34,212 research outputs found
The Fringe: A Case Study in Explanatory Phenomenology
William Jamesâ greatest achievement is, arguably, his analysis of the fringe â or, as he sometimes called it, transitive experience. In trying to understand this vague, elusive, often peripheral aspect of consciousness, James broke new ground. But in so doing he also began to lay down the first stratum of a radically new methodology, one that intersects first- and third-person findings in such a way that each is able to interrogate the other, and so further our understanding of both....\ud
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But I think it is important to see that explanatory phenomenology can be completely scientific without necessarily having to (1) consider the neural substrate, (2) employ reductive arguments, or (3) operate at the third-person level. If I am right, explanatory phenomenology can be a remarkably plastic member of the set of first-person methodologies for the study of consciousness
Representation, Rightness, and the Fringe
So the central question here is phenomenological: What is the nature of the aesthetic zap? For it is this experience, or its promise, which gives art such a deep hold on human life. But the issue of representation, while secondary, is still pregnant with cognitive implications: Why is representation, of all the devices available to an artist, more likely to shift the odds in favour of eliciting and/or intensifying aesthetic experience? Assuming a Darwinian view of our species, it is likely that the answer to both questions will come from understanding how our capacity to enjoy art grows out of normal cognition
Volition and Property Dualism
My overall aim here is to intersect two issues central to Max Velmansâ (2002) wide-ranging paper. The first concerns one of the most vexing problems in consciousness research â how best to approach the terms âmentalâ and âphysicalâ. The second looks at the phenomenology of volition, and the degree to which information presumably necessary for making voluntary conscious decisions is, or is not, present in consciousness
Comments on the Aharonov-Casher effect
We study the basic requirements for neutron confinement in the framework of
some 3-D Aharonov-Casher configurations.Comment: To appear in Physica Scripta (2001
Quantifying the Statistical Impact of GRAPPA in fcMRI Data with a Real-Valued Isomorphism
The interpolation of missing spatial frequencies through the generalized auto-calibrating partially parallel acquisitions (GRAPPA) parallel magnetic resonance imaging (MRI) model implies a correlation is induced between the acquired and reconstructed frequency measurements. As the parallel image reconstruction algorithms in many medical MRI scanners are based on the GRAPPA model, this study aims to quantify the statistical implications that the GRAPPA model has in functional connectivity studies. The linear mathematical framework derived in the work of Rowe , 2007, is adapted to represent the complex-valued GRAPPA image reconstruction operation in terms of a real-valued isomorphism, and a statistical analysis is performed on the effects that the GRAPPA operation has on reconstructed voxel means and correlations. The interpolation of missing spatial frequencies with the GRAPPA model is shown to result in an artificial correlation induced between voxels in the reconstructed images, and these artificial correlations are shown to reside in the low temporal frequency spectrum commonly associated with functional connectivity. Through a real-valued isomorphism, such as the one outlined in this manuscript, the exact artificial correlations induced by the GRAPPA model are not simply estimated, as they would be with simulations, but are precisely quantified. If these correlations are unaccounted for, they can incur an increase in false positives in functional connectivity studies
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