Evolution and Two Popular Proposals for the Definition of Function

Summary  In the biological realm, a complete explanation of a trait seems to include an explanation in terms of function. It is natural to ask of some trait, “What is its function?” or “What purpose in the organism does the particular trait serve?” or “What is the goal of its activity?” There are several views concerning the appropriate definition of function for biological matters. Two popular views of function with respect to living things are Cummins’ organizational account and the Griffiths/Godfrey-Smith modern history account. Whereas Cummins argues that a trait functions so as to contribute to the general organization of some organism’s present structure, Griffiths, and Godfrey-Smith argue that a trait functions because of its fitness with respect to the organism’s recent evolutionary history. In this paper, I show how these accounts can be made compatible and compliment one another. Given that structure, organization, operational flexibility, function, and evolutionary history are all factors to be considered in an organism’s makeup, we should expect that the traits of an organism function the way they do because such traits presently contribute to the overall organization of the organism (Cummins) as well as were selected for in the organism’s species’ recent ancestry (Griffiths/Godfrey-Smith).     

Capturing the Naturally Occurring Superior Performance of Experts in the Laboratory: Toward a Science of Expert and Exceptional Performance

ABSTRACT— Expertise researchers have traditionally shied away from studying the highest levels of achievement in favor of studying basic cognitive processes, such as memory and categorization. In this article, we present a different approach that is focused on capturing superior (expert) performance on representative tasks that reveal the essential characteristics of expertise in a given domain. In domains where expert performance is measurable, acquisition is gradual and the highest levels are only attained after 10 years of intense preparation—even for the most "talented." Analyses of reproducibly superior performance show that it is mediated by physiological adaptations and cognitive skills acquired as a result of the cumulative effects of special practice activities (deliberate practice). It appears that the genes necessary to attain such adaptations and expert skills can be activated in healthy children—the only clear exceptions to date being genes that control body size and height. Our knowledge of how experts acquire their superior skills provides insights into the potential for human adaptation and skill acquisition and has important implications for theories of the structure of general and expert cognition, as well as for training interventions in applied psychology and education.     

Work-family supportiveness organizational perceptions: Important for the well-being of male blue-collar hourly workers?

The current study questions whether organizational perceptions of family supportiveness predict work-family conflict (WFC) and job satisfaction for an atypical sample of male hourly workers in a manufacturing organization, and whether those relationships depend on work (number of work hours) and family (number of family roles) demands. A unidimensional factor structure for the family supportiveness scale was not found; however a subscale for the extent that the organization supported work-family balance was strongly related to WFC and job satisfaction. An interaction was found such that those working long hours in the family-supportive work environment had lower WFC than those working long hours in an unsupportive environment, while the number of family roles (e.g., spouse, parent, eldercare) had no moderating effects. Supporting employees’ non-work life is determined to be important for these employees.     

Framing divorce reform: media, morality, and the politics of family

No-fault statutes changed divorce from an adversarial system pitting victims against victimizers, with the state acting as enforcer of marital norms, to a private decision between unhappily married but legally blameless partners. Divorce reform following no-fault primarily focused on making divorce more fair for the parties involved. Over the last several decades, divorce reform has transitioned from making divorce better to making marriage healthier. The good divorce has slipped from policy attention, elevating the potential for restigmatization of divorced couples and their children. We trace the trajectory of media framing of divorce reform discourse in three general circulation newspapers from the start of the no-fault revolution, noting how media framing parallels and naturalizes the transition in divorce reform policy. We conclude by observing the prevalence of divorce and the related need for therapists to be cognizant of this naturalization process, thereby keeping the good divorce as a goal for those who desire to end their marriages.     

The origins of modern divorce

High rates of marital dissolution and easy access to divorce are not unprecedented, historically or cross-culturally. But contemporary divorce in North America and Western Europe has different origins and features than divorce in previous cultures. The origins of modern divorce patterns date back more than 200 years, to the invention of the historically unprecedented idea that marriage should be based on love and mutual affection. Ironically, then, the fragility of modern marriage stems from the same values that have elevated the marital relationship above all other personal and familial commitments: the concentration of emotion, passion, personal identity, and self-validation in the couple relationship and the attenuation of emotional attachments and obligations beyond the conjugal unit. The immediate causes of divorce may range from factors as diverse as the personal psychological characteristics of one or both spouses to the stresses of economic hardship and community disintegration. But in a larger perspective, the role of divorce in modern societies and its relatively high occurrence both flow from the same complex of factors that have made good marriages so much more central to people's happiness than through most of the past, and deterioration of a marital relationship so much more traumatic.     

Links between parental psychological violence, other family disturbances, and children's adjustment

In a sample of 143 parent-child dyads from two-parent and separated families, this investigation documented the links between parental psychological violence and separation or divorce, severity of parental conflict, triangulation of the child in this conflict, and polarized parent-child alliances. The unique and combined contributions of all these variables to children's behavior problems were also assessed. Participants were parents, mostly mothers, and their 10-12-year-old child. They were recruited through schools, community organizations, and newspapers. Questionnaires were administered at home. Findings suggest that separated families undergo more relational disturbances than two-parent families (more severe conflicts, more triangulation, stronger parent-child alliances), but the amount of parental psychological violence was similar in both groups. Psychological violence was associated with the severity of parental conflict, especially in two-parent families. Triangulation of the child in parental conflict was another correlate of psychological violence. Once all variables were controlled for, psychological violence remained the only significant correlate of children's externalized behavior problems. These findings raise the importance of preventing psychological violence toward children, especially in families plagued with severe parental conflicts.     

Distress and Family Functioning in Oncogenetic Counselling for Hereditary and Familial Breast and/or Ovarian Cancers

We conducted a psychological assessment during oncogenetic counseling for hereditary breast/ovarian cancer. Anxiety and depression were assessed with the HAD scale, and family functioning and satisfaction with FACES III. HAD was administered at baseline (t ₁)_, at risk communication (t ₂), at genetic test result communication, or at first surveillance in not tested subjects (t ₃); FACES III was administered at baseline only. We analysed a total of 185 questionnaires administered to the 37 subjects studied. Although not pathological, distress was significantly higher at t ₂ and t ₃ (p = 0.027 and p = 0.039, respectively). Health and marital status were significantly associated with distress. In a disease-free condition, anxiety was higher (p = 0.027) at t _2, and for single status, depression increased from t ₁ to t ₂ (p = 0.026). Families were perceived to be well functioning, and subjects were satisfied with their families. The data collected in this analysis could help to improve the quality of oncogenetic counselling in clinical practice.     

Assessment of Psychosocial Outcomes in Genetic Counseling Research: An Overview of Available Measurement Scales

The aim of the present paper was to describe and evaluate many of the measurement scales currently used in genetic counseling outcomes research. A team of three researchers reviewed the available literature and selected a variety of validated instruments suitable for measurement of genetic counseling outcomes. There are numerous scales to assess each of the following outcomes among counselees: satisfaction with genetic counseling; knowledge; decision-making; psychological adjustment; coping; perceived personal control; perceptions of disease risk; and family communication about genetic risk. However, the strengths and limitations inherent to each instrument warrant careful consideration prior to implementation. In the genetic counseling context, scale selection should be undertaken with thought directed towards the characteristics of the research sample (e.g. levels of literacy, culture, medical condition), the practicalities of the research setting (e.g. available funding and resources, time restrictions, researcher expertise), the purpose of the research (i.e. the specific aspect of the genetic counseling experience to be studied), and the science underlying the scale (e.g. theoretical framework, psychometric properties).