Browsing Brain and Cognitive Sciences - Ph.D. / Sc.D. by Title
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Browsing Brain and Cognitive Sciences - Ph.D. / Sc.D. by Title
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(Massachusetts Institute of Technology, 2011)Astrocytes play an important role in regulating neuronal activity and local brain states, in part by serving as intermediaries between neurons and vasculature. We postulate that neurons and astrocytes are sensitive to ...
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(Massachusetts Institute of Technology, 2009)Over the past two decades several hierarchical learning models have been developed and applied to a diverse range of practical tasks with much success. Little is known, however, as to why such models work as well as they ...
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(Massachusetts Institute of Technology, 2012)In the following thesis, I describe the investigation of two problems related to the organization and structural analysis of visual information: perceptual grouping and silhouette analysis and representation. For the problem ...
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(Massachusetts Institute of Technology, 1994)
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(Massachusetts Institute of Technology, 2004)How does the visual system achieve stable estimates of surface properties - such as reflectance and 3D shape - across changes in the illumination? Under arbitrary patterns of illumination this problem is ill-posed. However, ...
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(Massachusetts Institute of Technology, 2010)A central feature of visual pathway development is its organization into retinotopic maps. The developmental process by which these maps form involves a transition from early patterning cues to arrays of axonal guidance ...
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(Massachusetts Institute of Technology, 2007)This thesis contains three sets of studies designed to explore the identification and function of prosodic features in English. The first set of studies explores the identification of prosodic features using prosodic ...
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(Massachusetts Institute of Technology, 2004)(cont.) manipulation of intronic elements that enables fish genes to be spliced properly in mammalian cells; (iii) A computational analysis using EST data, genome sequence data, and microarray expression data of tissue- ...
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(Massachusetts Institute of Technology, 2012)Developmental dyslexia is a neurological condition that specifically impairs the development of expert reading ability. Phonological processing deficits -- impaired representation of, or access to, the abstract units of ...
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(Massachusetts Institute of Technology, 1999)
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(Massachusetts Institute of Technology, 1993)
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(Massachusetts Institute of Technology, 2003)The large majority of inputs to primary visual cortex (V1) neurons arise from the dense local projections of neighboring neurons. Although several proposals have been made, it is not known what role these connections play ...
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(Massachusetts Institute of Technology, 1991)
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(Massachusetts Institute of Technology, 1994)
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(Massachusetts Institute of Technology, 1992)
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(Massachusetts Institute of Technology, 2002)
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(Massachusetts Institute of Technology, 2004)Over the last two decades numerous examples have demonstrated the remarkable plasticity of the developing brain. This plasticity occurs from the level of a single synapse to the repatterning of sensory input. One paradigm ...
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(Massachusetts Institute of Technology, 2003)The cognitive and neural processes underlying memory formation may differ depending on the vividness, or detail, of information encoded. In Chapter 1, a divided attention paradigm was used to examine memory formation when ...
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(Massachusetts Institute of Technology, 1996)
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(Massachusetts Institute of Technology, 2009)Alterations in sensory experience can persistently modify the responses of cortical neurons. Ocular dominance (OD) plasticity, a process in which alternation of visual input induces a shift in cortical responsiveness, is ...
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