Changes in step variability of new walkers with typical development and with Down syndrome

Models of human gait are based on adult locomotion. C. E. Bauby and A. D. Kuo (2000) proposed that adults rely on passive mechanisms at the spinal level to control motion in the anteroposterior direction and rely on direct monitoring of postural control in the lateral direction. The authors' purpose in this study was to determine if that model applies to control at the onset of walking in typically developing toddlers (n = 9) and in toddlers with Down syndrome (n = 6). Their longitudinal data suggested that toddlers control gait in a distinctly different manner than adults do. An adult pattern of control emerges with experience. In addition, the effect of experience on the emergence of that pattern is magnified by task-specific early intervention. The present data support the emergence and discovery of efficient patterns of control in this fundamental human behavior.     

Anxiety symptomatology: the association with distress tolerance and anxiety sensitivity

Research focused on psychological risk factors for anxiety psychopathology has led to better conceptualization of these conditions as well as pointed toward preventative interventions. Anxiety sensitivity (AS) has been well-established as an anxiety risk factor, while distress tolerance (DT) is a related construct that has received little empirical exploration within the anxiety psychopathology literature. The current investigation sought to extend the existing literature by examining both DT and the relationship between DT and AS across a number of anxiety symptom dimensions, including panic, generalized anxiety, social anxiety, and obsessive-compulsive anxiety. Participants (N = 418) completed a number of measures that assessed DT, AS, anxiety symptomatology, and negative affect. Findings indicated that DT was uniquely associated with panic, obsessive compulsive, general worry, and social anxiety symptoms, but that DT and AS were not synergistically associated with each of these symptom dimensions. These findings indicate that an inability to tolerate emotional distress is associated with an increased vulnerability to experience certain anxiety symptoms.     

Parental Influence on Children with Attention-Deficit/Hyperactivity Disorder: I. Relationships Between Parent Behaviors and Child Peer Status

We examined associations between children’s peer relationships and (a) their parents’ social competence as well as (b) their parents’ behaviors during the children’s peer interactions. Participants were families of 124 children ages 6–10 (68% male), 62 with ADHD and 62 age- and sex-matched comparison youth. Children’s peer relationships were assessed via parent and teacher report, and sociometric nominations in a lab-based playgroup. Parental characteristics were assessed via parent self-report and observations of behavior during their child’s playgroup. After statistical control of relevant covariates, parents of children with ADHD reported poorer social skills of their own, arranged fewer playdates for their children, and displayed more criticism during their child’s peer interaction than did parents of comparison youth. Parents’ socialization with other parents and facilitation of the child’s peer interactions predicted their children having good peer relationships as reported by teachers and peers, whereas parental corrective feedback to the child and praise predicted poor peer relationships. Parents’ ratings of their child’s social skills were positively associated with ratings of their own social skills, but negatively associated with criticism and facilitation of the child’s peer interactions. Relationships between parental behaviors and peer relationships were stronger for youth with ADHD than for comparison youth. The relevance of findings to interventions is discussed.     

Physical discipline,escalation, and child abuse potential: psychometric evidence for the Analog Parenting Task

Data from three studies provide new evidence to support the validity of the Analog Parenting Task (APT) as an instrument to assess risk for harsh, physically aggressive parenting. In this series of studies, there was a strong association between APT scores of expected use and escalation of discipline strategies and self‐reported disciplinary attitudes. APT scores were also associated with physical abuse potential as assessed by both a well‐established measure of child abuse potential (Child Abuse Potential Inventory) and another instrument designed specifically for use in pre‐parent populations (e.g., Adult–Adolescent Parenting Inventory‐2). This study provides new psychometric evidence to support the use of the APT to assess harsh parenting. Additionally, these data highlight the connection between acceptance and use of physical disciplinary strategies, propensity for disciplinary escalation, and risk for abuse perpetration. The findings are discussed in the context of Milner's Social Information Processing model [Milner, 2003] of abuse, which suggests that parental selection of disciplinary responding and the monitoring of disciplinary responding are key events in the disciplinary process. The APT may prove a useful adjunct to more commonly used self‐report measures to allow for multimethod assessment of risk for punitive parenting. Aggr. Behav. 36:251–260, 2010. © 2010 Wiley‐Liss, Inc.     

Role of Researchers in the Ethical Conduct of Research: A Discourse Analysis From Different Stakeholder Perspectives

The ethical conduct of research rests largely on researchers, and as such, an understanding of how they perceive and enact their role in research is paramount. However, the literature around ethics and research mostly focuses on researchers’ perception of Research Ethics Boards (REB; also known as Institutional Review Boards) roles and functions. To fill that gap, we analyzed the perceptions of researchers, REB members, and influential parties (n = 40) about researchers’ role in the ethical conduct of research through discourse analysis. Three discourses emerged: researchers as reflective practitioners, protectors of participants, and technicians. Understanding the commonalities and differences among the discourses may foster a shared and compelling institutional research culture.     

Religious Coping and Quality of Life Among Severely Ill Lung Patients in a Secular Society

This survey study investigated the prevalence of religious beliefs and religious coping and possible associations between religious factors and quality of life (QoL) among a group of severely ill lung patients (lung cancer and chronic obstructive pulmonary disease) in Denmark (N = 111). Almost two thirds (64.8%) reported having some belief in God and/or a spiritual power. Patients who reported believing in God and patients who believed in God and a spiritual power reported better QoL than patients who reported that they believed in a spiritual power only. Religious coping was prevalent; for positive religious coping strategies, those used from least to most often, respectively, were invoked 15% to 37% of the time; for negative religious coping strategies the percentages were 3% to 16%. Negative religious coping was associated with lower QoL (β = ?0.320, p < .006), whereas no associations were found between positive religious coping and QoL. Results are discussed in relation to the cultural context of secularized societies like the Scandinavian countries.     

Demand Transitions and Sustained Attention

A recent report by the National Research Council (Huey & Wickens, 1993) has identified transitions in task demand as an important dimension for study in vigilance research. This experiment tested the possibility that the effects of such transitions follow a relatively simple psychophysical rule—they are characterized by contrast effects. Transitions in task demand were achieved by shifting subjects from single-task to dual-task monitoring and vice versa. These transitions produced changes in subjects' sensing and decision-making functions that were far more intricate than simple contrast effects. The demand transition issue offers a complex research challenge on both basic and applied levels and warrants further investigation.     

Movement-Produced Feedback as a Mechanism For The Temporal Anticipation of Motor Responses

That part of the input hypothesis of motor timing behavior which postulates that movement-produced feedback can serve as a mechanism for the temporal anticipation of motor responses was tested. 32 male college Ss temporally anticipated (no preview) the coincidence of a moving pointer with a stationary one and executed the timing response with his right hand while either a high (HFB) or low (LFB) level of movement-produced feedback was indirectly manipulated in the left arm. The HFB group temporally anticipated with greater accuracy than the LFB group which supported that part of the input hypothesis being tested. Apparently, Ss were relying on proprioceptive feedback about the position of their left arm movement to cue the timing response of their right hand.