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Articles 1 - 9 of 9
Full-Text Articles in Entire DC Network
Emotion And Cognition Analysis Of Intro And Senior Cs Students In Software Engineering, Justin Evans
Emotion And Cognition Analysis Of Intro And Senior Cs Students In Software Engineering, Justin Evans
Master's Theses
he software engineering community has advanced the field in the past few decades towards making the software development life cycle more efficient, robust, and streamlined. Advances such as better integrated development environments and agile workflows have made the process more efficient as well as more flexible. Despite these many achievements software engineers still spend a great deal of time writing, reading and reviewing code. These tasks require a lot of attention from the engineer with many different variables affecting the performance of the tasks. In recent years many researchers have come to investigate how emotion and the way we think …
Interpolated Perturbation-Based Decomposition As A Method For Eeg Source Localization, Gabriel Zelik Lipof
Interpolated Perturbation-Based Decomposition As A Method For Eeg Source Localization, Gabriel Zelik Lipof
Master's Theses
In this thesis, the perturbation-based decomposition technique developed by Szlavik [1] was used in an attempt to solve the inverse problem in EEG source localization. A set of dipole locations were forward modeled using a 4-layer sphere model of the head at uniformly distributed lead locations to form the vector basis necessary for the method. Both a two-dimensional and a pseudo-three-dimensional versions of the model were assessed with the two-dimensional model yielding decompositions with minimal error and the pseudo-three-dimensional version having unacceptable levels of error. The utility of interpolation as a method to reduce the number of data points to …
Comprehending Events On The Fly: Inhibition And Selection During Sentence Processing, Yanina Prystauka
Comprehending Events On The Fly: Inhibition And Selection During Sentence Processing, Yanina Prystauka
Master's Theses
In our everyday conversations we talk about how things or people change. Instantiations of objects in their different states need to be maintained during language comprehension for future selection of the relevant state, as in The chef will chop the onion. And then/but first, she will weigh the onion. Previous fMRI studies (Solomon et al, 2015) demonstrated that selecting between multiple competing representations of the same object token, such as the intact and the chopped onion, elicits increased activation in the brain area associated with conflict resolution -- left pVLPFC. When there is no cue to the earlier introduced …
Eeg Characterization During Motor Tasks That Are Difficult For Movement Disorder Patients, Adam Joshua Aslam
Eeg Characterization During Motor Tasks That Are Difficult For Movement Disorder Patients, Adam Joshua Aslam
Master's Theses
Movement disorders are a group of syndromes that often arise due to neurological abnormalities. Approximately 40 million Americans are affected by some form of movement disorder, significantly impacting patients’ quality of life and their ability to live independently. Deep brain stimulation (DBS) is one treatment that has shown promising results in the past couple decades, however, the currently used open-loop system has several drawbacks. By implementing a closed-loop or adaptive DBS (aDBS) system, the need for expensive parameter reprogramming sessions would be reduced, side-effects may be relieved, and habituation could be avoided. Several biomarkers, for example signals or activity derived …
Neurophysiological Characteristics Of Magnetic Seizure Therapy Vs. Electroconvulsive Therapy In Geriatric Patients With Severe Depression, Monica T. Ly
Master's Theses
Objective: Magnetic seizure therapy (MST) is under development as an alternative to electroconvulsive therapy (ECT), as it offers reduction in depression symptoms with fewer adverse cognitive effects. This study examined the feasibility and efficacy of MST versus ECT in a randomized trial of geriatric patients with severe depression, then compared the neurophysiological characteristics of seizures induced by MST or ECT and investigated potential links between seizure expression and therapeutic response.
Method: Six patients (mean age: 64.8) with severe depression were randomized to receive MST (n=3) or ECT (n=3) until maximal antidepressant effect (mean number of sessions: 14.67). Depression symptoms were …
Effects Of Active And Observational Experience On Eeg Activity During Early Childhood, Lauren Bryant
Effects Of Active And Observational Experience On Eeg Activity During Early Childhood, Lauren Bryant
Master's Theses
How we encode and understand others’ actions is a core problem in social learning. In recent decades, the human neural mirroring system (NMS) has been implicated as a potential neural mechanism of action understanding. To investigate the effects of experience on NMS activity, we manipulated 3– to 6-year-old children’s (N = 16) active and observational experience with two tools and then examined EEG mu (7-10 Hz) and central beta rhythm (17-21 Hz) desynchronization as measures of NMS activity during observation and execution of these actions. Children exhibited neural mirroring within both individualized and standard mu bands. Although mu and …
Neural Correlates Of Inhibitory Function Following The Implicit Processing Of Emotional Faces, Lorri A. Kais
Neural Correlates Of Inhibitory Function Following The Implicit Processing Of Emotional Faces, Lorri A. Kais
Master's Theses
Emotion and cognitive function interact to play a central role in determining
human thought and behavior. Attention to emotion can facilitate or hinder cognitive
control efforts based on the given contextual demands of the task at hand. This study used
scalp electroencephalography (EEG) methods to examine the link between valence of
facial stimuli and neural changes associated with emotional face processing and
subsequent inhibitory response. 20 participants completed a gender discrimination stop-
signal task using emotional faces. Facial valence did not differentially modulate the P200
event-related potential (ERP), indicating that happy and sad faces recruit similar neural
resources in the …
Theta Dynamics: Speed, Acceleration And Contribution To Cognition, Lauren L. Long
Theta Dynamics: Speed, Acceleration And Contribution To Cognition, Lauren L. Long
Master's Theses
No abstract provided.
Low Cost Neurochairs, Frankie Pike
Low Cost Neurochairs, Frankie Pike
Master's Theses
Electroencephalography (EEG) was formerly confined to clinical and research settings with the necessary hardware costing thousands of dollars. In the last five years a number of companies have produced simple electroencephalograms, priced below $300 and available direct to consumers. These have stirred the imaginations of enthusiasts and brought the prospects of "thought-controlled" devices ever closer to reality. While these new devices were largely targeted at video games and toys, active research on enabling people suffering from debilitating diseases to control wheelchairs was being pursued. A number of neurochairs have come to fruition offering a truly hands-free mobility solution, but whether …