Deviant ERP response to spoken non-words among adolescents exposed to cocaine in utero

Concern for the impact of prenatal cocaine exposure (PCE) on human language development is based on observations of impaired performance on assessments of language skills in these children relative to non-exposed children. We investigated the effects of PCE on speech processing ability using event-related potentials (ERPs) among a sample of adolescents followed prospectively since birth. This study presents findings regarding cortical functioning in 107 prenatally cocaine-exposed (PCE) and 46 non-drug-exposed (NDE) 13-year-old adolescents.PCE and NDE groups differed in processing of auditorily presented non-words at very early sensory/phonemic processing components (N1/P2), in somewhat higher-level phonological processing components (N2), and in late high-level linguistic/memory components (P600).These findings suggest that children with PCE have atypical neural responses to spoken language stimuli during low-level phonological processing and at a later stage of processing of spoken stimuli.     

Trait anxiety and the neural efficiency of manipulation in working memory

The present study investigates the effects of trait anxiety on the neural efficiency of working memory component functions (manipulation vs. maintenance) in the absence of threat-related stimuli. For the manipulation of affectively neutral verbal information held in working memory, high- and low-anxious individuals (N = 46) did not differ in their behavioral performance, yet trait anxiety was positively related to the neural effort expended on task processing, as measured by BOLD signal changes in fMRI. Higher levels of anxiety were associated with stronger activation in two regions implicated in the goal-directed control of attention--that is, right dorsolateral prefrontal cortex (DLPFC) and left inferior frontal sulcus--and with stronger deactivation in a region assigned to the brain's default-mode network--that is, rostral-ventral anterior cingulate cortex. Furthermore, anxiety was associated with a stronger functional coupling of right DLPFC with ventrolateral prefrontal cortex. We interpret our findings as reflecting reduced processing efficiency in high-anxious individuals and point out the need to consider measures of functional integration in addition to measures of regional activation strength when investigating individual differences in neural efficiency. With respect to the functions of working memory, we conclude that anxiety specifically impairs the processing efficiency of (control-demanding) manipulation processes (as opposed to mere maintenance). Notably, this study contributes to an accumulating body of evidence showing that anxiety also affects cognitive processing in the absence of threat-related stimuli.     

Service without a smile: comparing the consequences of neutral and positive display rules

We used an experimental design to examine the intrapersonal and interpersonal processes through which neutral display rules, compared to positive display rules, influence objective task performance of poll workers and ratings provided by survey respondents of the poll workers. Student participants (N = 140) were trained to adhere to 1 of the 2 display rule conditions while delivering opinion surveys to potential patrons of an organization during a 40-min period. Results showed that, compared to positive display rules, neutral display rules resulted in less task persistence and greater avoidance behavior. These effects were mediated through a greater use of expression suppression. In addition, neutral display rules resulted in less positive respondent mood, which accounted for lower ratings of service quality and of overall favorability attitudes toward the sponsoring organization. The importance and ubiquity of neutral display rules are discussed, given the potential for positive and negative consequences at work.     

Measuring category intuitiveness in unconstrained categorization tasks

What makes a category seem natural or intuitive? In this paper, an unsupervised categorization task was employed to examine observer agreement concerning the categorization of nine different stimulus sets. The stimulus sets were designed to capture different intuitions about classification structure. The main empirical index of category intuitiveness was the frequency of the preferred classification, for different stimulus sets. With 169 participants, and a within participants design, with some stimulus sets the most frequent classification was produced over 50 times and with others not more than two or three times. The main empirical finding was that cluster tightness was more important in determining category intuitiveness, than cluster separation. The results were considered in relation to the following models of unsupervised categorization: DIVA, the rational model, the simplicity model, SUSTAIN, an Unsupervised version of the Generalized Context Model (UGCM), and a simple geometric model based on similarity. DIVA, the geometric approach, SUSTAIN, and the UGCM provided good, though not perfect, fits. Overall, the present work highlights several theoretical and practical issues regarding unsupervised categorization and reveals weaknesses in some of the corresponding formal models.     

Patient and Family Descriptions of Ethical Concerns

Abstract

Ethically challenging situations routinely arise in the course of illness and healthcare. However, very few studies have surveyed patients and family members about their experiences with ethically challenging situations. To address this gap in the literature, we surveyed patients and family members at three hospitals. We conducted a content analysis of their responses to open-ended questions about their most memorable experience with an ethical concern for them or their family member. Participants (N?=?196) described 219 unique ethical experiences that spanned many of the prevailing themes of bioethics, including the patient-physician relationship, end-of-life care, decision-making capacity, healthcare costs, and genetic testing. Participants focused on relational issues in the course of experiencing illness and receiving medical care and concerns regarding the patient-physician encounters. Many concerns arose outside of a healthcare setting. These data indicate areas for improvement for healthcare providers but some concerns may be better addressed outside of the traditional healthcare setting.     

Exploring the Experiences of Newcomer Women with Insecure Housing in Montréal Canada

The objective of this study was to explore housing insecurity among women newcomers to Montreal, Canada. Semi-structured interviews were conducted with 26 newcomer women who had experienced housing insecurity and five women’s shelter service providers. The primary cause of housing insecurity for newcomer women was inadequate income in the face of rapidly rising housing costs, coupled with unfamiliarity with the dominant culture and the local housing system. Specific events often served as tipping points for immigrant women—incidents that forced women into less secure housing. To avoid absolute homelessness, most women stayed with family, couch surfed, used women’s or educational residences, shared a room or an apartment, lived in hotels, single rented rooms, or transitional housing. These arrangements were often problematic, as crowded conditions, financial dependency, differing expectations and interpersonal conflicts made for stressful or exploitive relationships, which sometimes ended abruptly. Only two of the 26 women interviewed described their current living situation as stable. Based on the findings on the study, we recommend training for housing and immigration service providers, wrap-around services in terms of health, housing and immigration settlement programs that take into account a broad range of immigration statuses and transitional housing that caters to the specific needs of migrant women.     

Age at injury and long-term behavior problems after traumatic brain injury in young children

Objective: This study examined the effects of age at injury on the persistence of behavior problems and social skill deficits in young children with complicated mild to severe traumatic brain injury (TBI). Method: A concurrent cohort/prospective research design was used with repeated assessments of children with TBI (n = 82) or Orthopedic Injury (OI) (n = 114). Parents completed the Child Behavior Checklist, the Behavior Rating Inventory of Executive Functions, and the Preschool and Kindergarten Behavior Scales or the Home and Community Social and Behavior Scales shortly after injury to assess preinjury functioning, and at an extended follow-up an average of 38 months postinjury. Generalized linear modeling was used to examine the relationship of age at injury to the maintenance of behavior problems, and logistic regression was used to examine the persistence of clinically significant behavior problems. Results: At the extended follow-up, severe TBI was associated with significantly greater anxiety problems relative to the Group OI. With increasing time since injury, children who sustained a severe TBI at an earlier age had significantly higher levels of parent-reported symptoms of ADHD and anxiety than children who were older at injury. Conclusions: Findings suggest that longer-term treatment for behavior problems may be needed after severe TBI, particularly for those injured at an earlier age. (PsycINFO Database Record (c) 2012 APA, all rights reserved).     

Finding Female Fulfillment: Intersecting Role-Based and Morality-Based Identities of Motherhood, Feminism, and Generativity as Predictors of Women’s Self Satisfaction and Life Satisfaction

Focused on 113 U.S. mothers of college-aged daughters, we extend the existent role-based identity literature to address role- and morality-based identities and their ties to women’s fulfillment. Specifically, women’s identities as mothers, feminists, and generative individuals were assessed for their associations with each other, as well as their unique and combined associations with women’s self satisfaction and life satisfaction. Across the results, generativity yielded the greatest significance. Women with higher generativity identity report having higher self satisfaction and life satisfaction; women who were highly committed to mothering have stronger associations between generativity and life satisfaction. Women with strong generativity identities also tend to identify themselves as feminists. Feminist and mothering identity were not related to one another nor directly tied to satisfaction with one’s self nor life. Implications are discussed regarding continued assessment of role- and morality-based identity intersections as well as to the functions and limitations of the three identities and their assessment featured herein.