Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 57 for “"Cognitive Aging"”.
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Lifestyle Factors Related to Cognitive Aging
Cognitive changes are a hallmark feature of Alzheimer's disease (AD) and lifestyle behaviors have been associated with a reduced risk of disease onset and slower rate of cognitive decline. Research examining the relationship of lifestyle factors (LFs) to brain health has typically focused on …
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Cerebrovascular influence on brain and cognitive aging
… in severe adverse effects on brain health and cognitive aging. Recently, Fabiani et al., (2014) introduced a novel non-invasive approach of quantifying cerebrovascular health using diffuse optical imaging in a sample of older adults. This method is based on the estimation of the arterial pulse …
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An integrated neurovascular investigation of cognitive aging
… has demonstrated that individual variance in cognitive aging is associated with cardiovascular health. In this dissertation, I integrate these factors into a cascade model and show how they might jointly and hierarchically account for individual differences in cognitive aging. The aim here is …
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Neurovascular mechanisms of cognitive aging: A multimodal neuroimaging investigation
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-03-01 without embargo terms
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Cardiorespiratory fitness as a modulator of hippocampal subfield structure and function in cognitive aging
Cognitive aging has profound effects on the hippocampus, a brain region that is critical for episodic memory formation and spatial navigation. Accurate episodic memory formation requires pattern separation, a neurocomputational process that orthogonalizes similar stimulus input into distinct neural …
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Successful cognitive aging: Implications of early Alzheimer's disease detection, lifestyle choices, and environmental factors
… antecedents in one's life which shape his or her cognitive aging trajectory may allow for an increase in those who remain healthy and productive throughout senescence, which would alleviate multiple socioeconomic and emotional burdens. In the current report, a series of studies are documented …
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Understanding the role of cerebrovascular health in cognitive aging: a multi-modal noninvasive human neuroimaging approach
… of the cerebrovasculature may be related to cognitive ability. Thus, it is critical to determine the effect of cerebrovascular health on cognition and the mediators of cerebrovascular health across the lifespan. Since aerobic fitness is known to alleviate both cognitive and volumetric losses …
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Developing an assessment protocol to detect cognitive impairment and dementia in Cree Aboriginal seniors and to investigate cultural differences in cognitive aging
… on understanding cultural perceptions of normal aging and dementia within a Canadian Aboriginal population, modifying existing screening and neuropsychological assessment instruments for use in both normal aging research and clinical practice, and investigating the role of culture in cognitive …
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The Neural Correlates of the Age-Related Decrements in Selective Attention That Occur in Healthy Cognitive Aging: an FMRI Study of the Stroop Task
There is growing evidence that cognitive changes associated with healthy aging occur much earlier than previously believed. Yet, the vast majority of healthy cognitive aging studies neglect to analyze the gradual neural and behavioural age-related changes that surreptitiously begin in mid-adulthood …
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Using Genetic Diversity to Understand Susceptibility to Cognitive Decline in Aging and Alzheimer’s Disease
… important role in determining susceptibility to cognitive aging and transition to dementia such as Alzheimer's disease (AD). Identifying the specific genetic variants that contribute to cognitive aging and AD may aid in early diagnosis of at-risk patients, as well as identify novel therapeutics …
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The Effect of Language on Cognition in an Acculturated American Sample of Healthy Older Adults
… factor against the deleterious effects of cognitive aging. Objective: The purpose of the current study is to examine whether multilingualism protects against the effects of cognitive aging on the domains of executive functioning, linguistic processing, attention, memory, and visuospatial …
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A role for nutrition in healthy brain aging
Nutritional cognitive neuroscience is an emerging interdisciplinary field of research that seeks to understand nutrition’s impact on cognition and brain health across the life span. While accumulating evidence indicates healthy cognitive aging is dependent upon both brain health and nutritional …
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Socioenvironmental and demographic modifiers of aging in nonhuman animals
… what predicts inter-individual pace of aging remains a key question in evolutionary biology and human health. It remains unknown how many intrinsic (e.g., body size) and extrinsic (e.g., environment) factors affect aging and, ultimately, health and survival. Further, aging is a complex …
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Preadjunct questions as a learning strategy for older adults
… were explained in terms of resource theory of cognitive aging.
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Daily activities and functional abilities impacted by cognitive impairment
Mild Cognitive Impairment (MCI) is a transitional stage between normal cognitive aging and dementia, often marked by decline of one or more cognitive domains and the preservation of daily activities. Previous research has demonstrated that Activities of Daily Living (ADL) tend to be well preserved …
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Effects of Expectancy and Context an Anaphor Resolution in Older and Younger Adults
… noun). Some early work has suggested that aging brings about increased difficulty in resolving anaphoric expressions; however, little work has examined the effects of aging on the moment-to-moment demands of anaphor resolution, to determine the time course of older adults' anaphor …
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Revealing the plastic brain with functional connectivity: effects of exercise on brain plasticity and cognition
… 2007; He et al., 2005). Declining mental and cognitive health is a primary component of increased health care costs, and a risk factor for diagnosis of Alzheimer’s Disease (AD) and death (NIH, 2007; van Gelder et al., 2007). Therefore, research supporting a greater understanding of the …
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Behavioral and neural investigations of value-directed strategic processing
… value on value-directed strategic processing in cognitively normal younger and older adults, and older adults with mild cognitive impairment. Chapter 1 reviews historical perspectives and paradigms related to selective attention and behavioral and neuroimaging literature related to value-directed …
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Identifying Cognitive Profiles and Determinants of Cognitive Superaging Among Older Adults
Cognitive aging among older adults is heterogeneous and does not follow a single trajectory. This study used a person-centered approach to identify cognitive profiles, specifically cognitive superagers, among United States adults aged 75 and older and to quantify transitions between cognitive …
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