Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 31 for “"Visual space"”.
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MyView: Customizable Automatic Visual Space Management for Multi-Stream Environment
We have built a lecture recording and broadcasting system on top of the ConferenceXP platform to evaluate our solution. Results from both simulation experiments and user study have confirmed the functional correctness and usability of the MyView framework.
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Principles underlying the development and organization of feature maps in the visual cortex
… organization established mechanistically? The visual cortex serves as a model area to address these questions, but whether general principles can explain the layouts of cortical maps, such as those of visual space and of specific response features, remains unresolved. We find that in primary …
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Eye-opening dependent elaboration and refinement of the cortical projection to the superficial superior colliculus in rats
… layers of the SC (sSC) receive direct visual input from retinal ganglion cells (RGC) as well as input from pyramidal cells in layer V of the ipsilateral visual cortex (VC). The retinal input is refined well before eye opening (EO) and RGC axons arborize topographically to form an …
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Perceptual Learning, Long-Range Horizontal Connections And Top-Down Influences In Primary Visual Cortex
<p>The earliest cortical stage of visual processing, the primary visual cortex, has long been seen as a static preprocessor that finds local edges and their orientation like a linear filter bank, and passes this information on to downstream visual areas. This view has been challenged in recent …
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Searching for knowledge. The neurophysiology behind the exploration of hippocampal cognitive maps.
… show that attention underlies exploration of visual space giving rise to the grid-like response, a typical signature of spatial navigation. These findings deepen our understanding of the role of human’s hippocampal formation in cognition and open new avenues for research, particularly …
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A technique for the measurement and possible rehabilitation of Visual Neglect using the Leap Sensor
Visual Neglect is a common neuropsychological deficit associated with a person having a Stroke [1]. This deficit is manifested by a Stroke patient’s inability to notice things usually in the left hand side of their visual space. This has a serious impact on their daily lives as they fail to notice …
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When the Brain Plays a Game: Neural Responses to Visual Dynamics during Naturalistic Visual Tasks
… day-to-day tasks involve processing of complex visual information in a continuous stream. While much of our knowledge on visual processing has been established from reductionist approaches in lab-controlled settings, very little is known about the processing of complex dynamic stimuli …
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Cyberspace as a memory container
Space is a container for memory. This metaphor is built upon the observation that the human mind can easily acquire spatial information without much deliberation. Moreover, non-spatial information can be better retrieved when associated with a spatial memory. The mnemonic function of space has been …
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Eye-opening and control of visual synapse development in the mouse superior colliculus
… mammalian superior colliculus (SC) coordinates visual, somatosensory, and auditory stimuli to guide animal behavior. The superficial layers (sSC) receive visual information via two major afferent projections: 1) A direct retinal projection and 2) an indirect projection from Layer V visual …
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Blurring spatial limits : photography and spatial definition
The Image based space of vision has substituted functional space as a stage of contemporary life, the relationships between physical spaces are constantly being redefined by the change from function to image, forcing us to live in a state of spatial indeterminacy, in a Blurred space that lacks a …
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Learning spoken language through vision
… The context and constraint provided by the visual information enables our models to efficiently learn linguistic units, such as words, along with their visual semantics. For example, our models are able to recognize instances of the spoken word "water" within spoken captions and associate …
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Organization of the Clare-Bishop Area of Cat Visual Cortex (Extrastriate)
The primary visual pathway consists of projections from the retina to the lateral geniculate nucleus (LGN) and from the LGN to the visual cortex. The cat LGN has 3 major subdivisions containing independent representations of visual space: A layers, C layers, and the medial interlaminar nucleus …
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Visual Processing Across Space and Time in Children with Autism Spectrum Disorder
… by better detection and identification of visual targets. This enhanced ability to discriminate features has been replicated across spatial and temporal displays. Research also suggests that visual perceptual abilities are correlated with the severity of core autism symptoms in this …
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VISUAL ANALYTICS FOR OPEN-ENDED TASKS IN TEXT MINING
… topic distribution. While we can spot clusters visually, it is challenging to characterize them. My research investigates an interactive method to identify clusters by assigning attributes and examining the resulting distributions. ParallelSpaces examines the understanding of topic modeling …
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Models for the study of neuronal activity during cognitive tasks
… on multisensory integration of tactile and visual stimuli in the representation of the near space around the body (peripersonal space). This work describes an original neural network to simulate representation of the peripersonal space around the hands, in basal conditions and after training …
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Lifespan changes in covert attention alignment
… that attentional resources can be aligned in visual space. They can be "pulled" automatically by stimulus cues, or "pushed" in a more strategic manner by the observer in response to information cues. The present study was designed to determine if the ability to align attention in these two …
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Processing of relevant information in the primate prefrontal cortex
… was assessed during the performance of three visual memory tasks. In the first task, the sensory and mnemonic receptive fields were studied, by requiring monkeys to simultaneously remember both the identity and the location of an object presented at different locations. We report that many …
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Wittgenstein and the Grammar of Physics: A Study of Ludwig Wittgenstein's 1929-1930 Manuscripts and the Roots of His Later Philosophy
… which experiential propositions about various "spaces" (e.g., "visual space") would form systems. The system described by a phenomenological language would be independent of the one described by ordinary "physicalistic" language; the physical "world" was known only by inference from the …
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Expansive Hybridity: Multilingual and Visual Poetics in Contemporary Experimental Asian American and Pacific Islander Poetry
… to not only include verbal expression but also visual forms of representation (such as photographs, illustrations, and digital renderings of images). How do these poets grapple with both text and image as a means of communicating across and confronting different types of boundaries (such as …
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