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Full-Text Articles in Psychology
Neural Dedifferentiation In Relation To Risk For Alzheimer's Disease, Nathan C. Hantke
Neural Dedifferentiation In Relation To Risk For Alzheimer's Disease, Nathan C. Hantke
Master's Theses (2009 -)
Functional magnetic resonance imaging (fMRI) research indicates that as an individual's age increases, the task-related spatial extent of neural activation increases. This decrease in neural specificity, or dedifferentiation, is often demonstrated by older adults during challenging cognitive tasks. Cognitively intact individuals at-risk for Alzheimer's disease (AD), as deemed by having an apolipoprotein-E ε4 allele or a family history of AD, demonstrate increased fMRI activation as compared to individuals at lower risk. Using a low effort, high accuracy event-related semantic memory task involving the presentation of famous and non-famous names, we examined spatial neural specificity through a measure of dedifferentiation using …
Neuropsychological Functioning And Attrition Rates In Outpatient Substance Dependence Treatment, Sandra M. Adams
Neuropsychological Functioning And Attrition Rates In Outpatient Substance Dependence Treatment, Sandra M. Adams
Dissertations (1934 -)
Numerous neuropsychological factors have been associated with substance dependence, however, very few studies have evaluated the relationship of the neuropsychological functioning and attrition rates in substance dependence treatment. This study examined the relationship of neuropsychological functioning and attrition rates in 68 homeless, substance dependent men participating in outpatient treatment at the 7C's Community Counseling Clinic located in the Guesthouse of Milwaukee, Wisconsin. A neuropsychological battery including the Delis Kaplan Executive Functioning System, the Conners' Continuous Performance Test II, the Wechsler Abbreviated Scale of Intelligence (WASI) and the Wechsler Test of Adult Reading was given to all participants to evaluate neuropsychological …