Search results for 'Tomography' (try it on Scholar)

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  1. Mark Sherer, Tessa Hart, John Whyte, Toad G. Nick & Stuart A. Yablon (2005). Neuroanatomic Basis of Impaired Self-Awareness After Traumatic Brain Injury: Findings From Early Computed Tomography. Journal of Head Trauma Rehabilitation. Special Issue 20 (4):287-300.score: 21.0
  2. Howard Barnum & Alexander Wilce (2014). Local Tomography and the Jordan Structure of Quantum Theory. Foundations of Physics 44 (2):192-212.score: 21.0
    Using a result of H. Hanche-Olsen, we show that (subject to fairly natural constraints on what constitutes a system, and on what constitutes a composite system), orthodox finite-dimensional complex quantum mechanics with superselection rules is the only non-signaling probabilistic theory in which (i) individual systems are Jordan algebras (equivalently, their cones of unnormalized states are homogeneous and self-dual), (ii) composites are locally tomographic (meaning that states are determined by the joint probabilities they assign to measurement outcomes on the component systems) (...)
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  3. C. Carmeli, G. Cassinelli & F. Zizzi (2009). Generalized Orthogonality Relations and SU(1,1)-Quantum Tomography. Foundations of Physics 39 (6):521-549.score: 21.0
    We present a mathematically precise derivation of some generalized orthogonality relations for the discrete series representations of SU(1,1). These orthogonality relations are applied to derive tomographical reconstruction formulas. Their physical interpretation is also discussed.
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  4. V. I. Man'ko (1998). Dynamical Symmetries and Tomography. Foundations of Physics 28 (3):429-438.score: 18.0
    The notion of dynamical symmetry is discussed in the framework of the symplectic tomography scheme for the harmonic oscillator. The stationary states are shown to appear as solutions to eigenvalue equation for “classical” probabilities. All the probabilities describing the energy levels are constructed using dynamical-symmetry operators.
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  5. Kathrin Friedrich (2010). 'Sehkollektiv': Sight Styles in Diagnostic Computed Tomography. [REVIEW] Medicine Studies 2 (3):185-195.score: 18.0
    This paper aims to trace individual as well as collective aspects of ‘sight styles’ in diagnostic computed tomography. Radiologists need to efficiently translate the visualized data from the living human body into a reliable and significant diagnosis. During this process, their visual thinking and the created images are incorporated into a complex network of other visualizations, communication strategies, professional traditions, and (tacit) visual knowledge. To investigate the interplay of collective as well as individual dimensions of diagnostic seeing, the concept (...)
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  6. N. Galldiks, A. Thiel, C. Haense, G. R. Fink & R. Hilker (2008). 11 C-Flumazenil Positron Emission Tomography Demonstrates Reduction of Both Global and Local Cerebral Benzodiazepine Receptor Binding in a Patient with Stiff Person Syndrome. Journal of Neurology 255 (9).score: 18.0
    Stiff Person Syndrome (SPS) is a rare autoimmune disorder associated with antibodies against glutamic acid decarboxylase (GAD-Ab), the key enzyme in γ -aminobutyric acid synthesis (GABA). In order to investigate the role of cerebral benzodiazepinereceptor binding in SPS, we performed [ 11 C]flumazenil (FMZ) positron emission tomography (PET) in a female patient with SPS compared to nine healthy controls. FMZ is a radioligand to the postsynaptic (...)
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  7. Stefano Mancini, Vladimir I. Man'ko & Paolo Tombest (1997). Classical-Like Description of Quantum Dynamics by Means of Symplectic Tomography. Foundations of Physics 27 (6):801-824.score: 15.0
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  8. Ilkka Niiniluoto (2011). Abduction, Tomography, and Other Inverse Problems. Studies in History and Philosophy of Science Part A 42 (1):135-139.score: 15.0
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  9. Neal R. Cutler & Prem K. Narang (forthcoming). Alzheimer's Disease, Dementia and Down Syndrome: An Evaluation Using Positron Emission Tomography (PET). Journal of Mind and Behavior.score: 15.0
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  10. S. J. Gibowicz (1999). Seismic Tomography, Earth's Inner Core, and Earthquake Source Mechanism. Dialogue and Universalism 9:8-11.score: 15.0
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  11. N. Hema Rajini & R. Bhavani (2014). Automatic Classification of Computed Tomography Brain Images Using ANN, K-NN and SVM. AI and Society 29 (1):97-102.score: 15.0
  12. Dirk Marwede & James Matthew Fielding (2007). Entities and Relations in Medical Imaging: An Analysis of Computed Tomography Reporting. Applied Ontology 2 (1):67-79.score: 15.0
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  13. Gerry McDermott, Douglas M. Fox, Lindsay Epperly, Modi Wetzler, Annelise E. Barron, Mark A. Le Gros & Carolyn A. Larabell (2012). Visualizing and Quantifying Cell Phenotype Using Soft X‐Ray Tomography. Bioessays 34 (4):320-327.score: 15.0
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  14. E. Reiman, R. Lane, G. Ahern, R. Davidson & G. Schwartz (2000). Positron Emission Tomography in the Study of Emotion, Anxiety and Anxiety Disorders. In Richard D. R. Lane, L. Nadel, G. L. Ahern, J. Allen & Alfred W. Kaszniak (eds.), Cognitive Neuroscience of Emotion. Oxford University Press.score: 15.0
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  15. Barry Snow (1993). Seeing Yourself Think Exploring Brain Functional Anatomy with Positron Emission Tomography (1991). By D. J. Chadwick and J. Whelan. Ciba Foundation Symposium 163 (Ed. R. Porter). John Wiley and Sons, Chichester. Pp. Ix+287. £43.50. ISBN 0‐471‐92970‐0. [REVIEW] Bioessays 15 (7):496-497.score: 15.0
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  16. L. R. Tancredi & N. D. Volkow (1992). A Theory of the Mind/Brain Dichotomy with Special Reference to the Contribution of Positron Emission Tomography. Perspectives in Biology and Medicine 35 (4):549.score: 15.0
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  17. George Goldenberg, Ivo Podreka & Margarete Steiner (1990). The Cerebral Localization of Visual Imagery: Evidence From Emission Computerized Tomography of Cerebral Blood Flow. In P. J. Hampson, D. F. Marks & Janet Richardson (eds.), Imagery: Current Developments. Routledge.score: 15.0
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  18. S. H. Kienle, M. Freyberger, W. P. Schleich & M. G. Raymer (forthcoming). Quantum Beam Tomography. Boston Studies in the Philosophy of Science.score: 15.0
     
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  19. M. E. Phelps (1991). The Evolution of Positron Emission Tomography. In P. Corsi (ed.), The Enchanted Loom: Chapters in the History of Neuroscience. Oxford University Press.score: 15.0
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  20. E. M. Reiman, Richard D. R. Lane, G. L. Ahern & Gary E. Schwartz (1996). Positron Emission Tomography, Emotion, and Consciousness. In S. Hamreoff, Alfred W. Kaszniak & A. C. Scott (eds.), Toward a Science of Consciousness. MIT Press.score: 15.0
  21. Herbert Rinneberg (1995). Scattering of Laser Light in Turbid Media: Optical Tomography for Medical Diagnostics?. In. In Heinz Lübbig (ed.), The Inverse Problem. Akademie Verlag Und Vch Weinheim. 107--141.score: 15.0
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  22. Sm Stahl, R. Moratalla & Ng Bowery (1988). Neurotransmitter Receptor Imaging in Living Human-Brain with Positron Emission Tomography. Journal of Mind and Behavior 9 (3):367-384.score: 15.0
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  23. Joseph C. Wu, Benjamin V. Siegel, Richard J. Haier & Monte S. Buchsbaum (1990). Testing the Swerdlow/Koob Model of Schizophrena Pathophysiology Using Positron Emission Tomography. Behavioral and Brain Sciences 13 (1):168-170.score: 15.0
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  24. Yuji Hasegawa (2012). Entanglement Between Degrees of Freedom in a Single-Particle System Revealed in Neutron Interferometry. Foundations of Physics 42 (1):29-45.score: 9.0
    Initially Einstein, Podolsky, and Rosen (EPR) and later Bell shed light on the non-local properties exhibited by subsystems in quantum mechanics. Separately, Kochen and Specker analyzed sets of measurements of compatible observables and found that a consistent coexistence of these results is impossible, i.e., quantum indefiniteness of measurement results. As a consequence, quantum contextuality, a more general concept compared to non-locality, leads to striking phenomena predicted by quantum theory. Here, we report neutron interferometric experiments which investigate entangled states in a (...)
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  25. Pekka Lahti & Juha-Pekka Pellonpää (2010). On the Complementarity of the Quadrature Observables. Foundations of Physics 40 (9-10):1419-1428.score: 9.0
    In this paper we investigate the coupling properties of pairs of quadrature observables, showing that, apart from the Weyl relation, they share the same coupling properties as the position-momentum pair. In particular, they are complementary. We determine the marginal observables of a covariant phase space observable with respect to an arbitrary rotated reference frame, and observe that these marginal observables are unsharp quadrature observables. The related distributions constitute the Radon transform of a phase space distribution of the covariant phase space (...)
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  26. Lucien Hardy & William K. Wootters (2012). Limited Holism and Real-Vector-Space Quantum Theory. Foundations of Physics 42 (3):454-473.score: 9.0
    Quantum theory has the property of “local tomography”: the state of any composite system can be reconstructed from the statistics of measurements on the individual components. In this respect the holism of quantum theory is limited. We consider in this paper a class of theories more holistic than quantum theory in that they are constrained only by “bilocal tomography”: the state of any composite system is determined by the statistics of measurements on pairs of components. Under a few (...)
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  27. Dagmar Müller, Andreas Widmann & Erich Schröger (2013). Object-Related Regularities Are Processed Automatically: Evidence From the Visual Mismatch Negativity. Frontiers in Human Neuroscience 7.score: 9.0
    One of the most challenging tasks of our visual systems is to structure and integrate the enormous amount of incoming information into distinct coherent objects. It is an ongoing debate whether or not the formation of visual objects requires attention. Implicit behavioural measures suggest that object formation can occur for task-irrelevant and unattended visual stimuli. The present study investigated pre-attentive visual object formation by combining implicit behavioural measures and an electrophysiological indicator of pre-attentive visual irregularity detection, the visual mismatch negativity (...)
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  28. Sharna Jamadar, Joanne Fielding & Gary Egan (2013). Quantitative Meta-Analysis of fMRI and PET Studies Reveals Consistent Activation in Fronto-Striatal-Parietal Regions and Cerebellum During Antisaccades and Prosaccades. Frontiers in Psychology 4.score: 9.0
    The antisaccade task is a classic task of oculomotor control that requires participants to inhibit a saccade to a target and instead make a voluntary saccade to the mirror opposite location. By comparison, the prosaccade task requires participants to make a visually-guided saccade to the target. These tasks have been studied extensively using behavioural oculomotor, electrophysiological and neuroimaging in both non-human primates and humans. In humans, the antisaccade task is under active investigation as a potential endophenotype or biomarker for multiple (...)
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  29. Jakob Linnet (2013). The Iowa Gambling Task and the Three Fallacies of Dopamine in Gambling Disorder. Frontiers in Psychology 4.score: 9.0
    Gambling disorder sufferers prefer immediately larger rewards despite long term losses on the Iowa Gambling Task (IGT), and these impairments are associated with dopamine dysfunctions. Dopamine is a neurotransmitter linked with temporal and structural dysfunctions in substance use disorder, which has supported the idea of impaired decision-making and dopamine dysfunctions in gambling disorder. However, evidence from substance use disorders cannot be directly transferred to gambling disorder. This article focuses on three hypotheses of dopamine dysfunctions in gambling disorder, which appear to (...)
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  30. Bernard J. Baars (2002). The Conscious Access Hypothesis: Origins and Recent Evidence. Trends in Cognitive Sciences 6 (1):47-52.score: 6.0
  31. Arthur I. Miller (2007). Unconscious Thought, Intuition, and Visual Imagery: A Critique of "Working Memory, Cerebellum, and Creativity". Creativity Research Journal 19 (1):47-48.score: 6.0
  32. Georg Northoff, Pengmin Qin & Todd E. Feinberg (2011). Brain Imaging of the Self–Conceptual, Anatomical and Methodological Issues. Consciousness and Cognition 20 (1):52–63.score: 6.0
  33. Joseph J. Fins & F. Plum (2004). Neurological Diagnosis is More Than a State of Mind: Diagnostic Clarity and Impaired Consciousness. Archives of Neurology 61 (9):1354-1355.score: 6.0
  34. Bernard J. Baars (2001). How Could Brain Imaging Not Tell Us About Consciousness? Journal Of Consciousness Studies 8 (3):24-29.score: 6.0
  35. Antti Revonsuo (2001). Discovering the Mechanisms of Consciousness: Reply to Commentaries. Journal Of Consciousness Studies 8 (3):44-50.score: 6.0
  36. Debra A. Gusnard (2005). Being a Self: Considerations From Functional Imaging. Consciousness and Cognition 14 (4):679-697.score: 6.0
  37. T. W. Kjaer, M. Nowak, K. W. Kjaer, A. R. Lou & H. C. Lou (2001). Precuneus-Prefrontal Activity During Awareness of Visual Verbal Stimuli. Consciousness and Cognition 10 (3):356-365.score: 6.0
    Awareness is a personal experience, which is only accessible to the rest of world through interpretation. We set out to identify a neural correlate of visual awareness, using brief subliminal and supraliminal verbal stimuli while measuring cerebral blood flow distribution with H215O PET. Awareness of visual verbal stimuli differentially activated medial parietal association cortex (precuneus), which is a polymodal sensory cortex, and dorsolateral prefrontal cortex, which is thought to be primarily executive. Our results suggest participation of these higher order perceptual (...)
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  38. Anthony Randal McIntosh, M. Natasha Rajah & Nancy J. Lobaugh (2003). Functional Connectivity of the Medial Temporal Lobe Relates to Learning and Awareness. Journal of Neuroscience 23 (16):6520-6528.score: 6.0
  39. Steven T. Flammia, Andrew Silberfarb & Carlton M. Caves (2005). Minimal Informationally Complete Measurements for Pure States. Foundations of Physics 35 (12):1985-2006.score: 6.0
  40. John G. Taylor (2001). Functional Brain Imaging to Search for Consciousness Needs Attention. Journal Of Consciousness Studies 8 (3):39-43.score: 6.0
  41. Cozmin Ududec, Howard Barnum & Joseph Emerson (2011). Three Slit Experiments and the Structure of Quantum Theory. Foundations of Physics 41 (3):396-405.score: 6.0
    In spite of the interference manifested in the double-slit experiment, quantum theory predicts that a measure of interference defined by Sorkin and involving various outcome probabilities from an experiment with three slits, is identically zero. We adapt Sorkin’s measure into a general operational probabilistic framework for physical theories, and then study its relationship to the structure of quantum theory. In particular, we characterize the class of probabilistic theories for which the interference measure is zero as ones in which it is (...)
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  42. Andreas A. Ioannides, Lichan Liu, Vahe Poghosyan, George A. Saridis, Albert Gjedde, Maurice Ptito & Ron Kupers (2013). MEG Reveals a Fast Pathway From Somatosensory Cortex to Occipital Areas Via Posterior Parietal Cortex in a Blind Subject. Frontiers in Human Neuroscience 7.score: 6.0
    Cross-modal activity in visual cortex of blind subjects has been reported during performance of variety of non-visual tasks. A key unanswered question is through which pathways non-visual inputs are funneled to the visual cortex. Here we used tomographic analysis of single trial magnetoencephalography (MEG) data recorded from one congenitally blind and two sighted subjects after stimulation of the left and right median nerves at three intensities: below sensory threshold, above sensory threshold and above motor threshold; the last sufficient to produce (...)
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  43. G. Northoff & F. Bermpohl (2004). Cortical Midline Structures and the Self. Trends in Cognitive Sciences 8 (3):102-107.score: 6.0
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  44. Russell A. Poldrack (2006). Can Cognitive Processes Be Inferred From Neuroimaging Data? Trends in Cognitive Sciences 10 (2):59-63.score: 6.0
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  45. Mélanie Boly, Marie-Elisabeth Faymonville, Brent A. Vogt, Pierre Maquet & Steven Laureys (2007). Hypnotic Regulation of Consciousness and the Pain Neuromatrix. In Graham A. Jamieson (ed.), Hypnosis and Conscious States: The Cognitive Neuroscience Perspective. Oxford University Press. 15-27.score: 6.0
  46. H. Damasio, D. Tranel, T. Grabowski, R. Adolphs & A. Damasio (2003). Neural Systems Behind Word and Concept Retrieval. Cognition 92 (1-2):179-229.score: 6.0
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  47. P. C. Fletcher, F. Happé, U. Frith, S. C. Baker, R. J. Dolan, R. S. Frackowiak & C. D. Frith (1995). Other Minds in the Brain: A Functional Imaging Study of "Theory of Mind" in Story Comprehension. Cognition 57 (2):109-128.score: 6.0
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  48. Gabriele Gratton & Monica Fabiani (2010). Fast Optical Imaging of Human Brain Function. Frontiers in Human Neuroscience 4.score: 6.0
  49. Geraint Rees (2001). Can Philosophy Discover Consciousness in the Brain? Commentary on Revonsuo's Can Functional Brain Imaging Discover Consciousness in the Brain?. Journal of Consciousness Studies 8 (3):34-38.score: 6.0
  50. Kieran C. Fox, Savannah Nijeboer, Elizaveta Solomonova, G. William Domhoff & Kalina Christoff (2013). Dreaming as Mind Wandering: Evidence From Functional Neuroimaging and First-Person Content Reports. Frontiers in Human Neuroscience 7.score: 6.0
    Isolated reports have long suggested a similarity in content and thought processes across mind wandering (MW) during waking, and dream mentation during sleep. This overlap has encouraged speculation that both ‘daydreaming’ and dreaming may engage similar brain mechanisms. To explore this possibility, we systematically examined published first-person experiential reports of MW and dreaming and found many similarities: in both states, content is largely audiovisual and emotional, follows loose narratives tinged with fantasy, is strongly related to current concerns, draws on long-term (...)
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