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 151 for “"effects of age"”.
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Effects of age on autobiographical memory
Six experiments investigate the effects of healthy ageing on autobiographical memory (AM). Previous work in this area has shown that older adults exhibit a deficit in recall of specific episodes from their personal past, yet there is evidence in the literature of exceptions to this rule. As yet, …
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The Effects of Age and Task on Visual Emotion Processing
<p>Younger adults’ perception of and attention to facial stimuli are enhanced by positive and negative emotional expressions, with negativity leading to a greater benefit than positivity. Conversely, older adults demonstrate a positivity bias, devoting more attention to positive stimuli and less to …
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CBCT Analysis of the Pharynx: Effects of Age and Sex
<p>Morphology of the pharynx affects the volume of airflow, thereby affecting facial growth patterns, the risk of sleep apnea as well as breathing and swallowing patterns. Availability of cone beam computed tomography (CBCT) systems in dentistry make evaluation of the pharyngeal structures …
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Speech Intelligibility and Bilingualism: The Effects of Age of Acquisition
One of the central questions of second language acquisition research has been what affect age of acquisition has on the language learner's eventual proficiency in a second language. Researchers have tried to determine whether there is a strong correlation between age of onset and fluency in the …
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The Effects of Age and Task Timing Characteristics on Contingency Judgment
… these events. However, research has shown age-related impairments in this ability. The goal of this study was to examine how reduced processing speed in older adults affects contingency learning. Manipulating the time during which to generate the response, to test the limited time mechanism …
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The Effects of Age and Long-Term Endurance Training on VO2 Kinetics
The kinetics of the adjustment of pulmonary oxygen uptake (VO2) was examined during step transitions from 20 W to moderate-intensity cycling in young (Y), middle-aged (M), and older (O) endurance trained and untrained men. VO2p was measured breath-by-breath and changes in deoxygenated hemoglobin …
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Interference control in language processing: the effects of age and working memory
Language processing encompasses different levels of analysis, involving activation of semantic and perceptual features of concepts, binding of concepts, and understanding of the overall situation. Older adults or individuals with less working memory capacity have often been reported to have more …
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An Analytical Study of the Effects of Age and Experience on Flight Safety
<p>The purpose of this study was to determine whether there are any significant decreases in the safety and effectiveness of pilots by age 60. The data for this study came from records of general aviation accidents (i.e., for private pilots, commercial pilots, and air transport pilots), and airline …
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The believability of hearsay testimony involving child witnesses: effects of age and format
… testimony. This study examines the relationship of the child's age to the relative believability of three hearsay testimony fonnats in a 2 (child witnesses: one 4-year-old and one 8-year-old) x 3 (hearsay conditions: interview of child, interviewer testimony in "gist" or summary form, or …
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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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The Effects of Age on Stress and The Biomechanics of Slips and Falls
… if stress and anxiety associated with a fear of falling contributes to the increased incidents of falls among older adults. The investigation compared physiological parameters, with biomechanical parameters of walking for twenty-eight participants in two age groups: (18-35) and (65 or older). …
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Temporal and Aerodynamic Aspects of Velopharyngeal Coarticulation: Effects of Age, Gender and Vowel Height
<p>Previous studies on the normal patterns of velopharyngeal coarticulation did not provide a multidimensional description of the phenomenon. The primary objective of this study was to determine the effects of age, gender and vowel height on the temporal and aerodynamic aspects of nasal airflow …
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THE EFFECTS OF AGE, GH AND IGF-1 ON NEUROMUSCULAR RECOVERY FOLLOWING NERVE TRANSECTION
Age is the single most important determinant of recovery after peripheral nerve injury. With aging, there is a decrease in circulating levels of growth hormone (GH) and insulin-like-growth factor 1 (IGF-1). The purpose of this research was to examine the effect of age, GH and IGF-1 on neuromuscular …
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The Effects Of Age And Distraction On Interlimb Synchronization Of The Center Of Pressure
… by distractibility. This study examines the effects of cognitive distractions on interlimb synchronization and balance in young and older adults. Participants performed quiet standing trials on separate force plates under eyes-open and eyes-closed conditions, with and without cognitive …
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The Effects of Age on Gait and Functional Movement Characteristics in an Older Adult Population
The maintenance of function in an ageing population is essential to ensure current and future health in older people. The ability to walk independently in a range of situations and environments is key to successful ageing. Age-related gait adaptations including spatial-temporal parameters, joint …
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THE EFFECTS OF AGE AND HETEROCHROMATIN ON FREQUENCIES OF ACQUIRED CHROMOSOMAL ANEUPLOIDY IN UNCULTURED HUMAN LEUKOCYTES
While age-related sex chromosomal aneuploidy is a well-characterized phenomenon, the relationship between autosomal loss and age remains unclear. The emergence of the specific and highly sensitive fluorescence in situ hybridization (FISH) technology has enabled investigators to study interphase …
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