PRELIMINARY EVALUATION OF AN OBSERVATION SYSTEM FOR RECORDING PHYSICAL ACTIVITY IN CHILDREN

Although mechanical means of measuring physical activity are available, they cannot provide information about the context in which such activity occurs. Therefore, direct‐observation systems remain essential tools for studying physical activity. The Observational System for Recording Physical Activity in Children (OSRAC) is a direct‐observation system for recording physical activity and associated environmental variables. We evaluated the concurrent validity of the OSRAC physical activity codes with two types of mechanical measures of physical activity: pedometers and heart‐rate monitors. The results indicate that heart rates and step totals generally covaried with the OSRAC activity‐level codes, suggesting that these codes are valid measures of physical activity in preschool children. Copyright © 2011 John Wiley & Sons, Ltd.     

Visual threat detection during moderate- and high-intensity exercise

The aim of the study was to assess performance on a visual threat-detection task during concurrently performed vigorous exercise on a cycle ergometer. Thirty (15 female) participants completed a baseline condition of seated rest and then moderate- and high-intensity exercise. Moderate- and high-intensity exercise conditions were completed on the 2nd day in a counterbalanced order. During each exercise condition, participants responded to 3 × 3 picture matrices (256 trials in each condition) that contained discrepant fear-relevant and discrepant fear-irrelevant pictures (?hman, Flykt, & Esteves, 2001). Response accuracy was significantly greater, and reaction time was significantly faster, during moderate- and high-intensity exercise compared with the rest condition (ps < .001). The discrepant fear-relevant matrix type was detected significantly more accurately than a discrepant fear-irrelevant matrix (p < .001). The discrepant fear-relevant matrix was detected significantly faster than all other matrix types (p < .001). These results suggest that exercise at a moderate and high intensity may enhance the efficiency of visual detection of both threatening and nonthreatening targets.     

The relationship between cognitive performance and electrophysiological indices of performance monitoring

Studies of electrophysiological indices of performance monitoring, such as the error-related negativity (ERN), posterror positivity (Pe), and N2 components of the event-related potential (ERP), suggest that increased ERN and Pe amplitudes and decreased N2 amplitudes are associated with better cognitive flexibility and cognitive control abilities; however, few studies have directly examined the relationship between cognitive performance and ERP indices of performance monitoring. We examined the neuropsychological profile of 89 healthy individuals who performed a modified flanker task. The neuropsychological domains tested included memory, verbal fluency, and attention/executive functioning. Pearson’s correlations and multiple regression analyses showed a significant relationship between measures of attention/executive functioning and ERN amplitude, even when negative affect, reaction time interference, and posterror slowing were controlled. N2 amplitude related only to posterror slowing. The amplitude of the Pe was not significantly related to any cognitive domains. These findings are consistent with recent work indicating that performance monitoring requires attention skills and cognitive flexibility. Implications for the conflict-monitoring and reinforcement-learning theories are discussed.     

How youth get engaged: grounded-theory research on motivational development in organized youth programs

For youth to benefit from many of the developmental opportunities provided by organized programs, they need to not only attend but become psychologically engaged in program activities. This research was aimed at formulating empirically based grounded theory on the processes through which this engagement develops. Longitudinal interviews were conducted with 100 ethnically diverse youth (ages 14–21) in 10 urban and rural arts and leadership programs. Qualitative analysis focused on narrative accounts from the 44 youth who reported experiencing a positive turning point in their motivation or engagement. For 38 of these youth, this change process involved forming a personal connection. Similar to processes suggested by self-determination theory (Ryan & Deci, 2000), forming a personal connection involved youth's progressive integration of personal goals with the goals of program activities. Youth reported developing a connection to 3 personal goals that linked the self with the activity: learning for the future, developing competence, and pursuing a purpose. The role of purpose for many youth suggests that motivational change can be driven by goals that transcend self-needs. These findings suggest that youth need not enter programs intrinsically engaged--motivation can be fostered--and that programs should be creative in helping youth explore ways to form authentic connections to program activities.     

Satisfying Friendship Maintenance Expectations: The Role of Friendship Standards and Biological Sex

The ideal standards model predicts linear relationship among friendship standards, expectation fulfillment, and relationship satisfaction. Using a diary method, 197 participants reported on expectation fulfillment in interactions with one best, one close, and one casual friend (N = 591) over five days (2,388 interactions). Using multilevel modeling, our study found that hypothesized relationships were moderated by participant sex. For males, ideal standards had a curvilinear relationship with expectation fulfillment, where higher standards were associated with less fulfillment, but both expectation fulfillment and standards directly predicted satisfaction. For females, ideal standards linearly predicted expectation fulfillment, but an interaction between standards and fulfillment predicted satisfaction. Implications for the relationship between ideal standards and sex on friendship maintenance and satisfaction are discussed.     

Inmates' perceptions of determinate and indeterminate sentences

The movement to replace indeterminate with determinate sentencing is among the most important recent developments in the criminal justice field. While the views of citizens and scholars on the subject have been widely promulgated, little is known about those of the ultimate “consumers” of sentencing reform, namely, inmates. This article examines the views of a systematic sample of inmates in a maximum security institution in Massachusetts. Subjects' opinions were sought on the relative merits of the two typs of sentencing, and possible behavioral and deterrent effects of a proposed switch to determinate sentencing. More inmates were found to be either opposed to or undecided about than in favor of determinate sentencing.     

Sex roles and soap operas: What adolescents learn about single motherhood

This study investigated the contribution of daytime television soap operas to the perception of the roles and lifestyle of the single mother. The perceptions of soap opera viewers and nonviewers were compared using 163 junior and senior high students as subjects, 9% of whom were ethnic minorities. In particular, viewers perceive that single mothers have good jobs, are relatively well-educated and do not live in poverty. Further, they perceive that their babies will be as healthy as most babies and that their babies will get love and attention from adult men who are friends of their mothers. To the degree that these perceptions contribute to the gender role socialization of adolescents, we are faced with a problematic situation. Particularly in light of the fact that soap operas are increasingly targeting the adolescent viewer, the image portrayed on soap operas and the impact it appears to have is of great concern.