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Dissertations / Theses on the topic 'Attention – Physiological aspects'

Author: Grafiati

Published: 4 June 2021

Last updated: 31 January 2023

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1

Wong, Ting-ting Natalie. "Sustained attention in schizophrenia." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B29727686.

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2

Johnson, Jennifer Adrienne. "The behavioral and neural correlates of bimodal selective and divided attention to incongruent audiovisual events /." Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=111851.

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Humans live in a world rich in multisensory information. Often information reaching one sense is completely unrelated to information reaching another sense; that is, they are spatially and temporally incongruent. The goal of the research presented in this thesis was to elucidate the behavioral and neural bases of attention to incongruent audiovisual information. Five issues were addressed: (1) developing an appropriate behavioral paradigm to test bimodal attention, (2) understanding the role of crossmodal suppression in unimodal attention, (3) exploring the interaction of auditory and visual s

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3

Siegle, Greg Jeremy. "Cognitive and physiological aspects of attention to personally relevant negative information in depression /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 1999. http://wwwlib.umi.com/cr/ucsd/fullcit?p9935457.

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4

De, Gray Birch Casey. "The effects of sustained attention, workload and task-related fatigue on physiological measures and performance during a tracking task." Thesis, Rhodes University, 2012. http://hdl.handle.net/10962/d1005198.

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Despite extensive research into the concept of mental fatigue there is as yet no “gold standard” definition or measurement technique available. Because of this a large amount of fatigue-related errors are still seen in the workplace. The complexity of the problem lies with the inability to directly measure mental processes as well as the various endogenous and exogenous factors that interact to produce the experienced fatigue. Fatigue has been divided into sleep-related and task-related fatigue; however the task-related aspect is evident both during normal waking hours as well as during period

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5

Berman, Tamara. "Effects of methylphenidate on complex cognitive : processing in attention-deficit hyperactivity disorder." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0023/NQ50112.pdf.

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6

Joshi, Aditi A. "Effects of meditation training on attentional networks: A randomized controlled trial examining psychometric and electro-physiological (EEG) measures." Thesis, University of Oregon, 2007. http://hdl.handle.net/1794/8452.

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x, 133 p. ; ill. (some col.) A print copy of this title is available through the UO Libraries under the call number: SCIENCE QP405 .J67 2007<br>Meditation has been defined as a "group of practices that self-regulate the body and mind, thereby affecting mental events by engaging a specific attentional set" (Cahn & Polich, 2006). We conducted a randomized, longitudinal trial to examine the effects of concentrative meditation training (40 min/day, 5 days/week for 8 weeks) on top-down, voluntary control of attention with a progressive muscle relaxation training group as a control. To determ

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7

Stanislaus-Carter, Rudi. "Behavioural examination of the role of the thalamic reticular nucleus in attention." Thesis, University of St Andrews, 2017. http://hdl.handle.net/10023/16298.

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The ability to selectively attend to aspects of the environment which signal opportunity or danger, while marginalising irrelevant stimuli is critical to an animal's survival. With finite cognitive resources, the brain must dedicate resources to only those stimuli that are biologically significant. Incoming thalamic information must therefore be filtered. The thalamic reticular nucleus has long been considered critically involved in modulating thalamic sensory processing. Sharing connections with both the thalamus and cortex, it is ideally located to modulate the transfer of pertinent incoming

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8

Petrof, Iraklis. "Behavioural investigation of the role of caudal thalamic reticular nucleus in attention." Thesis, University of St Andrews, 2007. http://hdl.handle.net/10023/373.

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The thalamic reticular nucleus (TRN), and especially its caudal, sensory-related, half (cTRN), has been hypothesised for years to be at the very heart of thalamic sensory processing modulation, and attentional processes in particular. Very limited behavioural evidence is available, nonetheless, in support of such a functional attribution. In this thesis we carried out a series of investigations, combining immunocytochemical and lesion techniques with tests of behaviour, in order to examine the potential role of cTRN in attention and identify the attentional processes, if any, that it is more l

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9

Lee, Kangsoo, and 李岡洙. "Using EEG methodology to examine the effect of exercise induced fatigue on the direction of attention during motor skill performance." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/206744.

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Exercise induced fatigue can have a negative impact on motor skill performance. While part of the decline is attributable to physiological factors that directly influence the coordination of movement, psychological factors may also contribute. Typically, motor learning environments encourage the accumulation of task-relevant declarative knowledge, which can be depended on to consciously support performance. The literature suggests that skills learnt in this way are vulnerable to demanding performance environments, including those in which the performer is fatigued. Recent empirical work has de

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10

Shue, Karen L. "Attention deficit hyperactivity disorder and the frontal lobe syndrome." Thesis, McGill University, 1989. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=74239.

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The usefulness of frontal lobe (FL) dysfunction as a conceptual model for Attention Deficit Hyperactivity Disorder (ADHD) was investigated. Twenty-four ADHD and 24 normal control (NC) children were tested using tasks sensitive to FL deficits in motor control and problem solving skills and memory tasks sensitive to temporal lobe (TL) dysfunction. ADHD children differed significantly from NCs on measures of FL function, but not on tests of TL functions. Wherever norms were available for normal children on the same FL tests, ADHD subjects performed like 6 to 7 year olds, in spite of their mean ag

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11

Russell, William David. "The effects of a dissociative strategy of attention on ratings of perceived exertion during physical exercise." Virtual Press, 1992. http://liblink.bsu.edu/uhtbin/catkey/834509.

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The purpose of this investigation was to compare associative and dissociative psychological strategies of attentional focus for their effects on self - report ratings of perceived exertion (RPE), and heart rate during endurance exercise. Trained cyclists (n = 7) performed three 60 minute experimental rides on a bicycle ergometer which consisted of an association ride (attention focused on heart rate feedback), a dissociation ride (attention focused on responding to a cue word on a videotape), and a control condition ride in which focus of attention was not purposely manipulated. Results indica

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12

Glauert, Rebecca. "Body dissatisfaction and its relationship with the perceptual effects of exposure to bodies and attentional biases toward bodies." University of Western Australia. School of Psychology, 2008. http://theses.library.uwa.edu.au/adt-WU2008.0220.

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[Truncated abstract] Socio-cultural processes are often cited as one of the main causes of body dissatisfaction amongst women. Numerous studies have found that exposure to thin, idealized images in the media increases women's body dissatisfaction. The central aims of this thesis are to investigate how exposure to thin and fat bodies alters womens perceptions of body normality and body ideals, whether body dissatisfaction is related to these changes, and whether body dissatisfaction is associated with an attentional bias toward thin bodies. In Chapter 1 I review the main theories dominating bod

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13

Cleaveland, Bonnie L. "An attention allocation model for the effects of alcohol on aggression." Thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-10102009-020232/.

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14

Rogers, Jeffrey Michael. "Electrophysiological and neuropsychological assessment of automatic and controlled processing aspects of attention after mild traumatic brain injury." University of Western Australia. School of Psychology, 2007. http://theses.library.uwa.edu.au/adt-WU2007.0191.

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[Truncated abstract] Controlled and automatic processing are broad categories, and how best to measure these constructs and their impact on functioning after mild traumatic brain injury (TBI) remains uncertain. The purpose of this thesis was to examine automatic and controlled processing aspects of attention after mild TBI using the Paced Auditory Serial Addition Task (PASAT) and event-related potentials (ERPs). The PASAT is one of the most frequently used tests to evaluate attentional functioning. It has been demonstrated to be a measure sensitive to both acute and longer-term effects of mild

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15

Chaplin, Caley. "The factors affecting self-regulation through the analysis of physiological, psychological and behavioural measures during task-switching." Thesis, Rhodes University, 2013. http://hdl.handle.net/10962/d1006027.

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Individuals are required to manage multiple tasks which require strategic allocation of time and effort to ensure goals are reached efficiently. By providing the worker with autonomy over their work, performance and worker well-being have improved. This increased control allows individuals to organize work according to the needs of the body, which prevents fatigue leading to improved productivity. When given the option, humans tend to switch between tasks frequently. This behaviour can be used to determine the change in self-regulation strategies. An understanding of human task-switching behav

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16

Kedzior, Karina Karolina. "Chronic cannabis use and attention-modulated prepulse inhibition of the startle reflex in humans." University of Western Australia. School of Medicine and Pharmacology, 2004. http://theses.library.uwa.edu.au/adt-WU2004.0027.

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Background. Various studies show that cannabis use alters attention and cognitive functioning in healthy humans and may contribute to development of schizophrenia or worsening of pre-existing psychosis. However, the impact of cannabis use on brain function in humans is not well understood. Schizophrenia is associated with a deficit in prepulse inhibition (PPI), the normal inhibition of the startle reflex by a non-startling stimulus (prepulse), presented before the startle stimulus at short time intervals (lead-time intervals). Such PPI deficit is thought to reflect a sensorimotor gating dysfun

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17

Tau, Sethunya Harriet Hlobisa. "An analysis of regulatory mechanisms during sustained task execution in cognitive, motor and sensory tasks." Thesis, Rhodes University, 2013. http://hdl.handle.net/10962/d1006806.

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Fatigue is a state that, although researched for many years, is still not completely understood. Alongside this lack of a general understanding of fatigue is a lack of knowledge on the processes involved in the regulation of fatigue. The existing theories relating to regulation are focussed on mental effort regulation, suggesting that performance outcomes are co-ordinated by effort regulation that functions by making alterations to physiological processes and strategic adjustments at a cognitive level in response to cognitive demands and goals. Since fatigue is a multi-dimensional construct wi

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18

Zhang, Wujie. "Network Models of the Lateral Intraparietal Area." Thesis, 2016. https://doi.org/10.7916/D8MS3SP5.

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The monkey lateral intraparietal area (LIP) is involved in visual attention and eye movements. It has traditionally been studied using extracellular recording, where often a single neuron is recorded at a time. Thus we have a wealth of correlational knowledge of what LIP neurons do, but not how or why, i.e. we do not know the circuit mechanisms and functions of the observed LIP activity. In this thesis, we have aimed to uncover the circuit mechanisms underlying LIP activity by building tightly constrained computational models. In Part 1, we found that during two versions of a delayed-sa

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19

Van, Doren Jon Jay. "Remediation of sustained attention following traumatic brain injury: vigilance task training and the generalization of its effects." Thesis, 1991. https://dspace.library.uvic.ca//handle/1828/9567.

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Studies of sustained-attention retraining following brain injury are reviewed, and found to have produced inconclusive results. The reason for this, it is suggested, is that a standard operational analysis of attention has not been applied, as evidenced by considerable inconsistency in the dependent measures and treatment methods used from study to study. The present study addresses this concern by applying well established principles of operant conditioning to the analysis and remediation of attention deficits. After briefly reviewing the variety of task parameters in the attention literature

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20

Perrier, Erica Taylor. "Spinal reflex control in healthy and ACL-injured women during a distracting task." Thesis, 2011. http://hdl.handle.net/1957/23655.

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Female athletes exhibit three- to six-fold greater incidence of noncontact anterior cruciate ligament (ACL) injury relative to their male counterparts. The increased risk appears to stem from interactions between several risk factors, that can roughly be categorized as anatomic, biomechanical, hormonal, and neuromuscular. Neuromuscular risk factors have recently gained a greater focus, and include differences in the timing and magnitude of activation of lower extremity and trunk musculature. In addition to neuromuscular risk factors, the incidence of ACL injury is not evenly distributed acr

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21

Bauer, Tanja. "System response times in a simulated driving task : effects on performance, visual attention, subjective state and time estimation." Diss., 2009. http://hdl.handle.net/10500/2610.

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The utilisation of navigation systems in cars has given rise to road safety concerns, and the design and functionality of such systems must therefore be adjusted to the users’ needs, since they have to divide their attention between driving and the operation of the navigation system. The study was aimed at finding the optimum system response time (SRT) which would enable a driver to focus as much as possible on the road while attaining an efficient task completion time using an electronic navigational system. The research project consists of two separate experiments and was completed by 10 sub

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22

Coskunpinar, Ayca. "The relationship between trait impulsivity and alcohol related attentional biases." Thesis, 2015. http://hdl.handle.net/1805/7904.

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Indiana University-Purdue University Indianapolis (IUPUI)<br>Harmful alcohol use is a global concern, which has made research in this area a prime public health interest. Previous research has identified alcohol-related attentional biases (Cox et al., 2002, 2007; Marissen et al., 2006; Streeter et al., 2008) and impulsivity (see Acton, 2003; Dick et al., 2010; Mulder, 2002) as two important predictors that affect alcohol use, seeking, and relapse (Cox et al., 2002; Robbins & Ehrman, 2004). Recent review of the literature has also revealed that there is a significant relationship between these

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23

Karyadi, Kenny. "The effects of alcohol odor cues on food and alcohol attentional bias, cravings, and consumption." Thesis, 2015. http://hdl.handle.net/1805/7986.

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Indiana University-Purdue University Indianapolis (IUPUI)<br>In order to elucidate the role of classical conditioning in food and alcohol co-consumption, the present study examined: (1) the effects of alcohol odor cues on alcohol and food cravings and attentional bias (bias in selective attention toward either food or alcohol pictures relative to neutral pictures); and (2) the role of alcohol odor cue elicited cravings and attentional biases on subsequent consumption. Participants (n = 77; mean age = 30.84, SD = 9.46; 51.9% female, 83.1% Caucasian) first completed the lab portion of the study.

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