Linking Childhood Maltreatment to Substance Use in College Students: The Mediating Role of Self-Worth Contingencies

This study investigated the link between childhood maltreatment and substance use, focusing on examining contingencies of self-worth (CSWs) as mediators among college students (N?=?513). Structural equation modeling indicated that childhood sexual abuse among females was related to lower God's love CSW, which in turn was related to higher levels of cigarette, marijuana, and other illicit drug use, supporting the mediational role of God's love CSW. Correlational analyses demonstrated that, for both male and female students, external contingency of appearance was related to higher substance use, whereas internal contingencies of God's love and virtue were related to lower substance use. The findings highlight the protective role of internal CSWs in substance use among females with childhood sexual abuse.     

Childhood Maltreatment,Adult Attachment,and Depression as Predictors of Parental Self-Efficacy in At-Risk Mothers

Childhood abuse and neglect can have far-reaching effects on adult relationships, mental health, and parenting. This study examined relations between maltreatment types, anxious and avoidant adult attachment, maternal depression, and parental self-efficacy in a community sample of 76 at-risk mothers. After controlling for other forms of maltreatment, emotional abuse uniquely predicted higher levels of anxious attachment and maternal depression. Structural equation modeling revealed that childhood maltreatment predicted lower parental self-efficacy through indirect pathways involving anxious attachment and depression. Specifically, maltreatment's influence on maternal depression was mediated by attachment anxiety, while its influence on parental self-efficacy was mediated by depressive symptoms. Results are discussed in terms of attachment theory and ways in which parental self-efficacy contributes to adaptive caregiving behavior.     

Children with Disabilities

Abstract

Children in out-of-home care due to abuse and neglect are at disproportionately high risk for disabling conditions. The reasons for the over-representation of children with disabilities in the child welfare system are reviewed and discussed in this chapter. Factors discussed include impact of abuse and neglect, the impact risk factors such as exposure to community and domestic violence and poverty, risk of abuse or neglect associated with disability, and child welfare system factors. In addition, the need for greater efficacy in identification of disability, identification of service needs, and linkage with and delivery of services to serve the needs of children with disabilities in out-of-home care is addressed. Recommendations for policy review at State and Federal levels are offered along with direction for future research.     

Preface

Abstract

Child victimization is a serious and on-going problem in the United States and throughout the world. In 2000, an estimated 900,000 children were victims of abuse and neglect in the United States. New and different responses to child maltreatment will have to be developed and implemented in response to the increasingly diverse contexts and situations within which maltreatment occurs. Emerging trends in adult-child boundary violations are explored within this volume from a cross-section of disciplines, including law, sociology, criminal justice, psychology, and health services. The selections analyze issues critical to child maltreatment and offer intriguingly different perspectives of present and future issues related to child abuse.     

What We Know—and Don't Know—About Preventing Child Maltreatment

Abstract

Although child maltreatment is routinely acknowledged as a serious social problem, it remains widespread, raising questions about how prevention efforts can be improved. Following a review of theory and research relevant to prevention programming, the two dominant models of child abuse prevention-child empowerment and parent education-are examined, emphasizing both those factors that appear to contribute to program success (e.g., early intervention, sufficient time commitments, cultural sensitivity) and weaknesses in current efforts (e.g., poor implementation). Although underutilized, broader social and system-level reforms, including social policy and media initiatives, hold promise for prevention. Ways in which to leverage these tools are explored. Additional research is urged to explore assumptions on which programs are based, as well as to conduct more rigorous evaluation of current programs. The article concludes that a sustained commitment to prevention efforts aimed at child abuse and neglect is required.     

Hemispatial neglect and serial order in verbal working memory

Working memory refers to our ability to actively maintain and process a limited amount of information during a brief period of time. Often, not only the information itself but also its serial order is crucial for good task performance. It was recently proposed that serial order is grounded in spatial cognition. Here, we compared performance of a group of right hemisphere-damaged patients with hemispatial neglect to healthy controls in verbal working memory tasks. Participants memorized sequences of consonants at span level and had to judge whether a target consonant belonged to the memorized sequence (item task) or whether a pair of consonants were presented in the same order as in the memorized sequence (order task). In line with this idea that serial order is grounded in spatial cognition, we found that neglect patients made significantly more errors in the order task than in the item task compared to healthy controls. Furthermore, this deficit seemed functionally related to neglect severity and was more frequently observed following right posterior brain damage. Interestingly, this specific impairment for serial order in verbal working memory was not lateralized. We advance the hypotheses of a potential contribution to the deficit of serial order in neglect patients of either or both (1) reduced spatial working memory capacity that enables to keep track of the spatial codes that provide memorized items with a positional context, (2) a spatial compression of these codes in the intact representational space.     

A novel approach to mechanical foot stimulation during human locomotion under body weight support

Input from the foot plays an essential part in perceiving support surfaces and determining kinematic events in human walking. To simulate adequate tactile pressure inputs under body weight support (BWS) conditions that represent an effective form of locomotion training, we here developed a new method of phasic mechanical foot stimulation using light-weight pneumatic insoles placed inside the shoes (under the heel and metatarsus). To test the system, we asked healthy participants to walk on a treadmill with different levels of BWS. The pressure under the stimulated areas of the feet and subjective sensations were higher at high levels of BWS and when applied to the ball and toes rather than heels. Foot stimulation did not disturb significantly the normal motor pattern, and in all participants we evoked a reliable step-synchronized triggering of stimuli for each leg separately. This approach has been performed in a general framework looking for “afferent templates” of human locomotion that could be used for functional sensory stimulation. The proposed technique can be used to imitate or partially restore surrogate contact forces under body weight support conditions.     

Effect of Sensory Deprivation on Maximal Force Abilities from Local to Non-local Digits

Abstract

The present study investigates the effect of sensory deprivation of the index and middle finger on motor function of all digits during maximal voluntary force production tasks. A total of 27 subjects performed maximal isometric pressing tasks by using different instructed finger combinations. Subjects completed the same tasks in two visits: a control visit when they had normal sensory feedback in all fingers, and an anesthesia visit when digital nerve blocks were performed on their right index and middle fingers. We evaluated three aspects of motor adaptation on both local (anesthetized) and non-local (non-anesthetized) digits during maximal force production: (1) task-relevant and overall force magnitude, (2) force directional application, and (3) digital individuation and force sharing. Our results indicate that selective digital anesthesia resulted in decreased maximal force magnitude, changed direction of force production, and significant changes extended to non-local digits. The motor weakness and inefficiency revealed in the non-local digits implies that sensory information from each digit can be shared across the digits to assist motor execution within the same hand.     

Spatial probability cuing and right hemisphere damage

In this experiment we studied statistical learning, inter-trial priming, and visual attention. We assessed healthy controls and right brain damaged (RBD) patients with and without neglect, on a simple visual discrimination task designed to measure priming effects and probability learning. All participants showed a preserved priming effect for item color. Contrary to healthy controls and RBD participants without neglect, RBD participants with neglect did not show positional priming and both RBD groups learned the underlying spatial probability distribution of target locations to a lesser degree. To see if the latter deficiency could be improved, we tested a patient with long standing chronic spatial neglect on three separate days and observed improved identification times for left sided, high probability, targets. In summary, we found preservation of priming per se in people with spatial neglect. However, this was only clearly demonstrable for color priming and not for positional priming. Associated with this impairment was a difficulty in learning the overall statistical structure of target locations. In a patient with severe persistent neglect we were able to demonstrate that the deficit in statistical learning was not absolute, as this subject improved his identification times for targets appearing in high probability regions of the test display.