Sleep and the time course of motor skill learning

Growing evidence suggests that sleep plays an important role in the process of procedural learning. Most recently, sleep has been implicated in the continued development of motor-skill learning following initial acquisition. However, the temporal evolution of motor learning before and after sleep, the effects of different training regimens, and the long-term development of motor learning across multiple nights of sleep remain unknown. Here, we report data for subjects trained and retested on a sequential finger-tapping task across multiple days. The findings demonstrate firstly that following initial training, small practice-dependent improvements are possible before, but not following the large practice-independent gains that develop across a night of sleep. Secondly, doubling the quantity of initial training does not alter the amount of subsequent sleep-dependent learning that develops overnight. Thirdly, the amount of sleep-dependent learning does not correlate with the amount of practice-dependent learning achieved during training, suggesting the existence of two discrete motor-learning processes. Finally, whereas the majority of sleep-dependent motor-skill learning develops during the first night of sleep following training, additional nights of sleep still offer continued improvements.     

Differential effects of massage and heelstick procedures on transcutaneous oxygen tension in preterm neonates

The present study investigated the differential effects of heelsticks and tactile-kinesthetic massage on transcutaneous oxygen tension (TcPO₂) in preterm infants. The sample was comprised of 37 stabilized preterm neonates from the Neonatal Intensive Care Unit. During the heelstick procedure, TcPO₂ significantly declined an average of 14 mmHg. When compared to the tactile-kinesthetic massage, TcPO₂ levels during the heelstick (M = 39.8) were significantly lower than during the stimulation (M = 72.8). Mean TcPO₂ levels remained clinically safe during the four massage sessions evaluated. The TcPO₂ levels during kinesthetic stimulation were somewhat more varied, and movement and pressurization of the TcPO₂ electrode were investigated as possible artifactual explanations for this phenomenon. Overall, the findings indicate that social forms of touch such as tactile-kinesthetic massage do not appear to have a medically compromising effect on TcPO₂ in the preterm neonate. These findings are evaluated in relation to the “minimal touch” policy, and implications for future handling of the stabilized preterm neonate are discussed.     

The Sacred Dance of the Sexes

Problems inherent in the patriarchal system have led to the universal problem of the so-called battle of the sexes. The last two hundred years of liberation movements lead to the conclusion that for any such movement finally to succeed, the patriarchal system must be outgrown. Six methods of dealing with the problem are reviewed and all are found variously wanting, though some offer promise. A solution is offered. The differences between men and women must be honored and true partnership developed. A method by which this can be achieved is described.     

Newborns of mothers with depressive symptoms are less expressive

The facial expressions of 40 newborns of mothers with depressive symptoms (n = 20) and of nondepressive mothers (n = 20) were recorded during the Brazelton Neonatal Behavior Assessment Scale and during the modeling of happy, sad, and surprised faces. Infants of mothers with depressive symptoms demonstrated inferior performance on the orientation cluster of the Brazelton scale and showed fewer interest and more precry expressions during the Brazelton. During the facial expression modeling, they showed less orientation and fewer facial expressions in response to the modeled happy and surprise facial expressions.     

Multifactorial pathways facilitate resilience among kindergarteners at risk for dyslexia: A longitudinal behavioral and neuroimaging study

Recent efforts have focused on screening methods to identify children at risk for dyslexia as early as preschool/kindergarten. Unfortunately, while low sensitivity leads to under‐identification of at‐risk children, low specificity can lead to over‐identification, resulting in inaccurate allocation of limited educational resources. The present study focused on children identified as at‐risk in kindergarten who do not subsequently develop poor reading skills to specify factors associated with better reading outcomes among at‐risk children. Early screening was conducted in kindergarten and a subset of children was tracked longitudinally until second grade. Potential protective factors were evaluated at cognitive‐linguistic, environmental, and neural levels. Relative to at‐risk kindergarteners with subsequent poor reading, those with typical reading outcomes were characterized by significantly higher socioeconomic status (SES), speech production accuracy, and structural organization of the posterior right‐hemispheric superior longitudinal fasciculus (SLF). A positive association between structural organization of the right SLF and subsequent decoding skills was found to be specific to at‐risk children and not observed among typical controls. Among at‐risk children, several kindergarten‐age factors were found to significantly contribute to the prediction of subsequent decoding skills: white matter organization in the posterior right SLF, age, gender, SES, and phonological awareness. These findings suggest that putative compensatory mechanisms are already present by the start of kindergarten. The right SLF, in conjunction with the cognitive‐linguistic and socioeconomic factors identified, may play an important role in facilitating reading development among at‐risk children. This study has important implications for approaches to early screening, and assessment strategies for at‐risk children.     

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.     

When do errors in reinforcer delivery affect learning? A parametric analysis of treatment integrity

Treatment integrity is the extent to which components of an intervention are implemented as intended (Gresham, 1989). Recent behavior-analytic literature has begun to evaluate the effects of reduced-treatment integrity on the efficacy and efficiency of skill-acquisition interventions. This study extended the current literature on the effects of errors of omission and commission of reinforcer delivery by replicating and extending Hirst and DiGennaro Reed (2015). Using a randomized-control group design, we compared undergraduate student participants' acquisition of conditional discriminations in a parametric analysis of different error values. A computer program erred in reinforcer delivery on 0%, 5%, 10%, 15%, 20%, 25% and 50% of trials. The purpose of the current study was to identify which levels of reduced integrity slowed or prevented acquisition. Our data replicated the findings of Hirst and DiGennaro Reed, and extended parametric analyses by identifying that errors in reinforcer delivery occurring on 15% or fewer trials (i.e., 85% integrity) were unlikely to prevent participants' responding from meeting the mastery criterion. These results could inform future research on how treatment-integrity errors change behavior-analytic procedures and the effects on skill acquisition for consumers of applied behavior analysis.     

Multicultural Counseling: A 10‐Year Content Analysis of the Journal of Counseling & Development

The emphasis on multicultural counseling during the past 20 years has influenced the increase in scholarly publications on this topic. The authors report the findings of a content analysis of 102 multicultural‐centered articles. Journal of Counseling & Development issues spanning 1990–2001 were evaluated. Findings are reported for methodology, populations discussed, applied settings, and authors' roles and institutional affiliations. Findings indicate that there has been an increase of multicultural‐focused publications since 1990 and that publications are more exploratory and developmental rather than pathology‐oriented.     

Selves in contact: how integrating perspectives on sociocultural selves and intergroup contact can inform theory and application on reducing inequality

Research within cultural psychology and intergroup relations represent two, often separate and distinct, approaches to examining social groups—including outcomes and experiences that define and distinguish group membership and its consequences. Often, social group membership (e.g., race/ethnicity, gender, and social class) is tied to persistent and pervasive divides—separations that mark the difference in who attends college, stays in science, technology, engineering, and mathematics (STEM) fields, and even views personal and societal events (e.g., microaggressions, police‐involved shootings) as involving bias. Addressing such complex and often divisive issues, psychological science has contributed theoretical and applied insights to mitigate social differences and inequalities experienced by historically disadvantaged social groups. The present paper integrates research on cultural psychology and intergroup relations by (a) reviewing empirical findings on sociocultural selves and intergroup contact and (b) considering how merging approaches from these literatures, using a selves in contact framework, can inform and elaborate theoretical perspectives and applications aimed at reducing inequality.     

Comparison of task interspersal ratios on efficiency of learning and problem behavior for children with autism spectrum disorder

The current study extends the literature on task interspersal (TI) by comparing the effects of four different TI ratios on the efficiency of skill acquisition and on levels of problem behavior in children with autism spectrum disorder and related disorders. The four ratios of TI were 3:1, 1:1, 1:3, and 0:1 mastered‐to‐acquisition tasks. An adapted alternating treatments design was implemented to compare the cumulative number of stimuli mastered, mean training time to mastery, rate of acquisition, and the level of problem behavior. The results showed that the 0:1 condition was the most efficient intervention procedure for all four participants. In addition, TI did not lead to a greater reduction in levels of problem behavior.