Ovulation leads women to perceive sexy cads as good dads

Why do some women pursue relationships with men who are attractive, dominant, and charming but who do not want to be in relationships--the prototypical sexy cad? Previous research shows that women have an increased desire for such men when they are ovulating, but it is unclear why ovulating women would think it is wise to pursue men who may be unfaithful and could desert them. Using both college-age and community-based samples, in 3 studies we show that ovulating women perceive charismatic and physically attractive men, but not reliable and nice men, as more committed partners and more devoted future fathers. Ovulating women perceive that sexy cads would be good fathers to their own children but not to the children of other women. This ovulatory-induced perceptual shift is driven by women who experienced early onset of puberty. Taken together, the current research identifies a novel proximate reason why ovulating women pursue relationships with sexy cads, complementing existing research that identifies the ultimate, evolutionary reasons for this behavior.     

Work and Rest Variables in the Acquisition of Psychomotor Tracking Skill

College students (75 men, 75 women) matched in preliminary performance of 100 sec on the rotary pursuit apparatus were randomly assigned to five experimental groups. Their work/rest ratios, measured in seconds, were: 20/20, 30/30, 60/60, 90/90,120/120. All subjects received 30 min of total practice time after the matching trial. There was a significant practice effect and a significant practice x conditions interaction, but no main effect due to the cycles’ length or number. The decay rate of reactive inhibition (lr) is probably independent of its prior growth level; hence postrest residual lr is proportional to prerest accumulation. Partly because they generated lr in hypothetically greater amounts, women were significantly less proficient on the average than men, and sex interacted with practice. Although males had higher initial and final levels of ability than females, the two sexes’ acquisition curves showed the same rate parameters in our mathematical model.     

An extended motor network generates beta and gamma oscillatory perturbations during development

This study examines the time course and neural generators of oscillatory beta and gamma motor responses in typically-developing children. Participants completed a unilateral flexion–extension task using each index finger as whole-head magnetoencephalography (MEG) data were acquired. These MEG data were imaged in the frequency-domain using spatial filtering and the resulting event-related synchronizations and desynchronizations (ERS/ERD) were subjected to voxel-wise statistical analyses to illuminate time–frequency specific activation patterns. Consistent with adult data, these children exhibited a pre-movement ERD that was strongest over the contralateral post-central gyrus, and a post-movement ERS response with the most prominent peak being in the contralateral precentral gyrus near premotor cortices. We also observed a high-frequency (∼80 Hz) ERS response that coincided with movement onset and was centered on the contralateral precentral gyrus, slightly superior and posterior to the beta ERS. In addition to pre- and post-central gyri activations, these children exhibited beta and gamma activity in supplementary motor areas (SMA) before and during movement, and beta activation in cerebellar cortices before and after movement. We believe the gamma synchronization may be an excellent candidate signal of basic cortical motor control, as the spatiotemporal dynamics indicate the primary motor cortex generates this response (and not the beta oscillations) which is closely yoked to the initial muscle activation. Lastly, these data suggest several additional neural regions including the SMA and cerebellum are involved in basic movements during development.     

Intra-Household Arrangements and Economic Satisfaction

This paper studies the nature of intra-household arrangements in Mexico on the basis of the relationship between a person’s economic satisfaction and her household income. It also studies different theories of the family. The main results support the argument that Mexican families are mostly altruistic and communitarian, with the evidence rejecting a cooperative-bargaining model in Mexican families. Special consideration is given to the situation in low-income families, where marginalization from the household’s economic resources may expose a person to substantially severe economic deprivation. Intra-household arrangements may vary across countries and cultures. Thus, their understanding is crucial for making cross-country comparisons based on household income and per-capita income measures.     

Life satisfaction and satisfaction in domains of life: is it a simple relationship?

This paper studies the nature of the relationship between life satisfaction and satisfaction in domains of life. The domains-of-life literature assumes that a person’s overall satisfaction with his or her life depends on his or her satisfaction in many concrete areas of life, which are classified into a few main domains of life. This paper addresses the issue of what characteristics the relationship between life satisfaction and satisfaction in domains of life has by focusing on its specification. The domains-of-life literature has commonly assumed that an additive relationship between domains satisfaction and life satisfaction does exist. This paper argues that the use of an additive relationship has substantially restricted our comprehension of the relationship; since it makes impossible to empirically address questions such as: Is life satisfaction just a weighted average of domain satisfactions? How easy is it to substitute satisfaction in one domain by satisfaction in another? Is it reasonable to expect similar additional benefits when we continuously improve satisfaction in one domain? What happens with our life satisfaction when we manage to continuously improve satisfaction in all domains? What happens with the importance of one domain when satisfaction in another domain declines? The paper argues that there could be substantial gains in the understanding of the relationship by assuming alternative specifications. At an empirical level the investigation works with four different specifications: an additive relationship, a semi-logarithm relationship, a logarithm–logarithm relationship, and a constant elasticity of substitution (CES) relationship. Using a database from Mexico, the investigation finds out that an additive specification provides – at least for Mexico – a goodness of fit similar to those of alternative specifications. However, there are some relevant issues in the relationship between domains satisfaction and overall life satisfaction that cannot be studied with an additive specification; hence, the?use of an alternative specification – in particular a CES specification – is preferable if the objective is to understand rather than to predict life satisfaction.     

Generalization of the Brown-Forsythe approach to factorial designs

The current paper proposes a solution that generalizes ideas of Brown and Forsythe to the problem of comparing hypotheses in two-way classification designs with heteroscedastic error structure. Unlike the standard analysis of variance, the proposed approach does not require the homogeneity assumption. A comprehensive simulation study, in which sample size of the cells, relationship between the cell sizes and unequal variance, degree of variance heterogeneity, and population distribution shape were systematically manipulated, shows that the proposed approximation was generally robust when normality and heterogeneity were jointly violated.     

Influence of autonomy support, social goals and relatedness on amotivation in physical education classes

The purpose of this study was to analyze some factors that influence amotivation in physical education classes. A sample of 399 students, of ages 14 to 16 years, was used. They completed the Perceived Autonomy Support Scale in Exercise Settings (PASSES), the Social Goal Scale-Physical Education (SGS-PE), the factor of the Basic Psychological Needs in Exercise Scale (BPNES) adapted to physical education and the factor of the Perceived Locus of Causality Scale (PLOC). The psychometric properties of the PASSES were analyzed, as this scale had not been validated to the Spanish context. In this analysis, the scale showed appropriate validity and reliability. The results of the structural equation model indicated that social responsibility and social relationship goals positively predicted perception of relatedness, whereas the context of autonomy support did not significantly predict it. In turn, perception of relatedness negatively predicted amotivation. The findings are discussed with regard to enhancing students' positive motivation.     

Social Influence in Personally Relevant Contexts: The Respect Attributed to the Source as a Factor Increasing Smokers’ Intention to Quit Smoking1

The study examined the effects of the status of the source in personally relevant persuasion contexts. Smokers (N= 117) with either weak or strong identity as smokers were exposed to an anti‐smoking message, targeting either the tobacco industry or smokers, and attributed either to a health institute or a neighborhood association. The main dependent variable was the change in intention to quit smoking. As expected, the neighborhood association was considered more respectful of the freedom of choice of the target than was the health institute. In high personal relevance conditions (i.e., participants with strong identities as smokers and message explicitly targeting smokers), smokers strengthened their intention to quit smoking when the source was the neighborhood association, but decreased it when the source was the health institute. Implications for health campaign implementation are discussed.     

THE USE AND IMPACT OF PSYCHOLOGY IN VENEZUELA: TWO EXAMPLES

Two cases are presented to illustrate how psychological knowledge and technology have been used in Venezuela. The first case relates to the use of psychological technology in Venezuelan politics where it is possible to identify a change from “caudillismo” to a more democratic “voting against” political culture. There is evidence that imported political compaigning techniques and extensive use of polling have been a factor of some importance in such change. The second case refers to the activities of the Minister for the Development of Intelligence, who has started a group of projects to improve cognitive functioning in different age groups. These programs are too recent to ascertain their effectiveness; so data is reported on an opinionative evaluation of one of the projects, carried out among Venezuelan psychologists and pediatricians.