Motivation for physical activity in young adults with physical disabilities during a rehabilitation stay: a longitudinal test of self‐determination theory

We tested a self‐determination theory (SDT) process model during a 3 week physical activity rehabilitation stay among young adults with a physical disability (N = 44, M_age = 24.7, SD = 5.1). As hypothesized, perceived autonomy support positively predicted needs satisfaction at the end of the stay (r = .38, p < .01). Further, needs satisfaction was positively linked to changes in autonomous motivation for physical activity (r = .47, p < .01). Both changes in autonomous motivation and self‐efficacy were associated with physical activity increases over the stay (r = .57, p < .01 and r = .47, p < .01, respectively). Bootstrapping results supported the SDT process model, indicating a support for a development toward more self‐determined motivation in rehabilitation.     

The insidious (and ironic) effects of positive stereotypes

The present research demonstrates that positive stereotypes – though often treated as harmless, flattering and innocuous – may represent an especially insidious means of promoting antiquated beliefs about social groups. Specifically, across four studies (and one replication), the authors demonstrate that exposure to positive stereotypes towards African Americans (i.e., they are superior athletes) are at once both especially unlikely to arouse skepticism and emotional vigilance while also especially likely to produce antiquated and harmful beliefs towards members of the target group (compared to both baseline conditions and exposure to negative stereotypes), including beliefs in the biological (or “natural”) underpinnings of group differences and, ironically, the application of negative stereotypes.     

Perceptual Effect on Motor Learning in the Serial Reaction-Time Task

Although the Serial Reaction-Time Task has been an effective tool in studying procedural learning, there is still a debate as to whether learning in the task is effector-based, stimulus-based, or response-based. In this article, the authors contribute to this debate by contrasting response- and stimulus-based learning by manipulating them selectively and simultaneously. Results show that (a) participants learned response sequences in the absence of stimulus-specific perceptual sequence information but (b) not stimulus sequences without corresponding response information. In a third condition, response sequence and stimulus frequency information were in conflict, and each effect decreased learning in the other domain. Overall, our findings show that learning in these tasks is primarily motor-based, but it is also constrained by relatively salient perceptual information. Together with earlier findings in the literature, the findings also suggest a task and stimulus-arrangement-specific interaction between motor and perceptual learning, where relevance and salience of the specific information plays a crucial role.     

Simulating Personal Wealth in the Laboratory

During laboratory gambling tasks participants are not typically allowed to wager their personal wealth. Instead, wealth is simulated by telling participants they have been endowed with game tokens that will be later exchanged for money. Past research indicates that participants undervalue game tokens following this procedure, which leads to elevated risk taking compared to procedures that add saliency or realism to the monetary payoff. A between-subjects experiment tested whether showing a picture of money during the endowment instructions and repeating token-money exchange information during the session influenced participants' preference for risky and riskless options. The results showed no effect of the money picture. However, repeated token-money exchange information significantly decreased risk taking. Together with past studies, this finding suggests that endowment procedures might establish greater value in game tokens, and therefore better simulate personal wealth, when the eventual exchange between game tokens and money is made more salient to participants.     

Concordance Between the Quality of Maternal and Paternal Parenting Behavior Within Couples

There is compelling evidence that the quality of maternal and paternal parenting behavior bears critical importance for child development. Yet, less is known of the degree of similarity between maternal and paternal parenting behavior in families, and especially little is known about the factors that may explain variation in degrees of similarity. This article aims to examine (a) the concordance (similarity) between the quality of mothers’ and fathers’ interactive behavior with their child and (b) the sociodemographic determinants of this concordance. The sample included 74 families (mother, father, and their child). The quality of maternal and paternal interactive behavior was assessed independently, and rated with the Maternal Behavior Q-Sort (mother–infant, 12 months; D. R. Pederson et al., 1990) or the Mutually Responsive Orientation scale (father–toddler, 18 months; N. Aksan et al., 2006). The results indicated that the overall correlation between the quality of mothers’ and fathers’ behavior was moderate. The concordance was greater among higher socioeconomic status families or when interacting with a boy, but did not differ according to the presence or absence of siblings in the family.     

Marital Satisfaction and Quality of Father–Child Interactions: The Moderating Role of Child Gender

The authors aimed to investigate the prospective links between normative variation in fathers’ marital satisfaction and the observed quality of father–toddler interactions, as well as the moderating role of child gender in these associations. Sixty-three fathers reported on their marital satisfaction when their children were 15 months of age, and were observed interacting with their child at 18 months. The results suggested that marital satisfaction was positively associated with the quality of father–son interactions, while no relations emerged among fathers of girls. These findings reiterate the importance of marital relationships for the quality of fathers’ parenting, while reaffirming previous suggestions that the role of child gender in the marriage-parenting connections requires further investigation.     

Postural Mechanisms to Control Body Displacements in the Performance of Lateral Gaze Shifts

Medialateral postural control mechanisms (bodyweight distribution and center of pressure location) have been studied in static conditions. Our objective was to determine how these mechanisms are adjusted to perform voluntary movements, in our case 80° lateral gaze shifts at 0.125 Hz and 0.25 Hz. In healthy, young adults, we expected body marker (neck, lower back) and center of pressure displacements to be significantly greater in gaze shift conditions than in the stationary gaze condition. To explain these changes in center of pressure displacement, the amplitude contribution of both mechanisms was expected to increase significantly. All these results were found accordingly. Unexpectedly, the active contribution of the bodyweight distribution mechanism was negatively related to body marker displacements in the gaze shift conditions (ns in stationary condition). Moreover, changes in the contribution of the mechanisms were statistically weaker in effect size than changes in body displacement. However, the participants were not unstable because they performed the visual tasks as requested. We propose that the strength of medialateral postural control mechanisms may not only be strengthened to control challenging ML stance conditions but also slightly weakened to allow the performance of adequate body motions in ongoing tasks.     

Effect of Short-Term Training on Reaching Behavior in Infants: A Randomized Controlled Clinical Trial

The purpose of this study was to test the effect of short-term training on reaching behavior in infants at the onset of reaching. The study was a single-blind, parallel group design, randomized controlled clinical trial. Thirty healthy infants were randomly assigned to a social control group (n = 15) or a reaching training group (n = 15). Infants began the study up to 3 days after the onset of reaching and were assessed three times across 2 days: pretraining (before training), posttraining 1 (after 1 session of training), and posttraining 2 (after 3 sessions of training). The reaching training group received 3 sessions of training by a physical therapist while the control group received a similar amount of time sitting in the therapist's lap. The data were analyzed using repeated-measures analyses of variance, and independent-samples tests with Bonferroni adjustments. Short-term training resulted in increased frequency of object contacts, shorter and smoother reaches, and improved hand positioning. The few short training sessions likely provided opportunities for infants to explore and learn to select movements from their existing movement repertoire. These results demonstrate that adaptive changes in infants' novel behaviors can emerge rapidly, and highlight the need for increased understanding of how to most effectively time early interventions.