Callous-Unemotional Traits as Unique Prospective Risk Factors for Substance Use in Early Adolescent Boys and Girls

Youth with elevated conduct disorder (CD) symptoms who also have callous-unemotional (CU) traits exhibit more antisocial behavior than youth without CU traits. However, evidence regarding whether CU traits increase risk of substance use over and above CD symptoms, and whether these associations differ for boys and girls, is scarce. Using the Developmental Pathways Project sample of 521 middle school students, we examined whether adolescent- and parent-reported CU traits measured in 6th grade prospectively predicted the onset and recurrence of substance use and use-related impairment by 9th grade. We also examined the degree to which CU traits uniquely predicted substance use and impairment over and above CD symptoms, as well as whether gender moderated these associations. Results indicated that adolescent-reported CU traits increased the likelihood of substance use and impairment onset and recurrence by 9th grade. Analyses revealed that CD symptoms accounted for prospective associations between adolescent-reported CU and substance use, but gender moderated these associations. Boys with elevated CU traits and CD symptoms were not more likely to report alcohol use onset or recurrence, but they were at highest risk of recurrent marijuana use, use of both alcohol and marijuana, and use-related impairment by 9th grade. Girls with low CU traits and high CD symptoms were most likely to report onset and recurrent use of alcohol, as well as recurrent marijuana use, use of both substances and impairment. Study findings highlight the importance of accounting for CD symptoms and gender when examining links between CU traits and substance use in early adolescence.     

Relationships between mindfulness, self-control, and psychological functioning

The purpose of this study was to investigate whether dispositional mindfulness (the tendency to be mindful in general daily life) accounts for variance in psychological symptoms and wellbeing after accounting for the influence of dispositional self-control (the tendency to be self-disciplined, reliable, hardworking, etc.). A large sample of undergraduate students (N = 280) completed self-report measures of mindfulness, self control, psychological wellbeing, and general psychological distress (depression and anxiety, and stress). As expected, both mindfulness and self-control were positively correlated with wellbeing and negatively correlated with general distress. Mindfulness was found to account for significant variance in psychological wellbeing and general distress after accounting for self-control. In addition, mindfulness was a significant moderator of the relationship between self-control and psychological symptoms. Results show that although self-control predicts significant variance in psychological health, mindfulness predicts incremental variance, suggesting that a mindful approach to ongoing experience can contribute to mental health in persons who are highly self-disciplined and hardworking.     

The Impact of the Core Knowledge Curriculum on Creativity

The Core Knowledge Sequence, which has been proposed as a voluntary national curriculum and has been adopted in many school districts across the United States, is unusually specific about the content students are expected to learn at each grade level. This has led to suggestions that it may promote rote learning and result in a decline in creativity. This possibility was investigated by comparing the creative performance of middle school students who had been attending Core Knowledge schools to that of students at a matched non-Core Knowledge school. There were 3 comparisons: poems written by seventh-grade students, short stories written by seventh-grade students, and short stories written by eighth-grade students. Experts evaluated the creativity of these stories and poems using a consensual assessment technique. Only 1 of the 3 comparisons yielded a statistically significant difference, and that difference favored Core Knowledge students. These results suggest that the Core Knowledge Curriculum and its detailed and specific requirements of content to be studied at each grade level do not negatively impact students' creativity and may even have a positive impact on creative performance in some areas.     

Self‐regulatory deficits associated with unpracticed mindfulness strategies for coping with acute pain

Training in mindfulness is a well‐supported therapeutic strategy for pain conditions, though short‐term mindfulness training for acute pain is not always effective. To explore the possibility that initial attempts at mindfulness in people without previous training may drain self‐regulatory resources, the current study used a student sample (N = 63) to test the hypothesis that brief instruction in mindfulness would lead to reduced pain tolerance on a cold pressor task, compared to more familiar strategies for coping with acute pain. We also investigated whether high heart rate variability (HRV), a physiological indicator of self‐regulatory capacity, would predict pain tolerance. Higher HRV predicted greater pain tolerance only in the control group, suggesting that applying unfamiliar mindfulness strategies while attempting to tolerate pain more rapidly sapped self‐regulatory strength.     

The Interaction of Language‐Specific and Universal Factors During the Acquisition of Morphophonemic Alternations With Exceptions

Using the artificial language paradigm, we studied the acquisition of morphophonemic alternations with exceptions by 160 German adult learners. We tested the acquisition of two types of alternations in two regularity conditions while additionally varying length of training. In the first alternation, a vowel harmony, backness of the stem vowel determines backness of the suffix. This process is grounded in substance (phonetic motivation), and this universal phonetic factor bolsters learning a generalization. In the second alternation, tenseness of the stem vowel determines backness of the suffix vowel. This process is not based in substance, but it reflects a phonotactic property of German and our participants benefit from this language‐specific factor. We found that learners use both cues, while substantive bias surfaces mainly in the most unstable situation. We show that language‐specific and universal factors interact in learning.     

Confessions of a Non-Evangelical

Book reviewed:
The Lost Soul of American Protestantism , D.G. Hart, Rowman & Littlefield 2002 (0-7425-0768-8), pp. xxxiv + 197, Hb $37.50/Pb $22.95
That Old-Time Religion in Modern America: Evangelical Protestantism in the Twentieth Century , D.G. Hart, Ivan R. Dee 2002 (1-56663-460-1), pp. 246, Hb $24.95
Deconstructing Evangelicalism: Conservative Protestantism in the Age of Billy Graham , D.G. Hart, Baker Academic 2004 (0-8010-2728-4), pp. 224, Hb $21.99