Genetic mediation of the relationship between social support and psychological well-being.

This study assessed genetic and environmental influences on the association between social support and psychological functioning using the combined adoption/twin design from the Swedish Adoption/Twin Study of Aging. A subsample of 424 twin pairs, 50 years and older, was used: 64 pairs of identical twins reared apart, 95 pairs of identical twins reared together, 132 pairs of fraternal twins reared apart, and 133 pairs of fraternal twins reared together. Multivariate model-fitting analyses indicated that the relationship between the perceived adequacy of social support and psychological well-being (depression and life satisfaction) was mediated in part by genetic factors.     

Stability and predictive ability of personality traits across 9 years

In the present study, personality traits, as assessed by the Karolinska Scales of Personality (KSP) were found to be stable after 9 years, both with regard to mean level stability (absolute stability) and rank-order stability (relative or differential stability). Moreover, outcome scales were applied measuring either perceptions of satisfaction or scales measuring functioning. Personality scales (from the Eysenck Personality Questionnaire and the KSP) completed in 1986/1987 were associated with measures (completed in 1995/1996) of satisfaction and functioning of family life, emotional and physical health, and work. Specifically, neuroticism-related personality traits predicted a lack of satisfaction with health, but not functional problems due to health. In contrast, neuroticism-related personality traits predicted poor functioning but not satisfaction with family life and work.     

The Cultural Context of the American Counseling Association Code of Ethics

The American Counseling Association code of ethics was constructed in a particular cultural context and reflects the assumptions of that context. Beginning with a discussion of the purposes served by ethical codes, I review 3 patterns of implicit assumptions: (a) examples of implicit cultural bias, (b) examples of cultural encapsulation, and (c) examples favoring the dominant culture. Positive recommendations for developing more inclusionary ethical guidelines are discussed on the basis of case examples and the consequences of good or bad ethical practice. The need to make underlying philosophical and cultural assumptions explicit in the Preamble to the code of ethics is clarified.     

Holding an object one is looking at: Kinesthetic information on the object’s distance does not improve visual judgments of its size

Visual judgments of distance are often inaccurate. Nevertheless, information on distance must be procured if retinal image size is to be used to judge an object’s dimensions. In the present study, we examined whether kinesthetic information about an object’s distance—based on the posture of the arm and hand when holding it—influences the object’s perceived size. Subjects were presented with a computer simulation of a cube. This cube’s position was coupled to that of a rod in the subject’s hand. Its size was varied between presentations. Subjects had to judge whether the cube they saw was larger than, smaller than, or the same size as a reference. On some presentations, a small difference was introduced between the positions of the rod and of the simulated cube. When the simulated cube was slightly closer than the rod, subjects judged the cube to be larger. When it was farther away, they judged it to be smaller. We show that these changes in perceived size are due to alterations in the cube’s distance from the subject rather than to kinesthetic information.     

Measurement Theoretic Semantics And The Semantics Of Necessity

In the first two sections I present and motivate a formal semantics program that is modeled after the application of numbers in measurement (e.g., of length). Then, in the main part of the paper, I use the suggested framework to give an account of the semantics of necessity and possibility: (i) I show thatthe measurement theoretic framework is consistent with a robust (non-Quinean) view of modal logic, (ii) I give an account of the semantics of the modal notions within this framework, and (iii) I defend the suggested account against various objections.     

Men's and Women's Mating Preferences: Distinct Evolutionary Mechanisms?

Have men and women evolved sex-distinct mating preferences for short-term and long-term mating, as postulated by some evolutionary theorists? Direct tests of assumptions, consideration of confounds with gender, and examination of the same variables for both sexes suggest men and women are remarkably similar. Furthermore, cross-species comparisons indicate that humans do not evidence mating mechanisms indicative of short-term mating (e.g., large female sexual skins, large testicles). Understanding human variability in mating preferences is apt to involve more detailed knowledge of the links between these preferences and biological and chemical mechanisms associated with sexual motivation, sexual arousal, and sexual functioning.     

Simultaneous processing of visual information and planning of hand movements in a visuo-manual search task

When searching for a target with eye movements, saccades are planned and initiated while the visual information is still being processed. If hand movements are needed to perform a search task, can they too be planned while visual information from the current position is still being processed? To find out we studied a visual search task in which participants had to move their hand to shift a window through which they could see the items. The task was to find an O in a circle of Cs. The size of the window and the sizes of the gaps in the Cs were varied. Participants made fast, smooth arm movements between items and adjusted their movements, when on the items, to the window size. On many trials the window passed the target and returned, indicating that the next movement had been planned before identifying the item that was in view.     

Response to Brasić (2007): psychomotor study of children with ADHD

In 2007 Brasi? questioned the methodology used by Pedersen and Surburg to test the effect of stimulant medication on lower extremity motor processing of children with attention deficit hyperactivity disorder (ADHD). The purpose of this response is to clarify the research design used in that 2005 study.     

Live interactive group-specific normative feedback reduces misperceptions and drinking in college students: a randomized cluster trial.

This research evaluated the efficacy of a live and interactive group-specific normative feedback intervention designed to correct misperceptions of alcohol-related group norms and subsequently reduce drinking behavior. Campus organizations (N = 20) containing 1,162 college students were randomly assigned to intervention or assessment-only control conditions. Participants in the intervention condition attended an intervention during their organization's regular standing meeting. Data were gathered in vivo using computerized handheld keypads into which participants entered personal responses to a series of alcohol-related questions assessing perceptions of normative group behavior as well as actual individual behavior. These data were then immediately presented in graphical form to illustrate discrepancies between perceived and actual behavioral group norms. Results indicated that compared with the control group, the intervention group reduced drinking behavior and misperceptions of group norms at 1-month and 2-month follow-ups. Changes in perceived norms mediated the reductions in drinking. Results demonstrate the effectiveness of a novel, technologically advanced, group-based, brief alcohol intervention that can be implemented with entire groups at relatively low cost.     

Prejudice and the function of attitudes relating to Muslim Australians and Indigenous Australians

The aim of the present study was to examine prejudice against Muslim Australians and Indigenous Australians and the function of those attitudes using previously identified functions, direct experiential–schematic and value expressive, and including a new indirect experiential–schematic function. Respondents were categorised into two groups: accepting and rejecting. For the Muslim data there was no difference between accepting and rejecting groups regarding the value‐expressive function, but acceptors reported the experiential–schematic function to a greater extent than did rejectors. For the Indigenous data there was no difference between groups on the value‐expressive or the experiential–schematic function. With both target groups, rejectors reported the indirect experiential–schematic function more than acceptors. The value‐expressive function was higher for the Muslim data and the experiential–schematic function was higher for the Indigenous data. The importance of taking into account the function of respondents' attitudes, the distinction between source and function of attitudes, as well as specific issues surrounding target groups themselves, is discussed.