Information space is action space: perceiving the partial lengths of rods rotated on an axle

In a single experiment, perceivers held unseen rods at some position along their lengths and reported the two partial lengths-to the left and to the right of the hand. Wielding was mechanically limited to a vertical plane. Previous research suggested that the information exploited for this task is captured in a space created from the moment of inertia and gravitational torque. The experiment reported here attempted to replicate the relevance of that space and to ask how exploration might access it. Perceivers were given feedback on accuracy on Blocks 2 and 3 of a four-block experiment, and their performance and position in information space were monitored. Exploratory movements were recorded. Judgments were shown to depend on inertial and gravitational torques, as expected. Analysis of exploratory movements suggested that occupying a locus in information space is equivalent to exploring at some angular acceleration. The apparent weighting of cues (gravitational and inertial torque), which might be interpreted as a cognitive process, was instead interpreted as a consequence of manner of exploration.     

"HIV testing is so gay": the role of masculine gender role conformity in HIV testing among men who have sex with men

Men who have sex with men (MSM) account for more than half of all new cases of HIV infection in the United States. Yet, many MSM are unaware of their HIV serostatus. Consistent with research indicating that gender role conformity impacts health behaviors, this study examined how masculine norms may influence HIV testing among MSM in the United States. Data from 170 self-identified MSM (age M = 46.45, SD = 12.18) of self-reported negative or unknown HIV serostatus living in the United States were used in this study. About half (52%) of participants reported that they had been tested for HIV within the past 12 months; 48% reported that they had not. Logistic regression was used to examine the association between domains of masculine gender role conformity and HIV testing within the past 12 months, controlling for number of sexual partners in the last 12 months. The masculine norm of heterosexual self-presentation (i.e., desire to be perceived by others as heterosexual) was negatively associated with HIV testing (B = -0.74, SE B = 0.36, O.R. = 0.48, 95% CI [0.24, 0.96]), after controlling for the effect of number of sexual partners. Psychologists and other health professionals may remain mindful of potential implications of HIV testing among MSM, including potential for MSM to view HIV testing as an "outing" procedure.     

Lateral interception II: predicting hand movements

D. M. Jacobs and C. F. Michaels (2006) concluded that aspects of hand movements in lateral catching were predicted by the ratio of lateral optical velocity to expansion velocity. Their conclusions were based partly on a modified version of the required velocity model of catching (C. E. Peper, R. J. Bootsma, D. R. Mestre, & F. C. Bakker, 1994). The present article considers this optical ratio in detail and asks whether it, together with a control law, predicts the (often curious) hand trajectories observed in lateral interception. The optical ratio was used to create a succession of target-position inputs for the vector integration to endpoint model of hand movements (D. Bullock & S. Grossberg, 1988). The model used this succession, initial hand position, and model parameters (fit to 60 trials) to predict hand trajectories on each trial. Predicted trajectories were then compared with observed hand trajectories. Hand movements were predicted accurately, especially in the binocular condition, and were superior to predictions based on lateral ball position, the input variable of the required velocity model. The authors concluded, as did C. E. Peper et al. (1994), that perceivers continuously couple movements to optics.     

A Worksite smoking cessation intervention involving the media and incentives

This study evaluated an attempt at 38 workplaces to help employees stop or reduce their levels of smoking. In past research, worksite support groups, in combination with a media smoking cessation program and self-help manuals, were found to be effective in helping employees quit smoking. Unfortunately, recidivism was found at the follow-up evaluations. The present study replicated the results of the previous worksite smoking cessation program with support groups, a television intervention, and self-help manuals. At this postpoint, 42% of employees provided groups plus incentives were abstinent compared to only 15% who were only provided self-help materials. An important difference in this study was that there were also monthly follow-up support groups and incentives. Work settings can be a source of stress and conflict, which can precipitate relapse. At a 12-month follow-up, 26% of those participants who were provided support and incentives were abstinent compared to 16% who were only provided the self-help materials.     

Other mothers: toward an ethic of postmaternal practice

This essay attempts a deliberately perverse interpretation of die new reproductive practices (e.g., contract pregnancy, in vitro fertilization, etc.) in an effort to rethink maternal subjectivity and the bodies that might accompany it.     

Individual Differences in Religious Motivation Influence How People Think

Motives matter and may have implications for how people cognitively experience meaning through religion and spirituality. Specifically, intrinsically motivated people perceive religion and spirituality are more central to meaning in life, which should promote a tendency to adopt more coherent, expansive cognitive representations. In contrast, extrinsically motivated people may adopt narrower cognitive representations since their motivation is more proximally oriented. The present study tests these possibilities by examining how religious motivation relates to action identification (tendency to use coherent, higher‐level cognitive representations). Results from 630 participants revealed that among religious people, intrinsic and extrinsic‐personal religious motivations indirectly influence higher‐level action identification through strength of spiritual beliefs. These relationships were not evident among nonreligious people. Furthermore, extrinsic‐social religious motivation and religious service attendance did not relate to action identification. These findings demonstrate that religious motivation differences are consequential for the action identities people rely upon to form a sense of meaning.     

Memory for the Functional Characteristics of Climbing Walls: Perceiving Affordances

In 2 experiments, differences in visual perception of climbing routes (route finding) between 7 expert climbers, 4 novices, and 9 inexperienced participants were studied. In both experiments, participants reproduced on a scale model the locations and orientations of 23 holds of a climbing wall. The results showed that the expert climbers recalled more information and recalled clusters of information and that they focused on the functional aspects of a climbing wall, whereas they neglected its structural features. Inexperienced participants did not recall such clustered information, and they reported almost exclusively the structural features of the holds. The perception of nested affordances and the expert climbers' neglect of details are discussed.     

Measuring Coping in Low-Income European American,African American,and Mexican American Adolescents: An Examination of Measurement Equivalence

We examined the cross-ethnic and cross-language equivalence of the Children's Coping Strategies Checklist (Ayers, T.S., Sandler, I.N., West, S.G. and Roosa, M.W. (1996). A dispositional and situational assessment of children's coping: Testing alternative models of coping. Journal of Personality , 64 (4), 923-958) by assessing item, functional, and scalar equivalence in a sample of 319 European American, African American, and Mexican American adolescents from low-income inner-city families. Depression, as measured by Children's Depression Inventory, was the criterion in the analyses of scalar equivalence. The results suggest considerable cross-ethnic and cross-language measurement equivalence of the Children's Coping Strategies Checklist. The findings also suggest some caution in using the Children's Depression Inventory in comparative studies of African American and Mexican American adolescents or in studies that treat these groups as homogeneous samples.     

A Minority Stress Model for Suicidal Ideation in Gay Men

There is a dearth of research on mechanisms underlying higher rates of suicidal ideation among gay men compared to heterosexual men. The purpose of this study was to establish the link between social/psychological predictor variables and suicidal ideation by testing a hypothesized minority stress model. Structural equation modeling was used to assess the relationships posited in the model using data from a community sample of 167 gay men. Model fit was adequate and hypothesized relationships were partially supported. Also, depressive symptoms partially mediated the relationship between (less) outness predicting suicidal ideation. These findings imply that therapeutic approaches targeting the coming out process may be more effective than approaches targeting internalized homophobia when suicidal ideation is indicated in the clinical presentation of gay and bisexual men.