other clinical pathologies. Our aim is to provide a theoretical framework for future empirical data and stimulate further research on this neglected topic.

Sex Differences in Verbal Operant Conditioning

1964 ◽  
Vol 15 (1) ◽  
pp. 259-275 ◽  
Author(s):  
Victor J. Cieutat
Keyword(s):  
Sex Differences ◽  
Time Trends ◽  
Negative Reinforcement ◽  
Same Sex ◽  
Group Discussions ◽  
Design Modification ◽  
Personality Differences ◽  
Small Group Discussions ◽  
Verbal Operant ◽  
Conditioning Extinction

Two studies concerned effects of sex of Ss, sex of E, positive vs negative reinforcement (i.e., attention vs inattention), and time trends, on the conditioning and extinction of participation in structured and unstructured small group discussions. Previous results indicated reinforcement is effective only when administered by an E of the same sex as Ss. Present results did not support this expectation and also were not consistent with each other. Exp. I was partly consistent with expectation only when E was male; no conditioning was obtained by female Es. For Exp. II only the female E produced conditioning. Extinction effects in both experiments were inconsistent with expectation. In an earlier study (Cieutat, 1962) and in both Exps. I and II the same four factors were evaluated with some design modification, and were found to interact complexly and significantly ( p < .01, < .10, < .10, respectively). These interactions between sex of E, sex of Ss, reinforcement, and time, though significant in three independent evaluations, were so because of different trends in each case. These differences are discussed in terms of uncontrolled personality differences between Es and Ss.

Salivary Response to Lemon Juice as a Measure of Introversion in Children

1971 ◽  
Vol 33 (3_suppl) ◽  
pp. 1059-1065 ◽  
Author(s):  
John Casey ◽  
Donald L. McManis
Keyword(s):  
Sex Differences ◽  
Theoretical Analysis ◽  
Lemon Juice ◽  
Personality Inventory ◽  
Total Group ◽  
Eysenck Personality Inventory ◽  
The Relationship ◽  
Upper Third

The relationship between introversion, as measured by the Junior Eysenck Personality Inventory, and salivation to lemon juice was examined with 10 boys and 10 girls at CA 8, 10, and 12. Boys salivated significantly more than girls to lemon juice stimulation ( P < .05), but comparable sex differences also occurred in salivation to water by control Ss. Introversion correlated .43 ( P < .01) with salivation for all 25 girls but not for boys (r = .19). Ss who were in the upper third of the total group on extraversion showed significantly less salivation to lemon juice than did Ss in the lower third ( P < .025), which is consistent with Eysenck's theoretical analysis.

Cultural and Sex Differences in Rating the Self and an Hypothetical Well-Adjusted Person on Jack's Divided Self and Care as Self-Sacrifice Subscales

1999 ◽  
Vol 84 (1) ◽  
pp. 67-83 ◽  
Author(s):  
J. Koutrelakos ◽  
A. J. Baranchik ◽  
N. Damato
Keyword(s):  
Factor Analysis ◽  
Sex Differences ◽  
Sex Difference ◽  
The Self ◽  
Same Sex ◽  
Men And Women ◽  
Divided Self ◽  
The Usa

Ratings of the self and of an hypothetical well-adjusted man and woman on the Divided Self and Care as Self-sacrifice subscales of the Silencing the Self Scale were obtained for samples of men and women in the USA and Greece. Factor analysis confirmed the items' assignment to subscales for each of the three sets of ratings. Generally, Greeks scored higher than Americans on both subscales. While men usually scored higher than women on the Care subscale in both countries, they only did so in Greece for the Divided Self. Women had greater discrepancies than men between their self and well-adjusted same-sex rating on both subscales in each country, with this sex difference being greater in Greece than the USA and greater on the Care subscale in both countries.

Intimacy and structure: Sex differences in imagery of same-sex relationships

Sex Roles ◽  
1987 ◽  
Vol 16 (11-12) ◽  
pp. 539-558 ◽  
Author(s):  
Elizabeth Mazur ◽  
Rose R. Olver
Keyword(s):  
Sex Differences ◽  
Same Sex

Measuring Direct and Indirect Aggression: Is There a Response Bias?

2005 ◽  
Vol 97 (2) ◽  
pp. 563-566 ◽  
Author(s):  
Mat Gregoski ◽  
Wendi A. Malone ◽  
Deborah South Richardson
Keyword(s):  
Sex Differences ◽  
Undergraduate Students ◽  
Response Bias ◽  
Social Desirability ◽  
Self Report ◽  
Indirect Aggression ◽  
Same Sex ◽  
Negative Behaviors ◽  
Self And Other ◽  
Report Bias

Critics of self-report methods suggest that participants are likely to underreport their own negative behaviors given concerns about social desirability. The current study examined the problem of self-report bias by comparing individuals' estimates of their own and others' aggressive behavior. Undergraduate students (95 women, 50 men) completed the Richardson Conflict Response Questionnaire with regard to either their own behavior or that of another person of the same sex. As expected, participants reported significantly less aggression for themselves than for others. However, self and other ratings showed the same pattern of sex differences. These results suggest that, although individuals may underreport their own aggressive behaviors, this tendency may not affect relationships among variables.

Sex differences in same-sex friendship

Sex Roles ◽  
1982 ◽  
Vol 8 (7) ◽  
Author(s):  
MaytaA. Caldwell ◽  
LetitiaAnne Peplau
Keyword(s):  
Sex Differences ◽  
Same Sex

Sex Differences in Patterns of Association Among Indian Ocean Bottlenose Dolphins

Behaviour ◽  
1992 ◽  
Vol 123 (1-2) ◽  
pp. 38-69 ◽  
Author(s):  
Rachel A. Smolker ◽  
Andrew F. Richards ◽  
Richard C. Connor ◽  
John W. Pepper
Keyword(s):  
Sex Differences ◽  
Bottlenose Dolphins ◽  
Same Sex ◽  
Reproductive State ◽  
Discrete Subgroups ◽  
Party Size ◽  
Shark Bay ◽  
Association Coefficients ◽  
Males And Females

AbstractPatterns of association among bottlenose dolphins resident in Shark Bay, Western Australia were analyzed using party membership data. Parties contained an average of 4.8 individuals, but party size and composition were unstable. While these temporary parties often contained both males and females, long term consistent associations generally were between members of the same sex. The highest association coefficients, resulting from very frequent co-occurrence within parties were between males and between mothers and offspring. Males formed subgroups of two or three individuals who consistently associated with each other, and these were stable over periods of at least seven years in some cases. Male subgroups preferentially associated with particular other male subgroups. Females associated most consistently with other females, although not to the same extent as some males. Female associations were better described as a network rather than discrete subgroups. Male-female associations were generally inconsistent and depended in part on female reproductive state. Mothers and their offspring associated very consistently for at least 4 years.

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