Prior experience with negative spectral correlations promotes information integration during auditory category learning

Complex sounds vary along a number of acoustic dimensions. These dimensions may exhibit correlations that are familiar to listeners due to their frequent occurrence in natural sounds—namely, speech. However, the precise mechanisms that enable the integration of these dimensions are not well understood. In this study, we examined the categorization of novel auditory stimuli that differed in the correlations of their acoustic dimensions, using decision bound theory. Decision bound theory assumes that stimuli are categorized on the basis of either a single dimension (rule based) or the combination of more than one dimension (information integration) and provides tools for assessing successful integration across multiple acoustic dimensions. In two experiments, we manipulated the stimulus distributions such that in Experiment 1, optimal categorization could be accomplished by either a rule-based or an information integration strategy, while in Experiment 2, optimal categorization was possible only by using an information integration strategy. In both experiments, the pattern of results demonstrated that unidimensional strategies were strongly preferred. Listeners focused on the acoustic dimension most closely related to pitch, suggesting that pitch-based categorization was given preference over timbre-based categorization. Importantly, in Experiment 2, listeners also relied on a two-dimensional information integration strategy, if there was immediate feedback. Furthermore, this strategy was used more often for distributions defined by a negative spectral correlation between stimulus dimensions, as compared with distributions with a positive correlation. These results suggest that prior experience with such correlations might shape short-term auditory category learning.     

Mental health attitudes among Middle Eastern/North African individuals in the United States

ABSTRACT

Middle Eastern/North African (MENA) individuals may have heightened risk for developing mental health problems due to unique cultural stressors. However, traditional cultural and religious practices and beliefs socialised within the family environment may reduce the likelihood of seeking mental health services. This qualitative study aimed to better understand the intersection of cultural, religious, and mental health attitudes among MENA individuals. Semi-structured telephone interviews were conducted with MENA adults who had received therapy services (N?=?13) and were analysed for emergent themes. Respondents reported lack of understanding of mental illness within their communities, and prominent levels of perceived and self-stigma. Families and religious practices/beliefs played an important role in responding to mental illness. Results suggest that incorporating psychoeducation and community awareness campaigns alongside religious services may help to reduce barriers to receiving mental health treatment.     

Self-Reported Parenting of Clinic-Referred and Non-referred Mexican American Mothers of Young Children

Behavioral parent training (BPT) interventions for child behavior problems have been based on decades of research that demonstrate links between particular parent behaviors and child externalizing problems. However, the majority of this research has been conducted with European-American (EA) families, and less is known about whether these findings can be generalized to Mexican Americans (MAs). In the current study, we investigated self-reported parenting practices that have been associated with externalizing behavior problems among EA families (harsh parenting, inconsistency, and low parental warmth), to determine if those practices can also differentiate MA mothers whose young children have clinically significant behavior problems from MA mothers whose children do not have behavior problems. Participants were 115 MA families with young children, 58 with a child with clinically significant behavior problems and 57 with a child in the normal range for such problems. Results indicated that MA mothers whose children have behavior problems self-reported significantly less warmth and consistency and more harsh parenting compared to parents whose children’s behavior was in the normal range. These findings indicate that parenting behaviors that are associated with externalizing behavior problems among EA families are associated with the same problems among MA families with young children, suggesting that parent training interventions designed to target these behaviors are also likely to be relevant to MA families with children in this age range. However, findings also indicate that parenting behaviors differ depending on acculturation level, suggesting that BPT programs must respond to variation in normative parenting practices for MA families.     

Psychological Science Can Improve Diagnostic Decisions

Contents:
Introduction and Scope, p.1
Components of Diagnostic Decision Making, p.4
Statistical Machinery, p.5
Examples of Enhanced Descision Making, p.10
Conclusion and Discussion, p.20
Acknowledgements, p.23
References, p.23
Appendix: Some Concepts of Possibility, p.25     

Coparental Affect,Children's Emotion Dysregulation,and Parent and Child Depressive Symptoms

Children's emotion dysregulation and depressive symptoms are known to be affected by a range of individual (parent, child) and systemic (parent–child, marital, and family) characteristics. The current study builds on this literature by examining the unique role of coparental affect in children's emotion dysregulation, and whether this association mediates the link between parent and child depressive symptoms. Participants were 51 mother–father–child triads with children aged 7 to 12 (M age = 9.24 years). Triads discussed a time when the child felt sad and a time when the child felt happy. Maternal and paternal displays of positive affect were coded, and sequential analyses examined the extent to which parents were congruent in their displays of positive affect during the emotion discussions. Results indicated that interparental positive affect congruity (IPAC) during the sadness discussion, but not the happiness discussion, uniquely predicted parent‐reported child emotion dysregulation, above and beyond the contributions of child negative affect and parental punitive reactions. The degree of IPAC during the sadness discussion and child emotion dysregulation mediated the association between maternal, but not paternal, depressive symptoms and child depressive symptoms. Findings highlight the unique role of coparental affect in the socialization of sadness in youth and offer initial support for low levels of IPAC as a risk factor for the transmission of depressive symptoms in youth.     

<Emphasis Type="Italic">DRD4</Emphasis> Variants Moderate the Impact of Parental Characteristics on Child Attention-Deficit Hyperactivity Disorder: Exploratory Evidence from a Multiplex Family Design

Parental ADHD symptomatology and related impairments have been robustly associated with youth ADHD across decades of work. Notably, these factors may impede typical development of child self-regulation capabilities through both neurobiological and interpersonal processes. High heritability of estimates for the disorder further suggest that these effects are likely genetically-mediated, at least in part. Variation within the dopamine D4 receptor gene (DRD4) has been shown to moderate parental influences on youth ADHD. Use of a multiplex family design (i.e., samples of families that included multiple affected members) may facilitate identification of additional gene variants of interest and advance understanding of gene-environment interplay in regard to parenting. Thirty multiplex families consisting of 114 individuals (66 youth, 48 parents) completed a multi-stage, multi-informant diagnostic and neurocognitive assessment, measures of parenting, and provided saliva samples for DNA analyses. Sanger sequencing of the DRD4 gene yielded 16 rare variants; a polygenic risk score was computed for both parents and youth. Generalized estimating equations (GEE) examined the predictive effects of parental ADHD symptoms, parental neurocognitive functioning, and poor parenting dimensions on youth ADHD as well as moderation of these effects by parental and youth DRD4 variants. Findings indicated that parental DRD4 variants moderated the impact of parental ADHD and neurocognitive functioning on youth ADHD symptoms. Youth DRD4 variants moderated the impact of parental inconsistent discipline on child ADHD. In all cases, stronger associations were observed for those individuals with more risk variants. These exploratory findings highlight the potential utility of a multiplex family design for examining the interplay between parent and child characteristics in predicting youth outcomes.     

Genetic Counseling Considerations in the Evaluation of Families for Lynch Syndrome��A Review

Lynch syndrome is the most common hereditary colorectal cancer syndrome and the most common cause of hereditary endometrial cancer. Identifying and evaluating families for Lynch syndrome is increasing in complexity due to the recognition that: family history-based clinical criteria lack sensitivity and specificity; genetic testing for Lynch syndrome continues to evolve as understanding of the molecular mechanisms underlying it evolves; and the Lynch syndrome phenotype encompasses multiple organ systems and demonstrates overlap with other hereditary cancer syndromes. This document is a summary of considerations when evaluating individuals and families for Lynch syndrome, including information on cancer risks, diagnostic criteria, tumor and genetic testing strategies, and the management of individuals with this condition.