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Psychology

Theses/Dissertations

Memory

Wayne State University

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Hearing Loss And Verbal Memory Assessment In Older Adults, Christina G. Wong Jan 2017

Hearing Loss And Verbal Memory Assessment In Older Adults, Christina G. Wong

Wayne State University Dissertations

Prior research has found that adults with hearing loss perform worse on cognitive testing than adults without hearing loss, and some studies have suggested that hearing loss is associated with dementia. Heavy emphasis on tests involving auditory stimuli for memory assessment may result in overdiagnosis of cognitive impairment in individuals with hearing loss. The present study compared visual and auditory versions of a verbal memory test among older adults with and without hearing loss. Forty-one adults with moderate-to-severe, sensorineural hearing loss (HL) and 41 age-matched adults with normal hearing (NH) participated. Age ranged from 55 – 80 years. They completed a ...


Neural Correlates Of Episodic Memory Formation In Children And Adults, Lingfei Tang Jan 2015

Neural Correlates Of Episodic Memory Formation In Children And Adults, Lingfei Tang

Wayne State University Theses

The medial temporal lobe (MTL) and prefrontal cortex (PFC) are two key brain regions that support episodic memory formation in both children and adults, but the functional developmental of these regions remains unclear. In this study, we investigated the development of neural correlates of episodic memory formation using functional MRI with a subsequent memory paradigm, administered to a cross-sectional sample of 83 children and adults. We found that MTL subregions showed an age-related increase in activation supporting memory formation of complex scenes. In addition, a functionally defined scene-sensitive region in the posterior MTL also showed similar increase and predicted better ...


Engagement In Activities And Cognitive Functioning Among Older Adults In The Health And Retirement Study, Pamela Emily May Jan 2015

Engagement In Activities And Cognitive Functioning Among Older Adults In The Health And Retirement Study, Pamela Emily May

Wayne State University Dissertations

The goal of this dissertation is to examine the effect of cognitive and social activities on cognitive performance and health conditions in a national sample of older adults from the Health and Retirement Study (HRS). This dissertation first aimed to identify longitudinal relations between activity frequency and cognitive functioning. Two hypotheses were tested, baseline activity frequency predicts change in cognitive functioning over time, and baseline cognitive performance predicts change in activity frequency over time. The dissertation’s second aim was to identify links between activity frequency and cognitive trajectories. The third aim was to identify longitudinal relations between activity frequency ...


Changes In Cerebral White Matter, Vascular Risk And Cognition Across The Adult Lifespan, Andrew Robert Bender Jan 2014

Changes In Cerebral White Matter, Vascular Risk And Cognition Across The Adult Lifespan, Andrew Robert Bender

Wayne State University Dissertations

Numerous studies over the past decade have used diffusion tensor imaging (DTI) to examine associations between age, diffusion and anisotropy measures of cerebral white matter (WM), and cognitive performance. However, few have examined relationships between intra-individual change in DTI measures of WM and cognitive function. It is possible that the extant cross-sectional findings are a poor representation of age-related change in WM and cognition. The present study used latent difference-score modeling (LDM) to assess change over two years in DTI indices fractional anisotropy (FA), radial diffusivity (DR), axial diffusivity (DA) and mean diffusivity (MD). In addition, we examined the effects ...


Assessment Of Memory Function And Effort Using The Wechsler Memory Scale - 4th Edition, Justin B. Miller Jan 2010

Assessment Of Memory Function And Effort Using The Wechsler Memory Scale - 4th Edition, Justin B. Miller

Wayne State University Dissertations

Even the most psychometrically sound measures are sensitive to the level of effort put forth by the examinee and their intent. This is especially true for measures of memory functioning that are a common target of negative response bias and withholding effort. The aim of the present study was to develop methods for detecting these behaviors for the current edition of the Wechsler Memory Scale, 4th Edition (WMS-IV) using a community sample of healthy adults coached to simulate traumatic brain injury (TBI) and a sample of bona fide TBI survivors. The primary analytic strategy involved generation of prediction models to ...