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 “"Erps"”.
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Semantic memory: Explorations in behavior and ERPs
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-12-04 without embargo terms
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Physical activity for the brain, but for whom? An individual difference investigation of the FITKids clinical trial on cognitive control and ERPs in children
The present dissertation examined the interaction of cardiorespiratory fitness, socioeconomic status (SES), and sex to cognitive control outcomes associated with a 9-month physical activity intervention (FITKids clinical trial) in preadolescent children. This was accomplished by randomizing three …
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Joint time-frequency analysis and filtering of single trial event-related potentials.
… (EEG). Event related potentials (ERPs) are voltage deviations in the EEG elicited in association with stimuli. Their elicitation require cognitive processes such as response to a recognised stimulus. ERPs therefore provide clinical information by allowing an insight into …
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ERP correlates of the interactions between top-down and bottom-up processes in visual object categorization
… processes have been shown to modulate the visual ERPs. The present research investigates how physical features (such as amplitude spectrum and spatial frequency) and top-down processes (the categorization task that the participants perform) interact and modulate the visual ERPs. We found ERP …
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The value of Enterprise Resource Planning (ERP) Systems in Companies: Case study of Lesotho
… such as Enterprise Resource Planning systems (ERPs) to cope with the dynamic business environment. Despite the continued popularity of ERPs, the literature has shown that ERP failure is a major challenge facing organisations. Findings concerning the benefits that organisations accrue from the …
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Electrophysiological correlates of orienting retrieval to remote and recent memories : effects of an episodic specificity induction
… employed event-related brain potentials (ERPs) to investigate differences in how individuals orient retrieval to memories from different times. Experiment 1 investigated whether ERP effects of orienting to remote and recent memories were distinct from effects of retrieval difficulty by …
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Use of cell wall-hydrolytic enzymes in studies of the reticuloendothelial-stimulatory properties of Propionibacterium acnes
… PVL enzyme-released cell wall polysaccharide (ERPS). Although antigenically similar, the ERPS had a higher molecular weight than TCA-PS, indicating that the TCA-PS had been hydrolyzed somewhat during acid-extraction and that ERPS is representative of the native cell wall polysaccharide. TCA-PS …
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The Effects of Self-Relevance on Neural Learning Signals Indexing Attention, Perception, and Learning
… were analyzed for event-related potentials (ERPs) elicited by target photos and gambling outcomes. Post experiment, I examined the relationship between relatedness and the amplitude reward learning ERPs, namely the reward positivity and the P300, with one-way repeated measures analyses of …
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Der Kompatibilitätseffekt in der Zahlenverarbeitung : eine ereigniskorrelierte EEG-Untersuchung
… effect by recording event-related potentials (ERPs) in 12 healthy participants engaged in a magnitude comparison task. While there were only minor differences between compatible and incompatible trials in stimulus-locked ERPs, response-locked ERPs revealed a significant compatibility effect …
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Mild Traumatic Brain Injuries and Their Implications on Changes in Event Related Potentials: A look into Visual Gating (P50)
… study the changes in event related potentials (ERPs) associated with sensory gating and how this cognitive property is affected in those who have a self-reported concussion. Here we show that a visual attention and gating mechanism exists in both populations (control and concussed) as seen by …
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Different Pathways To Cognition: An Erp Investigation of Enhanced Perceptual Functioning And Autistic Traits in School-aged Children
… between autistic traits, early perceptual ERPs, and subsequent cognitive ERPs in neurotypical adults; however, these relationships have yet to be explored in autistic and neurotypical children and adolescents. The goals of the current study were to test how the relationship between early …
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Collaborative Brain-Computer Interfaces in Rapid Image Presentation and Motion Pictures
… BCIs based on event-related potentials (ERPs). The objectives are: (1) to study and compare different methods of creating groups using exclusively electroencephalography (EEG) signals, (2) to develop a theoretical model to establish where the highest gains may be expected from creating …
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Great (Syntactic) Expectations: Multiple Structures and the Case for Parallelism in Language Processing
Event-related brain potentials (ERPs) are used to address a controversial issue in language-processing research, namely whether the parser proposes more than one possibility for how a sentence will continue. Relatively little research has used ERPs to answer this question, and previous studies have …
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Automatic Processing of Musical and Phonemic Sounds: Differences Between Musicians and Nonmusicians
… as assessed by event-related potentials (ERPs), compared with nonmusicians. Participants were musicians (N=22; at least 10 years of formal training) and nonmusicians (N=22; no musical training) from the Virginia Tech community. Participants focused on a video and were instructed to ignore …
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Thought and action: Event-related potentials and behaviour in a primed and speeded lexical decision task.
… response processes, event-related potentials (ERPs) were recorded from 10 subjects during semantically primed lexical decisions in an Accuracy condition (response deadline 700 msec) and a Speed condition (deadline 450 msec). Targets were the prime's antonym, an unrelated word, or a nonword. The …
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Event-Related Potentials Correlated with State/Trait Anxiety Using Auditory Stimuli
… with the use of event-related potentials (ERPs) and auditory stimuli. Prior research has focused on anxiety, visual stimuli, experimental tasks, and how ERP components relate to them. Few of the studies used auditory stimuli. This study proposes that the P2, P3, and late positive potential …
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The influence of semantics on the visual processing of natural scenes
… visual stimuli? Using Event Related Potentials (ERPs) and good and bad exemplars of natural scenes, we show that top-down expectation, initiated via a category cue (e.g. the word ‘Beach’), dynamically influences the processing of natural scenes. Good and bad exemplars first evoked differential …
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Electrophysiological systems underlying human domain-general cognition and selective attention
… alpha oscillations and event-related potentials (ERPs) in selective attention. I first analyse the temporal dynamics of alpha oscillations and ERPs in encoding attentional information using EEG. Then, I apply rhythmic-TMS (rh-TMS) at individual alpha frequency over the right intraparietal sulcus …
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A Psychophysiological Assessment of the Efficacy of Event-Related Potentials and Electroencephalogram for Adaptive Task Allocation
… (EEG) and Event-Related Potentials (ERPs) for making task allocations decisions. Thirty-six participants were randomly assigned to an experimental, yoked, or control group condition. Under the experimental condition, a compensatory tracking task was switched between manual and …
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Developmental differences in social learning
… we found en-hanced event-related potentials (ERPs), as well as, more pronounced imitative choice be-havior when observing peers compared to non-peers (i.e., young adults). (2) Children learned more slowly than adults from peer behavior and showed difficulties to use observed feed-back for …
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