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 38 for “"age-related declines"”.
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The Effect of Age-related Declines in Inhibitory Control on Audiovisual Speech Intelligibility
… modality alone, constituting a general AV advantage for speech perception. Despite an overall AV advantage, older adults seem to receive less benefit from this bimodal presentation than do younger adults. However, there is evidence to suggest that not all age-related deficits in AV speech …
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Effects of Age-Related Declines in Visual Motion Processing on Older Driver Safety
… reports three experiments investigating how age-related declines in visual motion processing affect older drivers’ ability to drive safely. In particular, these experiments assess the efficacy of: 1) A test of motion sensitivity, the Peripheral Motion Contrast Threshold (PMCT) test, which …
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Exploring metabolic and molecular mechanisms regulating age-related declines in human skeletal muscle regenerative capacity.
… young human skeletal muscle is poorly defined. Age-related impairments in the regenerative mechanisms may contribute to the age-related loss of muscle mass and function, which has negative consequences for overall health and disease. Thus, the first aim of this thesis was to initially …
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Mismatch Negativity as a Marker of Auditory Pattern Separation Integrity in Aging
… of change detection and encoding, relates to age differences in mnemonic discrimination. The MMN was recorded from 33 young (18–32 years, 18 females) and 30 older (55–86 years, 14 females) adults in a passive oddball paradigm using tone sequences. Participants then completed an incidental …
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The Effects of VO2max on Levels of Testosterone as Males Age
… the gonads is “hypogonadism” and development of age-related hypogonadism is known as “late-onset hypogonadism”. Late-onset hypogonadism is characterized by issues such as osteoporosis, Alzheimer’s disease, frailty, obesity, cardiac failure and ischemic heart disease. The purpose of this …
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White matter hyperintensities and lower extremity physical function before and after an aerobic exercise intervention in healthy older adults
Background: Age-related declines take many forms including white matter deterioration, cognitive impairments, and mobility limitations, all of which can have practical implications, such as falling and making risky pedestrian decisions. Modifiable lifestyle interventions, like physical activity, …
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Race and Neighborhood SES Differences in the Development Trajectories of Type 1 Diabetes Management of Caucasian and Ethnic Minority Youth
… Caucasian youth as they evidence characteristic declines in metabolic control. There is some cross-sectional evidence that racial disparities in pediatric diabetes exist. However, only one study has evaluated racial disparities longitudinally and no studies have evaluated these differences across …
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Lumbopelvic Control in Dynamic Tasks – The Relationship Between the Active Hip Abduction Test and Frontal Plane Kinematics
… stair circuit. While no significant effects of age, sex, or AHAbd score were observed on LPC during stair ascent, significant interactions were found during stair descent, particularly among younger adults and females with poor AHAbd scores. The AHAbd test did not effectively identify LPC …
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Memory Fidelity in Healthy Ageing and Risk for Cognitive Decline
Memory decline is characteristic of cognitive ageing and it has been suggested that one important factor underpinning the magnitude of age deficits is a reduction in the fidelity or quality of perceptual and mnemonic representations. This thesis examined cognitive and neural underpinnings of …
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Sensory and Cognitive Declines in Older Adults: A Longitudinal Study
… studies, Sommers et al.: 2011) found that age-related declines in hearing, as assessed by pure-tone thresholds, begin around age 20 and continue across the lifespan. In another article published from the same cross-sectional dataset, Hale et al.: 2011) found that working memory ability also …
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Age and Family History of Alzheimer's Disease and Related Dementias as Predictors of Locus Coeruleus and Salience Network Connectivity
… pathology and also experiences normal age-related declines in functioning. In this study, the associations between age, family history of Alzheimer's Disease, and functional connectivity between the LC and key nodes of the SN were explored in a sample of 110 older and younger adults …
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EFFECTS OF BEETROOT JUICE, PROTEIN SUPPLEMENTATION, AND RESISTANCE TRAINING ON STRENGTH IN OLDER ADULTS
… resistance training was tested to improve these age-related declines. Beetroot juice is a dietary source high in nitrates. PURPOSE: The primary purpose was to examine the effects of this intervention on quadriceps muscle strength in healthy older adults. Secondary outcomes were to determine …
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Musculoskeletal adaptation to Partial Weight Suspension : studies of Lunar and Mars loading
… bone loss and muscle atrophy far in excess of age-related declines are hallmarks of microgravity adaptation. However, while the physiological effects of such disuse unloading are well-described, the effects of partial weight bearing, such as expected on the moon (16% of Earth's gravity) and …
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Prior knowledge and age effects in memory: Implications for episodic and short-term/immediate memory
The ageing literature shows robust age-related declines in immediate (e.g. Bopp & Verhaeghen, 2005; Multhaup, Balota & Cowan, 1996; Verhaeghen, 2002; Verhaeghen, Marcoen & Goosens, 1993) and episodic memory (Fleischman, Wilson, Gabrieli, Bienias & Bennett, 2004; Park, 2000; Schaie, 2005; Singer, …
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Prior Knowledge and Age Effects in Memory: Implications for Episodic and Short-term/ Immediate Memory
The ageing literature shows robust age-related declines in immediate (e.g. Bopp & Verhaeghen, 2005; Multhaup, Balota & Cowan, 1996; Verhaeghen, 2002; Verhaeghen, Marcoen & Goosens, 1993) and episodic memory (Fleischman, Wilson, Gabrieli, Bienias & Bennett, 2004; Park, 2000; Schaie, 2005; Singer, …
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Application of diffusion weighted imaging in studying motor control and moving towards higher resolution diffusion imaging
… window into changes in fiber pathways with age, in hopes to better understand the aging process. Along with age-related declines in myelination of fiber pathways in the brain, there is generally a decline in performance on both cognitive and motor tasks. By combining motor control measures …
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The Effect of Age on Visuomotor Learning Processes
… although this ability can decline with age. Adaptation of movements, such as reaching with altered visual feedback, is thought to rely on the quality of sensory feedback and how well we can predict our movements. Cognitive strategies can also contribute to how quickly adaptation can …
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Socioenvironmental and demographic modifiers of aging in nonhuman animals
Across many species, chronological age is the greatest predictor of mortality and the leading risk factor for many non-communicable diseases. However, not all individuals within a species exhibit the same age-related declines in health. For example, some individuals develop early-onset of …
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The effect of aging and rhythmic temporal structure during encoding on recognition memory: an EEG Study
… environmental factors can be used to ameliorate age related declines in memory functioning. Recent research in recognition memory suggests that increased temporal expectancy during encoding can benefit recognition memory at retrieval in a younger adult sample. The current study aimed to …
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