Title of Document: NONINVASIVE NEURAL DECODING OF OVERT AND COVERT HAND MOVEMENT Trent J. Bradberry, Doctor of Philosophy, 2010 Directed By: Associate Professor José L. Contreras-Vidal, Department of Kinesiology, Graduate Program in Neuroscience and Cognitive Science, Fischell Department of Bioengineering It is generally assumed that the signal-to-noise ratio and information content of neural d...

UNLABELLED The Farwell and Donchin P300 speller interface is one of the most widely used brain-computer interface (BCI) paradigms for writing text. Recent studies have shown that the recognition accuracy of the P300 speller decreases significantly when eye movement is impaired. This report introduces the GeoSpell interface (Geometric Speller), which implements a stimulation framework for a P300...

A particularly interesting and somewhat puzzling finding in the face-processing literature is that, despite the absence of overt recognition of most faces, many patients with acquired prosopagnosia (AP) exhibit evidence of intact covert face recognition of the very same faces. This phenomenon has important implications for the understanding of the mechanism underlying AP and, by extension, the ...

A case study approach was taken to examine the role of visual attention and auditory memory processes in eight adults with dyslexia, all of whom demonstrated phonological difficulties. The participants were administered a battery of neuropsychological tests and participated in an attentional cueing experiment. Individual data revealed that, although one adult with dyslexia showed overt visual a...

A growing body of research has suggested that narcissistic personality disorder (NPD) contains 2 factors or types: overt/grandiose and covert/vulnerable. A recent factor analysis of Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV), NPD symptoms supported a similar 2-factor model. The present research tested this proposed 2-factor solution against a 1-factor solutio...

In this paper, we propose a model to develop robots’ covert and overt perceptual capabilities using reinforcement and supervised learning. Covert perceptual behaviors are treated as actions selected by a motivational system. Overt perceptual behaviors can be learned using either supervised or reinforcement learning. We apply this model to the visionbased navigation system. Instead of dealing wi...