Threshold recognition of phantom-contour objects requires constant contrast velocity

Recognition of phantom objects--those with contours defined by rapid contrast reversal of adjacent fields of dark and light random dots--was investigated under conditions of abrupt or ramped onset and offset. Discrimination contrast thresholds were determined for a random-dot phantom letter in four possible orientations. For abrupt onset or offset, thresholds were almost independent of the duration of presentation time, over a range that varied tenfold, from 34-340 msec. However, when the onset and offset were shaped by a triangular envelope, thresholds were raised, so that form blindness occurred even when peak d ot contrasts exceeded 60%. Also under ramped onset and offset conditions, threshold contrast varied strictly linearly with stimulus duration in all subjects, suggesting a new construct--contrast velocity, the rate of change of contrast critical for phantom-object recognition.     

Psychological trauma and PTSD symptoms as predictors of substance dependence treatment outcomes

Psychological trauma and post-traumatic stress disorder (PTSD) may complicate and reduce the effectiveness of treatment for substance use disorders (SUDs). This study assessed trauma history and symptoms of simple and complex PTSD at baseline in a randomized trial of contingency management (CM) compared to standard treatment (ST) with 142 cocaine- or heroin-dependent outpatients. History of exposure to each of eight types of psychological trauma was unrelated to treatment outcome, except for witnessed assaults and emotional abuse. Complex PTSD symptoms were inversely associated with short-term treatment outcomes, and PTSD symptoms were positively related to long-term outcome, independent of the effects of demographics, psychological distress, baseline substance use status, and treatment modality. Complex PTSD symptoms warrant further study as a potential negative prognostic factor in SUD interventions.     

Beyond Compliance: Mother–Child Joint Action During a “Do” Task

Much of the literature on parent-toddler interactions does not account for the lack of independence in data. This investigation used a theory and method appropriate for examining the moment-to-moment patterns of joint actions between mothers and toddlers during a “do” task. Using contextual action theory to guide a mixture of methods, we observed and described the joint goal-directed series of actions of mothers and their toddlers as well as mothers’ intentions, meanings, and emotions they ascribed to their actions. Additionally, the associations between the patterns of joint mother-toddler actions and children’s negative emotionality were examined. Thirty mothers and their children participated in the study. Data collection included video-recorded activity, video recall interviews, and self-report questionnaires. Quantitative and qualitative analysis of the data revealed that (a) children were mostly engaged in the task alongside with their mothers’ on-going involvement; (b) mothers attributed a range of meanings to their interactions with their children; and (c) mothers’ perceptions of their toddlers’ dimensions of emotional negativity were associated with the organization of dyads’ joint goal directed actions—both when children were engaged in the task or self-focused.     

The Difficulties in Emotion Regulation Scale Short Form (DERS-SF): Validation and Replication in Adolescent and Adult Samples

Emotion dysregulation often emerges early in development and is a core feature of many psychological conditions. The Difficulties in Emotion Regulation Scale (DERS) is a well validated and widely used self-report measure for assessing emotion regulation problems among adolescents and adults. The DERS has six subscales with five to eight items each (36 total), suggesting multiple questions may assess similar underlying constructs. In an effort to reduce respondent burden and streamline this widely-used instrument, we created a short-form version of the DERS (DERS-SF) using confirmatory factor analysis on data from three adolescent (n?=?257) and two adult samples (n?=?797). Scores on the DERS-SF yielded similar correlation patterns relative to the full measure, ranging from .90 to .98 and reflecting 81–96 % shared variance. This instrument maintains the excellent psychometric properties and retains the total and subscale scores of the original measure with half the items.     

Effects of Public Posting and Goal Setting on Team Performance in a Residential Setting

Treatment integrity has been shown to be of critical importance in behavioral programming. The extent to which tasks are completed as designed often has a direct effect on the quality of care provided to clients. Most research on treatment integrity has focused on implementation of interventions. The current study used a multiple baseline design across behaviors to evaluate the effects of public posting of team performance data and goal setting on data collection by direct‐care staff. Results of the current study suggest that public posting and goal setting may be effective strategies to improve staff data collection. Copyright © 2016 John Wiley & Sons, Ltd.     

Correction to: Unique Contributions of Maternal Prenatal and Postnatal Emotion Dysregulation on Infant Respiratory Sinus Arrhythmia

Research on Child and Adolescent Psychopathology -     

Unique Contributions of Maternal Prenatal and Postnatal Emotion Dysregulation on Infant Respiratory Sinus Arrhythmia

Research on Child and Adolescent Psychopathology - Prenatal intrauterine exposures and postnatal caregiving environments may both shape the development of infant parasympathetic nervous system...