Laterality of the frontal aslant tract (FAT) explains externalizing behaviors through its association with executive function

We investigated the development of a recently identified white matter pathway, the frontal aslant tract (FAT) and its association with executive function and externalizing behaviors in a sample of 129 neurotypical male and female human children ranging in age from 7 months to 19 years. We found that the FAT could be tracked in 92% of those children, and that the pathway showed age‐related differences into adulthood. The change in white matter microstructure was very rapid until about 6 years, and then plateaued, only to show age‐related increases again after the age of 11 years. In a subset of those children (5–18 years; n = 70), left laterality of the microstructural properties of the FAT was associated with greater attention problems as measured by the Child Behavior Checklist (CBCL). However, this relationship was fully mediated by higher executive dysfunction as measured by the Behavior Rating Inventory of Executive Function (BRIEF). This relationship was specific to the FAT—we found no relationship between laterality of a control pathway, or of the white matter of the brain in general, and attention and executive function. These findings suggest that the degree to which the developing brain favors a right lateralized structural dominance of the FAT is directly associated with executive function and attention. This novel finding provides a new potential structural biomarker to assess attention deficit hyperactivity disorder (ADHD) and associated executive dysfunction during development.     

Four-dimensional spatial reasoning in humans

Human subjects practiced navigation in a virtual, computer-generated maze that contained 4 spatial dimensions rather than the usual 3. The subjects were able to learn the spatial geometry of the 4-dimensional maze as measured by their ability to perform path integration, a standard test of spatial ability. They were able to travel down a winding corridor to its end and then point back accurately toward the occluded origin. One interpretation is that the brain substrate for spatial navigation is not a built-in map of the 3-dimensional world. Instead it may be better described as a set of general rules for manipulating spatial information that can be applied with practice to a diversity of spatial frameworks.     

Effects of positive and negative moods on helping tasks having pleasant or unpleasant consequences

A field study investigated the effects of positive and negative moods on subjects' willingness to perform helping tasks having pleasant or unpleasant consequences. Results indicated that procedures designed to induce either positive or negative moods facilitate helping when the task has pleasant consequences, but tend to inhibit helping when the task is likely to be unpleasant. The findings are consistent with the notion that many everyday acts of kindness (altruism) are interpretable as a form of hedonism. The implications of these outcomes for an activation model of mood-induced altruism are discussed.     

The Associations of Greek and Religious Organization Participation with College Students' Social Well-Being and Purpose

Two online-survey studies examined the associations of Greek (i.e., sorority and fraternity) and religious (i.e., church or campus ministry) organization participation with college students' social well-being and sense of purpose. In study 1 (N = 281), religious organization membership (versus no membership) was associated with connectedness and purpose, but for Greek organizations the associations held only with respect to level of organization involvement. In study 2 (N = 426), Greek and religious organization membership were both associated with most social well-being and purpose indicators, but only Greek membership was linked to lower loneliness. As in study 1, level of involvement in Greek, but not religious, organizations was linked to social well-being. Hypothesized moderators of the associations between organization membership and the purpose and social well-being variables were not supported. We discuss implications for professionals who work with college students to promote well-being, and we present future research ideas.     

Programmed relaxation and reciprocal inhibition with psychotic children

This exploratory project illustrates, in contrast to earlier opinions, that psychotic children can be taught muscular relaxation through carefully structured training in physical relaxation. The learned relaxation behavior was apparently antagonistic to and effected a significant decrement in the generalized response of high anxiety which had previously led to aggressive outbursts. As a result of the exploratory project it was hypothesized that although systematic desensitization may be necessary for modifying specific patterns such as phobias, the generalized excitement response of psychotic and other severely disturbed children may be effectively and parsimoniously modified simply through general training in muscular relaxation.     

The Role of Emotion Regulation and Children's Early Academic Success

This study investigated the role of emotion regulation in children's early academic success using a sample of 325 kindergarteners. A mediational analysis addressed the potential mechanisms through which emotion regulation relates to children's early academic success. Results indicated that emotion regulation was positively associated with teacher reports of children's academic success and productivity in the classroom and standardized early literacy and math achievement scores. Contrary to predictions, child behavior problems and the quality of the student teacher relationship did not mediate these relations. However, emotion regulation and the quality of the student-teacher relationship uniquely predicted academic outcomes even after accounting for IQ. Findings are discussed in terms of how emotion regulation skills facilitate children's development of a positive student-teacher relationship as well as cognitive processing and independent learning behavior, all of which are important for academic motivation and success.     

Depression,Positive and Negative Affect,Optimism and Health-Related Quality of Life in Recently Diagnosed Multiple Sclerosis Patients: The Role of Identity,Sense of Coherence,and Self-efficacy

The study aimed to describe the levels of depression, positive and negative affect, optimism and health-related quality of life (HRQOL) in a group of recently diagnosed multiple sclerosis (MS) patients (up to 3 years since the diagnosis), taking into account gender, age, and disease duration differences, and to investigate the possible role of identity, sense of coherence (SOC), and self-efficacy in MS (SEMS) on patients’ depression, positive and negative affect, optimism, and HRQOL. The cross-sectional study involved 90 MS patients (61% women; age: M = 37, SD = 12) with an Expanded Disability Status Scale score between 1 and 4 (mild to moderate disability). Patients completed measures of depression (CESD-10), positive and negative affect (PANAS), optimism (LOT-R), HRQOL (SF-12), identity motives, SOC, and SEMS. Depression scores were near the cut-off level for clinically significant depressive symptoms, and negative affect was higher and HRQOL was lower than those in the general population. Women and younger patients reported better adjustment as time passes since the diagnosis. Results of multiple regressions indicated that higher SOC was related to higher mental health, lower negative affect and lower depression. Higher SEMS was predictive of greater positive affect and lower negative affect, whereas higher identity satisfaction was predictive of higher positive affect and optimism and lower depression. The results suggest the usefulness of addressing identity redefinition, SOC and self-efficacy in psychological interventions aimed at promoting patients’ adjustment to MS.