An Empirical Note on the Role of Verbal Labels in Motor Short-Term Memory Tasks

Previous studies of motor short-term memory have shown that when a criterion movement on a semicircular positioning task is accompanied by an appropriate verbal label (a clock-face position), recall of the movement is more accurate than when only the movement is presented. This increased accuracy could be due to either the additional spatial information provided by the label or enhanced retention of the movement information. These two alternatives cannot be distinguished on the basis of previous studies because the studies have not evaluated movement accuracy following presentation of the label alone. The present study employed such a condition in addition to the movement-only and movement-plus-label conditions to distinguish between the two hypotheses. In all conditions, subjects were asked to move to the criterion position after a retention interval of either 5 sec or 60 sec. Evidence indicated that subjects who received both the label and the movement tended to use the spatial information provided by the label at the 60-sec interval. The evidence did not indicate that the verbal label actually enhanced retention of the movement information.     

Linking Emotion to the Conflict Face‐Negotiation Theory: A U.S.–China Investigation of the Mediating Effects of Anger,Compassion, and Guilt in Interpersonal Conflict

This study linked emotion to the theoretical assumptions of the face‐negotiation theory and probed the critical role of anger, compassion, and guilt in understanding the complex pathways of their relationships with self‐construal, face concerns, and conflict styles in U.S. and Chinese cultures. Results showed that anger was associated positively with independent self‐construal, self‐face concern, and the competing style, and compassion was associated positively with interdependent self‐construal, other‐face concern, and the integrating, compromising, and obliging styles. Guilt was related positively with interdependent self‐construal and the obliging style in the United States, and with interdependent self‐construal and the avoiding style in China. Overall, emotion mediated the effects of self‐construal and face concerns on conflict styles in both cultures, but cultural differences also emerged.     

Comparison of grasping movements made by healthy subjects in a 3-dimensional immersive virtual versus physical environment

Virtual reality (VR) technology is being used with increasing frequency as a training medium for motor rehabilitation. However, before addressing training effectiveness in virtual environments (VEs), it is necessary to identify if movements made in such environments are kinematically similar to those made in physical environments (PEs) and the effect of provision of haptic feedback on these movement patterns. These questions are important since reach-to-grasp movements may be inaccurate when visual or haptic feedback is altered or absent. Our goal was to compare kinematics of reaching and grasping movements to three objects performed in an immersive three-dimensional (3D) VE with haptic feedback (cyberglove/grasp system) viewed through a head-mounted display to those made in an equivalent physical environment (PE). We also compared movements in PE made with and without wearing the cyberglove/grasp haptic feedback system. Ten healthy subjects (8 women, 62.1 ± 8.8 years) reached and grasped objects requiring 3 different grasp types (can, diameter 65.6 mm, cylindrical grasp; screwdriver, diameter 31.6 mm, power grasp; pen, diameter 7.5 mm, precision grasp) in PE and visually similar virtual objects in VE. Temporal and spatial arm and trunk kinematics were analyzed. Movements were slower and grip apertures were wider when wearing the glove in both the PE and the VE compared to movements made in the PE without the glove. When wearing the glove, subjects used similar reaching trajectories in both environments, preserved the coordination between reaching and grasping and scaled grip aperture to object size for the larger object (cylindrical grasp). However, in VE compared to PE, movements were slower and had longer deceleration times, elbow extension was greater when reaching to the smallest object and apertures were wider for the power and precision grip tasks. Overall, the differences in spatial and temporal kinematics of movements between environments were greater than those due only to wearing the cyberglove/grasp system. Differences in movement kinematics due to the viewing environment were likely due to a lack of prior experience with the virtual environment, an uncertainty of object location and the restricted field-of-view when wearing the head-mounted display. The results can be used to inform the design and disposition of objects within 3D VEs for the study of the control of prehension and for upper limb rehabilitation.     

Successful Aging Across Adulthood: Hassles,Uplifts, and Self-Assessed Health in Daily Context

To examine the ways in which age, sex, daily uplifts, and daily hassles influence fluctuations in self-assessed health (SAH). A 14-day experience sampling study was conducted among community-dwelling adults (N?=?87). The distribution-free method of generalized estimating equations was used to examine whether changes in the intensity of daily hassles and changes in intensities of daily uplifts predicted subsequent changes in SAH. Both hassles and uplifts influenced SAH, although neither age nor sex influenced these associations. Findings are discussed in terms of the benefits of examining the daily context as an influence on successful aging.     

Contemporary Myths, Sexuality Misconceptions, Information Sources, and Risk Perceptions of Bodabodamen in Southwest Uganda

This article reports findings from a study conducted among 212 private motorbike–taxi riders, locally called bodabodamen, from two study sites—a slum area and the urban center of Masaka town. Qualitative and quantitative methods were triangulated; a questionnaire, focus group discussions, in-depth interviews, case studies, and interactive workshops were all used. There were high levels of awareness of HIV, much more than sexually transmitted diseases (STDs), because many participants had closely experienced HIV/AIDS. Knowledge about sexual health contained several misconceptions, misinformation, and myths rooted in both the historical and contemporary social cultural context. Due to high illiteracy levels, bodabodamen cannot access many standard health education materials issued by government and private health organizations through the print and electronic media, as well as those published in languages other than the local vernacular. These (and possibly other) disadvantaged groups remain at risk of HIV and STDs. Especial efforts need to be made to provide appropriate health education.     

Automaticity without extensive training: The role of memory retrieval in implementation of task-defined rules

Although the concept of automaticity is closely associated with extensive rote training, previous studies have shown that task-defined stimulus-response (S-R) mappings can be implemented in parallel and involuntarily, without much training, as if they are automatically processed. An irrelevant task context may trigger a task-defined rule because the rule is actively maintained in working memory, resulting in erroneous implementation of that rule. However, the present study demonstrated that active maintenance of task rules is not necessary for their automatic implementation. Instead, the results are consistent with the memory view of automaticity, according to which task-defined S-R rules are implemented via automatic retrieval of S-R episodes.     

Early sex differences in weighting geometric cues

When geometric and non-geometric information are both available for specifying location, men have been shown to rely more heavily on geometry compared to women. To shed insight on the nature and developmental origins of this sex difference, we examined how 18- to 24-month-olds represented the geometry of a surrounding (rectangular) space when direct non-geometric information (i.e. a beacon) was also available for localizing a hidden object. Children were tested on a disorientation task with multiple phases. Across experiments, boys relied more heavily than girls on geometry to guide localization, as indicated by their errors during the initial phase of the task, and by their search choices following transformations that left only geometry available, or that, under limited conditions, created a conflict between beacon and geometry. Analyses of search times suggested that girls, like boys, had encoded geometry, and testing in a square space ruled out explanations concerned with motivational and methodological variables. Taken together, the findings provide evidence for an early sex difference in the weighting of geometry. This sex difference, we suggest, reflects subtle variation in how boys and girls approach the problem of combining multiple sources of location information.     

Strengths Use as a Predictor of Well-Being and Health-Related Quality of Life

There is a growing body of research devoted to the examination of character strengths as conceptualized by Values-In-Action (VIA) strengths classification system. However, there remains a dearth of research examining generic strengths use and its relationship with well-being, health-related quality of life (HRQOL), and VIA character strengths. In this crosssectional study, 135 undergraduate university students completed measures of strengths use, subjective well-being (SWB), self-esteem, self-efficacy, and HRQOL, and endorsed five top VIA strengths. Results revealed strengths use is a unique predictor of SWB, but not HRQOL. The VIA strengths of hope and zest were significant positive predictors of life satisfaction. The most commonly-endorsed VIA strengths were: love, humor, kindness, social intelligence, and open-mindedness. The least-endorsed VIA strengths were: leadership, perseverance, wisdom, spirituality, and self-control. Overall, results suggest an important link between generic strengths use and specific VIA strengths and their impact on SWB.