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 28 for “"Mental arithmetic"”.
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Using Wireless Dry EEG System to Detect Mental Workload during Mental Arithmetic
Mental workload, the amount of cognitive resources invested during a task, is a crucial metric for performance. Determining the performance of an individual aids in the screening of candidates for, or detection of alertness during, a high-risk task. Three measures for assessing mental workload …
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Effects of Increases in Mental Workload on Avoidance of Ground Hazards
… quantities of information and increases in mental workload might cause distraction, reduce attention to dangers in the immediate environment, and threaten soldier survival. The purpose of this laboratory investigation was to quantify the effects of increases in mental workload on one of the …
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Clarifying the Nature of Pain-Related Anxiety: Implications for Assessment and Treatment of Chronic Musculoskeletal Pain
… anxiety may be an expression of AS. An experimental design was used in an attempt to extend the findings of Greenberg and Burns (2003) with a non-clinical analogue sample. Participants were healthy adults (N = 61, 62% women, M age = 31, SD = 11.45) who completed measures of pain-related …
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Transfer of heart rate feedback training to reduce heart rate response to laboratory tasks
… during the presentation of a videogame, a mental arithmetic challenge, and a hand grip task until the participants reduced their HR to within 4 bpm of their resting HR or until they completed three 2-hour training sessions. The participants' ability to reduce HR responses to the three …
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The development of number processing and its relation to other parietal functions in early childhood
The project has explored the developmental trajectories of several cognitive functions related to different brain regions: parietal cortex (quantity manipulation, finger gnosis, visuo-spatial memory and grasping abilities) and occipito-temporal cortex (face and object processing), in order to …
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Using impedance cardiography to examine changes in hemodynamic parameters during heart rate biofeedback
… (FB--) and were presented with a videogame and mental arithmetic challenge, as HR, blood pressure, and impedance cardiography-derived measures were recorded. During the training sessions, the FB+ group received HR feedback and the FB-- group was not provided with HR feedback while playing the …
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The Effects of Social Support on Perceived Mood and Perceived Muscle Tension
… post-stressor (Post). Stress was induced with a mental arithmetic serial subtraction task and was measured by perceived mood state with the Perception of Mood States (POMS) and perceived muscle tension with the Nordic Musculoskeletal Questionnaire (NMQ). The results showed a main effect of social …
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Anger Expression, Harassment, and Evaluation: Cardiovascular Reactivity and Recovery to Mental Stress
… anger in predicting the CVR and recovery to mental arithmetic (MA) stress with and without harassment in 47 male undergraduate psychology students. Results revealed anger out (AO) to be associated with high vagal and low frequency power suppression in response to the MA task with harassment. …
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The Role of Attachment in the Use of Positive Emotion Regulation After Stress
… at the end of the experiment and then performed mental arithmetic. Finally, participants rested during the recovery period and then saw their assigned cartoons. Throughout the experiment, participants rated their pleasantness and unpleasantness while their physiological reactions were measured. …
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Resiliency and Autonomic Control of Cardiac Responses to Stress
… laboratory stressors. Subjects engaged in a mental arithmetic, speech preparation, and verbal fluency task to elicit cardiovascular activation along a continuum of threat. Electrocardiography and impedance cardiography were collected before, during, and after these tasks to assess changes in …
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Cardiovascular Reactivity to and Recovery from Laboratory Tasks in Low and High Worry Women
… versus passive sympathetic stress task paradigm (mental arithmetic, hand cold pressor). Subjects were nonsmokers free of cardiovascular and neurological disease. Trait worry was examined through the Penn State Worry Questionnaire (PSWQ). Blood pressure recordings and cardiac recordings through ECG …
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Cardiovascular Activity During Laboratory Tasks in Individuals with High and Low Worry
… and relaxation were used: hand cold pressor, mental arithmetic, orthostatic position, supine position, worry imagery, and relaxation imagery. Heart rate, heart rate variability, impedance cardiography, and blood pressure indices were collected to assess task reactivity and recovery, …
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Attention Strongly Modulates Reliability of Neural Response to Naturalistic Narrative Stimuli
… than when attention was directed inward to a mental arithmetic task during stimulus presentation. This effect was strongest for audiovisual stimuli with a cohesive narrative and greatly reduced for speech stimuli lacking meaning. For compelling audiovisual narratives, the effect is remarkably …
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Differentiation between the Effects of Physical and Psychosocial Stress on a Feedback-based Learning Task
… college-aged subjects were assigned into the mental arithmetic (MA) task or the cold pressor task (CPT) group. All subjects performed a feedback-based learning task prior to and after the stressor. Cardiovascular reactions, stress experiences, and learning outcomes were recorded during tasks. …
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The influence of real-world factors on threat detection performance in airport X-ray screening
… examinations of the factors that may be detrimental to screener performance, to understand those factors in more detail, and to bring those factors to bear upon current models of visual search. It has been argued that screener performance is impaired by searching for infrequent targets (the …
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How Humans solve Scheduling Problems: Analysis of Human Behavior in the Plan-A-Day Task
… hypothesized to take place at the level of the mental arithmetic that is necessary to check schedules in advance (forward checking). It is shown how declarative and procedural learning must work together to enhance scheduling in the PAD task. These assumptions are further investigated in two …
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Lifetime stress, blood pressure, heart rate, and salivary cortisol levels in post-menopausal women
… an anticipatory period, an oral defense, and a mental arithmetic task. Results indicated that neither stress experienced over the lifetime or over the past year was related to baseline or reactive BP, HR, or cortisol levels. Other results assessing the interaction between the HPA axis and the …
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The association of working memory and anxiety with skill acquisition and transfer in young and older adults
… 1983). Participants were required to perform a mental arithmetic task in Experiment I, and a visual numerosity task in Experiment 2. In each experiment, participants received 240 trials of the task during u training phase (in which one set of stimuli were used) and 240 trials during a transfer …
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Effects of Encoding Variety and Concurrent-Task Practice on the Transfer and Retention of Complex Skill
… and specific declarative solutions. Two tasks--mental arithmetic and trigrams--were used to examine problem-solving skills and strategies both immediately following practice and again under delayed conditions. Eighty subjects were randomly assigned to one of four practice conditions by …
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