Regional cerebral glucose metabolism in aphemia: A case report

Local cerebral metabolism was determined in a patient suffering aphemia following cerebral infarction using the 18FDG-PET technique. The syndrome was characterized by profound ictal nonfluency with sparing of other language functions. Speech subsequently improved so that content and grammar were appropriate but mild dysprosody persisted. Conventional CT showed no lesion of the left hemisphere while PET revealed a discrete focus of hypometabolism on the left which partially resolved on serial studies. The metabolic lesion could be localized to the region of the inferior precentral gyrus and the adjacent subcortical space.     

PREVENTION OF DEPRESSIVE SYMPTOMS IN SCHOOLCHILDREN:

Abstract— After teaching cognitive and social-problem-solving techniques designed to prevent depressive symptoms, we followed 69 fifth- and sixth-grade children at risk for depression for 2 years. We compared these children with 49 children in a matched no-treatment control group The prevention group re- ported fewer depressive symptoms through the 2-year follow-up, and moderate to severe symptoms were reduced by half. Surprisingly, the effects of the prevention program grew larger after the program was over. We suggest that psychological immunization against depression can occur by leaching cognitive and social skills to children as they enter puberty     

Cognitive task effects on hemispheric blood flow in humans: Evidence for individual differences in hemispheric activation

Evidence from two indirect measures of hemispheric activity, EEG α and conjugate lateral eye movements, has pointed to the existence of individual differences in hemispheric activation. Results from a more direct indicator of hemispheric activity, regional cerebral blood flow as measured by the ¹³³Xe inhalation method, show that such individual differences can be detected in the distribution of blood in the two hemispheres and that the amount of increase in blood flow in the right relative to the left hemisphere is correlated with performance on a spatial task. These results corroborate and extend the findings from the EEG and eye movement studies and suggest that the dimension of individual differences in hemispheric activation may exert significant influence on cognitive performance and on problem-solving strategies.     

The prevention of depressive symptoms in low-income, minority children: two-year follow-up

We present 2-year follow-up data on the efficacy of the Penn Resiliency Program (PRP), a school-based depression prevention program, with low-income, racial/ethnic minority children. This program taught cognitive and social problem-solving skills to 168 Latino and African American middle school children who were at-risk for developing depressive symptoms by virtue of their low-income status. We had previously reported beneficial effects of the PRP up to 6 months after the conclusion of the program for the Latino children, but no clear effect for the African American children. In this paper, we extend the analyses to 24 months after the conclusion of the PRP. We continue to find some beneficial effects for the Latino children and no differentially beneficial effect for the African American children. Implications of findings and future research directions are discussed.     

The sounds of dominance.

A study was conducted to determine the effects of vocal cues on judgements of dominance in an interpersonal influence context. Physical measures of human vocal cues and participant ratings of dominance were obtained from videotapes of actors delivering short influence messages. After controlling for linguistic and visual content of messages, results indicated that mean amplitude and amplitude standard deviation were positively associated with dominance judgments, whereas speech rate was negatively associated with dominance judgments. An unexpected interaction revealed that mean fundamental frequency (F₀) was positively associated with dominance judgments for male speakers but not significantly associated with dominance judgments for female speakers. F₀ standard deviation was not significantly associated with dominance judgments. Results support the conclusion that dominance judgments are inferred from multiple sources of information and that some vocal markers of dominance are more influential than others.     

Prevention of depressive symptoms in school children

This paper describes the development and preliminary efficacy of a program designed to prevent depressive symptoms in at-risk 10–13 year-olds, and relates the findings to the current understanding of childhood depression. The treatment targets depressive symptoms and related difficulties such as conduct problems, low academic achievement, low social competence, and poor peer relations, by proactively teaching cognitive techniques. Children were identified as ‘at-risk’ based on depressive symptoms and their reports of parental conflict. Sixty-nine children participated in treatment groups and were compared to 73 children in control groups. Depressive symptoms were significantly reduced and classroom behavior was significantly improved in the treatment group as compared to controls at post-test. Six-month follow-up showed continued reduction in depressive symptoms, as well as significantly fewer externalizing conduct problems, as compared to controls. The reduction in symptoms was most pronounced in the children who were most at risk.     

Differentiating insight from non-insight problems

This study aimed to investigate whether a range of tasks that have been generally classed as requiring insight form an empirically separable group of tasks distinct from tasks generally classed as non-insight. In this study, 24 insight tasks, 10 non-insight tasks, and tests of individual differences in cognitive abilities and working memory were administered to 60 participants. Cluster analysis of the problem-solving tasks indicated that the presumed insight problems did tend to cluster with other presumed insight problems, and similarly the presumed non-insight problems tended to cluster with other presumed non-insight tasks. Performance on presumed insight problems was particularly linked to measures of ideational flexibility with a different pattern of results for the non-insight tasks. Spatial insight problems were linked to spatial flexibility and verbal insight tasks were linked to vocabulary scores. The results are discussed in relation to recent developments of dual process theories of thinking.     

Master resilience training in the U.S. Army

The U.S. Army Master Resilience Trainer (MRT) course, which provides face-to-face resilience training, is one of the foundational pillars of the Comprehensive Soldier Fitness program. The 10-day MRT course is the foundation for training resilience skills to sergeants and for teaching sergeants how to teach these skills to their soldiers. The curriculum is based on materials developed by the University of Pennsylvania, the Penn Resilience Program (PRP), and other empirically validated work in the field of positive psychology. This "train the trainer model" is the main vehicle for the dissemination of MRT concepts to the entire force.