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Social and Behavioral Sciences Commons

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Clinical Psychology

Theses and Dissertations

2019

Neuropsychology

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Full-Text Articles in Social and Behavioral Sciences

Evaluation Of Cognitive Control Using Non-Gaussian Reaction Time Distributions In Fractionated Executive Function Tasks, Dmitriy Kazakov Aug 2019

Evaluation Of Cognitive Control Using Non-Gaussian Reaction Time Distributions In Fractionated Executive Function Tasks, Dmitriy Kazakov

Theses and Dissertations

The present study seeks to further investigate and refine the three-factor model of executive function (EF; Inhibition, Shifting, and Monitoring/Updating) known as the unity/diversity framework (Miyake et al., 2000). Past work in this area utilized “power” tasks that prioritize accuracy and difficulty, but real-world problem-solving incentivizes quick and efficient solutions. Ten computerized reaction time (RT) tasks: four elementary cognitive tasks (ECTs; Jensen, 1987; Santos, 2016) with progressively increasing task demands and six EF tasks. The ratio scale of RT necessitated the use of non-Gaussian statistics to better describe distribution shape, while diffusion modeling (DM; Ratcliff, 1978) was used to interpret …


The Influence Of Proximal Processes In Recruitment And Participation Of Monolingual Spanish-Speaking Latinos/As Living With Hiv In Neuropsychological Research In Milwaukee: An Ecological Theory Analysis From A Chicano Cultural Perspective., Enrique Ignacio Gracian Aug 2019

The Influence Of Proximal Processes In Recruitment And Participation Of Monolingual Spanish-Speaking Latinos/As Living With Hiv In Neuropsychological Research In Milwaukee: An Ecological Theory Analysis From A Chicano Cultural Perspective., Enrique Ignacio Gracian

Theses and Dissertations

The goal of the original study was to examine the relationships among neuropsychological measures, laboratory measures of medication management ability, self-report and pharmacy refill records, and biometric information in monolingual Spanish-speaking Latinos/as living with HIV. The researcher experienced difficulties with recruitment and collecting valid and complete data from patients who enrolled in the study. After a one-year recruitment period and with the support of the dissertation committee and advisor, the researcher changed the focus of the dissertation to examine the data that were collected using a case study framework (Berk, 2000; Bronfenbrenner, 1977, 1979). The researcher used Bronfenbrenner Ecological Systems …