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 121 for “"P300"”.
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Absolute Pitch and the P300: A Neuromusicological Study
… in the contour and visual tasks do elicit P300's from both AP and RP subjects, the amplitude of the P300 elicited from the AP subjects in the pitch memory task is significantly smaller than that of the controls. There is also a substantial intragroup variance in the AP group. The hypothesis …
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Auditory P300 In College-Aged Females At-Risk for Eating Disorders
… eating disorders has been widely documented. The P300 component of event-related potentials has demonstrated efficacy in identifying individuals who suffer from mental disorders and cognitive deficits. More recently, a number of researchers have used P300 event-related potentials (ERPs) to …
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Role of P300 Zz Domain In Chromatin Association and Histone Acetylation
… including transcription coactivators. The p300 protein and its close paralogue CREB-binding protein (CREBBP, aka CBP) are well-known transcriptional coactivators that have intrinsic lysine acetyltransferase activity. The functions of p300/CBP largely rely on their capabilities to bind to …
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Evaluation Of Paradigms For A P300 Based Brain Computer Interface Speller
… interface (BCI) virtual speller using the P300 signal. The paradigms consist of electrodes to record electroencephalogram signal (EEG), software to analyze the data, and a computer where the subject's EEG is the input for a virtual keyboard. There were three experiments that were …
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fMRT der P300: Modifikation der klassischen EEG-Untersuchung für die fMRT
… abgeleiteten Ereignis-evozierten Potentiale der P300, mit der funktionellen Magnetresonanztomographie (fMRT) zu untersuchen. Es wurde ein spezielles für die fMRT geeignetes Paradigma, welches sich an dem klassischen EEG-Paradigma orientierte, entwickelt, und an neun gesunden Probanden getestet. …
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Improving Brain-Computer Interface Performance: Giving the P300 Speller Some Color.
<p>Individuals who suffer from severe motor disabilities face the possibility of the loss of speech. A Brain-Computer Interface (BCI) can provide a means for communication through non-muscular control. Current BCI systems use characters that flash from gray to white (GW), making adjacent character …
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Classification of P300 from non-invasive EEG signal using convolutional neural network
… of the brain signal employed in its operation. P300 Speller, a well-known BCI system, which helps the user select the desired alphabet in the communication process uses an Electroencephalography signal called P300 brain wave. The spatiotemporal nature and the low Signal-to-noise ratio along with …
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Psichikos sutrikimų tyrimas ir jų gydymo įvertinimas klausos sukelto potencialo P300 metodu /
… auditory system using event-related potential P300 recording and analysis method. Auditory P300 potential was elicited applying “odd-ball” paradigm and recorded at 3 electrode sites (Fz, Cz, Pz). 4 parameters of P300 potential were measured: N2 latency, P300 latency, P300 amplitude and …
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N200 and P300 Evoked by Stimuli Straddling Category Boundary in Lexical Context
… Event-related potentials (ERPs) like N200 and P300 have been reported to reflect the categorical perception of speech. The purpose of the present study is to explore whether these ERP components reflect the influence of lexical context on categorical perception. Findings may provide evidence …
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The P300 and Stages of Human Information Processing: An Additive Factors Study
The P300 is an event-related brain potential (ERP) recorded at the scalp following the presentation of a task-relevant stimulus. Several investigators have found that the latency of P300 covaries with reaction time (RT) in discrimination and categorization tasks. However, other investigators have …
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P300 Topographic Differences Between Smokers and Nonsmokers During a Visual Continuous Performance Task
… information processing and attention. Recently, P300 event-related potentials (ERPs) have been utilized to examine the effects of nicotine and smoklng on brain activity and information processing. These previous results indicate that nicotine decreases P300 latency and increases P300 amplitude, …
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Auditory Evoked Potentials: the Effects of Sleep Deprivation and Recovery Time For the P300
… integrity of the auditory neural pathways. The P300 is an endogenous AEP response that requires the subject to cognitively process the auditory signal in order to get a response. The P300 is thought to reflect neuroelectric activity related to cognitive processes such as attention and memory. …
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P300-Based BCI Performance Prediction through Examination of Paradigm Manipulations and Principal Components Analysis.
… A brain-computer interface (BCI) using the P300 event-related potential provides communication that does not depend on neuromuscular activity and can be useful for those with LIS. Currently, there is no way of determining the effectiveness of P300-based BCIs without testing a person's …
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Manipulating Paradigm and Attention via a Mindfulness Meditation Training Program Improves P300-Based BCI.
… attentional resources in an effort to improve P300-BCI performance. The current study implements a 4-week Mindfulness Meditation Training Program (MMTP) as a nonmedicinal means to increase concentrative attention and to reduce lapses of attention; MMTP is expected to improve P300-BCI …
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The Processing of Stimulus Attributes: Evidence for Dual-Task Integrality (Erp, P300, Time Sharing)
… is inferred from changes in the amplitude of the P300 component of the Event-Related Brain Potential.
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Entwicklung und Habituation der P300 EKP-Komponente bei Kindern und Jugendlichen mit und ohne Migräne
… bei Kindern und Jugendlichen mit Migräne im EKP P300 findet und ob ein Zusammenhang mit dem Alter besteht. Da bislang auch für gesunde Kinder und Jugendliche keine breite Datenbasis zur Verfügung steht, wurden in einer vorgeschalteten Analyse Referenzmodelle anhand der Daten der gesunden Kinder …
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An offline multi-class auditory P300 brain-computer interface using principal and independent component analysis
This thesis investigated a multi-class auditory P300 BCI as a step towards FES applicability. A multi-class P300 paradigm approach provides degrees-of-freedom in operating an FES device over the traditional P300 paradigm. Accuracy in classification of target P300s contributes to the paradigm's …
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THE RELATIONSHIP BETWEEN P300 EVOKED POTENTIALS AND PREFRONTAL CORTEX OXYGEN USE: A COMBINED EEG AND NIRS STUDY
<p>The P300 subcomponent, P3b, is an event related potential detected at the scalp surface when a working memory comparison results in differences between the contents of working memory and incoming stimulus information. Previous research has indicated that as infrequent targets become more …
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Studies of the Molecular Features of Brd4-Nut and P300 That Contribute to Condensate Formation and Transcriptional Regulation
… Brd4-Nut and a histone acetyltransferase (HAT), p300, and analyzed their contribution to condensate formation and transcriptional changes. I determined that a minimal fragment of Nut (MIN) in fusion with Brd4 is necessary and sufficient for binding to p300, and for condensate formation. A …
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