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Intellectual Ability In Children With Anxiety: A Replication And Exploration Of The Differences, Melissa S. Munson
LSU Master's Theses
The purpose of this study was to examine the effect of anxiety on the intellectual functioning of children. Specifically, the current researchers sought to replicate previous findings that children with higher levels of anxiety have significantly lower scores on tests of intelligence. A second goal was to examine possible reasons for these deficits, including possible deficits in working memory and/or attention. Participants were divided into two groups with high and low anxiety, based on a self-report measure, though none of the children reported clinically problematic anxiety. The participants were 19 children (10 males, 9 females) who were recruited from ...
Apolipoprotein Status And Cognitive Functioning In Adulthood: Role Of Physical Health And Social Network Characteristics, Jennifer Lee Silva
LSU Doctoral Dissertations
This study examined the relationships among cognitive function, physical health, social network characteristics, and apolipoprotein (APOE) genotype in participants from the Louisiana Healthy Aging Study. Prior literature has shown that the ε4 allele of APOE is associated with cognitive deficits (Wisdom, Callahan, & Hawkins, 2009). This study failed to find any relation between APOE genotype (ε4 carrier vs. non-carrier) and cognitive ability after controlling for age and education level. Tests for physical health mediation and social network moderation did not alter the ε4/cognition null results. This finding conflicts with prior research suggesting that physical activity and health modify the association between the ε4 allele and cognition (Deeny et al., 2008; Haan et al., 1999). Prevalence ratings of the ε4 allele significantly decreased with age, where the oldest-old had approximately 50% fewer ε4 carriers than the younger age groups. Results from the current study indicate that the ε4 allele is predictive of mortality rather than cognitive ability.