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Neural events underlying perception of coherent motion are generally believed to be hierarchical: information about local motion is registered by spatio-temporal coincidence detectors whose outputs are cooperatively integrated at a subsequent stage. There is disagreement, however, concerning the spatial scale of the neural filters underlying these(More)
Dichoptically viewed complex texture stereograms with correlated spatial frequency information can yield stable depth perception, implying cooperative interaction between the two eyes. Dichoptically viewed dissimilar texture pairs may yield competition in the form of binocular rivalry. To study whether stereopsis and rivalry can spatially coexist when(More)
Component visual features of objects are registered by distributed patterns of activity among neurons comprising multiple pathways and visual areas. How these distributed patterns of activity give rise to unified representations of objects remains unresolved, although one recent, controversial view posits temporal coherence of neural activity as a binding(More)
Upon dichoptic viewing of dissimilar patterns, several distinct perceptual states may be experienced over time. One state is exclusive monocular dominance, wherein the view of only one eye is seen in its entirety for some period of time. Another state is characterized by a mosaic-like college consisting of portions of the view of each eye. Two other states(More)
Contrast thresholds of Gabor targets presented after sine-wave grating maskers were measured. All the patterns were isochromatic. The duration of both masker and target was 33 ms. The interstimulus interval was 33 ms. Masker spatial frequency, masker contrast, and target frequency were varied. Two experiments were conducted. In the first there were four(More)
The origin of magnetic order in metals has two extremes: an instability in a liquid of local magnetic moments interacting through conduction electrons, and a spin-density wave instability in a Fermi liquid of itinerant electrons. This dichotomy between 'local-moment' magnetism and 'itinerant-electron' magnetism is reminiscent of the valence bond/molecular(More)
Results of gene expression microarray and quantitative PCR studies have suggested abnormalities in the expression of myelin-related genes including myelin-associated glycoprotein (MAG) in schizophrenic patients. Research provides strong evidence for oligodendrocyte dysfunction in schizophrenics. In order to further assess the role of MAG in schizophrenia,(More)
BACKGROUND Protein-protein interactions are a pivotal component of many biological processes and mediate a variety of functions. Knowing the tertiary structure of a protein complex is therefore essential for understanding the interaction mechanism. However, experimental techniques to solve the structure of the complex are often found to be difficult. To(More)