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 24 for “"choice reaction time"”.
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A study of the sequential effects of prediction outcome on choice reaction time
… outcome (PO) in a two-stimulus, two-response reaction time task. In a between-groups experiment, the RTs of "consonant" Ss, whose average confidence in a stimulus prediction increased following correct POs and decreased following incorrect POs, were reliably influenced by preceding PO. In …
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Intraindividual variability and micro-structural white matter changes in Alzheimer’s disease
… Traditional methods for diagnosing AD are time consuming and expensive, and treatments are often only effective in the early stages. These factors call for the development of alternative diagnostic methods. One such method that has gained attention due to its neural overlaps with AD is the …
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The Relationship Between Vision and Athletic Performance
… acuity, contrast sensitivity, depth perception, choice reaction time, hand and eye dominance, and peripheral attention. A copy of each team's cumulative seasonal statistics was obtained and used as a measure of athletic ability. These statistics contained cumulative information on each individual …
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The Error-Related Negativity: Evidence for a Neural Mechanism for Error-Related Processing
… processing information associated with errors in choice reaction time tasks. The experiments included a sentence verification task, a Sternberg memory search task, and two letter discrimination tasks. In all these experiments, a negative-going deflection (the error-related negativity, or ERN) in …
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The Relationship between Video Game Playing Habits and Reaction Time in Both Males and Females of Different Age Groups.
… sessions, and type of video game played, and reaction time (RT) in males and females of different age groups. The population consisted of volunteer participants (N = 28). Participants were asked to answer a questionnaire inquiring about their video game playing habits. After completing the …
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The effects of caffeine and caffeine withdrawal on measures of mood, cognition, and functional magnetic resonance imaging
… been considered to have net benefits on mood, reaction time, and cognitive performance. However, chronic caffeine use can result in tolerance to some of its stimulant effects and symptoms of withdrawal, such as headache and fatigue, which can appear after 12 hours of abstinence. The reversal of …
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Examining the Interaction Between Startle and Response Inhibition
… interrupting effects of a startle response in a choice reaction time task. Participants completed a task similar to a Go/No- Go in which they were to press a button with their dominant thumb as quickly as possible whenever they saw a green circle (Go) and withhold a response whenever they saw a …
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The effects of clobazam and lorazepam on patient's psychomotor performance and anxiety
… the 1,5 benzodiazepine clobazam (10 mg (two times a day) to lorazepam (1 mg two times a day). Carefully selected tests were administered pre-treatment and at 2 and 9 days after treatment. Compliance was checked by blood assays. There was a significant improvement in anxiety in the clobazam, …
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Effects of long-term participation in tennis on cognitive function in elderly individuals
… cognitive functions of processing speed (simple reaction and choice reaction time), working memory, and learning and memory were assessed by a computer-based Cogstate test (CogState Ltd, Melbourne, VIC, Australia). Physical function was measured by a modified version of the senior physical …
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The Effect of Mental Fatigue on Explicit and Implicit Contributions to Visuomotor Adaptation
… groups. Mental fatigue was induced through a time load dual back task (TLDB), in which participants were required to respond as quickly and accurately as possible to letters based on recall of previously presented letters, as well as digits displayed on the screen in a choice reaction time …
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A comparison of visual and memory search processes within a single task
… or memory) randomly between trials of a single choice reaction time (RT) task. The following sequence of events for each of the 280 trials occurred. A ''memory" list of letters appeared, which subjects (N = 12) turned off by pulling simultaneously a left and right-hand RT trigger. After 3 sec, a …
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Theoretical and practical considerations in the design of special-purpose keyboards and operator training procedures
… a discussion of the limitations of typical Choice Reaction Time models and the benefits of studying speed-accuracy tradeoff relationships, another analysis of the data of Experiment 4 is presented. In this analysis, the speed and accuracy of any given response are examined in terms of those …
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Response latencies in a social conformity paradigm: effects of a referent's competence
… as quickly as possible by pulling a particular reaction trigger. In addition to the typical measure of conformity (the proportion of conforming predictions), two latencies were measured: the interval between the reference prediction and the subject's verbal prediction (decision time), and the …
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Development of Computerized Multicomponent Cognitive Stimulation for Improving Cognitive Functions in Older Adults with Mild Cognitive Impairment: A Multimodal Investigation Using Neuropsychological and EEG/ERP Assessment
… the Wisconsin Card Sorting Test, simple and choice reaction time tasks, and the sound-induced flash illusion task. EEG data were analyzed for band frequencies, and ERP components such as N1, P2, P3, N4, and P6 were explored. Additionally, depression, anxiety, and quality of life were …
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Attention, Probability and Fatigue in Decision Making (Stress, Arousal, Narrowing)
… Sixteen right-handed male volunteers performed a choice reaction time (RT) task to lights located at 0, 3, 20, 50, and 80 degrees to their right. Following a practice session that included simple RT trials (simple RT was also tested at the end of the experiment) four levels of probability were …
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The Effects of Concurrently Performing Balance and Cognitive Tasks Across the Life Span
… task were performed: simple, Disjunctive, and choice reaction time tasks. Both sensorimotor and cognitive performance was examined separately in the single- and dual-task situations. A motion analysis system was used to measure postural sway. Reaction time and accuracy in the cognitive tasks …
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Performance Monitoring: Error Detection and the Error-Related Negativity in Choice-Related Time Tasks
… generated in the anterior cingulate cortex. In choice reaction time tasks, the monitoring process compares a representation of the appropriate (correct) response with a representation of the response actually made. The ERN amplitude reflects the degree of mismatch, i.e. the error signal. In the …
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Interférence cognitivo-motrice chez les personnes atteintes de sclérose en plaques
… positions (seated, standing and tandem) and a choice reaction time in single task (ST) and DT. The mean sway velocity, medio-lateral sway, antero-posterior sway and reaction time were calculated for each condition. In addition, both groups underwent the Montreal Cognitive Assessment, Fullerton …
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Mechanisms of apathy in health and Parkinson's disease
… in participants, in terms of their stop signal reaction time (SSRT). Compared to elderly controls, Parkinson's patients had a longer SSRT (more impulsive), with no differences in task accuracy or choice reaction time. Crucially, the effect of atomoxetine on SSRT depended on locus coeruleus …
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The application of decision times and reaction times in the construction of latency weighted test scores
… item weights in the construction of multiple-choice test scores was investigated. Three times were measured on each test item by the computer system which administered two tests. The times recorded were: the reading time which the student used to read the stem of the question; the decision …
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