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Full-Text Articles in Cognitive Psychology
Nutrition As A Modifiable Risk Factor For Cognitive Decline: Associated Cognitive And Physical Health Changes, Taylor Mcmillan
Nutrition As A Modifiable Risk Factor For Cognitive Decline: Associated Cognitive And Physical Health Changes, Taylor Mcmillan
Electronic Theses and Dissertations
Dementia is defined as gradual, progressive loss of cognitive functioning, greater than what is expected of normal aging, resulting in functional impairment. There are several types of dementia clinical syndromes that are accompanied by unique patterns of cognitive dysfunction and neuropathological changes. Alzheimer’s disease (AD) is the most common type of clinical dementia syndrome, accounting for approximately 60-70% of cases. Neuropathological mechanisms associated with AD include the disruption of the cholinergic system, accumulation of amyloid-beta plaques and hyperphosphorylated tau, as well as vascular pathology. Vascular pathology complicates the characterization of clinical and neuropathic changes in AD, as there becomes significant …
Cholesterol: A Possible Mediator Of Apoe Risk For Alzheimer's Disease, Michelle Marie Dunk
Cholesterol: A Possible Mediator Of Apoe Risk For Alzheimer's Disease, Michelle Marie Dunk
Theses and Dissertations
Despite the well-established link between the ε4 allele of the apolipoprotein E (APOE) gene and AD, the underlying mechanisms that mediate the risk of developing AD remain elusive. Literature on the role of APOE in cholesterol metabolism suggests that blood cholesterol may be a key factor in the development of AD pathology. Current study aims to investigate whether total cholesterol differs by APOE status and whether this relationship is predictive of AD diagnosis and its biomarkers. Baseline total cholesterol, APOE status, AD diagnosis, global cognitive function, brain Aβ, plasma Aβ40 and Aβ42, and cerebrospinal fluid (CSF) Aβ, tau, and phosphorylated …
Evaluation Of A Cognitive Training Program For Older Adults With Mild To Moderate Cognitive Decline, Kelly Bergstrom
Evaluation Of A Cognitive Training Program For Older Adults With Mild To Moderate Cognitive Decline, Kelly Bergstrom
All Graduate Theses, Dissertations, and Other Capstone Projects
Older adults often experience varying levels of cognitive decline. Several interventions intended to help slow the effects of cognitive decline have been studied, including cognitive training. Cognitive training involves engaging individuals, typically in a group setting, in exercises that target specific cognitive domains, such as attention, perceptual speed, memory, language, and executive functioning. Literature on cognitive training provides mixed support for its efficacy. The purpose of the current study was to determine whether a manualized, in-person cognitive training program for individuals with mild to moderate cognitive decline would lead to an improvement in cognitive performance. The program targeted six cognitive …
Effects Of Age On Contextually Mediated Associations In Paired Associate Learning, Jennifer Patricia Provyn
Effects Of Age On Contextually Mediated Associations In Paired Associate Learning, Jennifer Patricia Provyn
Psychology - Theses
Older adults demonstrate an associative memory deficit that has been attributed to difficulty binding item information to contextual information (Naveh-Benjamin, 2000). Accounts of temporally-defined episodic associations that depend upon contextual retrieval (TCM Howard & Kahana, 2002) predict that a deficit in item-to-context binding will result in fewer backward (b-a) and transitive (a-c) associations. To measure group differences in backward and transitive associations, younger and older participants learned single function lists of paired associates with no contextual overlap (e.g., j-k, l-m) and double-function lists of paired associates consisting of chains of pairs (e.g., a-b, b-c). Although younger adults out-performed older adults …