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.
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Showing 1 to 20 of 84 for “"spatial orientation"”.
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Visual-vestibular interaction in spatial orientation
Contains fulltext : 19092_visuinins.pdf (Publisher’s version ) (Open Access)
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A training methodology for spatial orientation in spacecraft
… of their craft so that their performance in orientation and spatial memory tasks is improved. An "adjacency training" method was developed that taught connections between landmarks in two joined modules with inconsistent visual verticals by emphasizing functional relationships among adjacent …
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A virtual environment system for spatial orientation research
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1995.
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Human spatial orientation perceptions during simulated lunar landing
… were used as inputs to a mathematical model for orientation system function, to predict human perception of orientation and identify disorientating illusions. Simulations were conducted using the vestibular-only portion of the model as well as incorporating the activation of visual cues. Dust …
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Multisensory integration in spatial orientation and self-motion perception
Contains fulltext : 143186.pdf (Publisher’s version ) (Open Access)
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Multisensory models for human spatial orientation including threshold effects
… Like many other dynamic models for human spatial orientation, Observer does not incorporate perception thresholds, which limits its use to relatively large stimuli and hence cannot be used for investigation of certain accidents and flight simulator design, which involve sub-threshold …
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A multisensory observer model for human spatial orientation perception
Quantitative "observer" models for spatial orientation and eye movements have been developed based on 1-G data from humans and animals (e.g. Oman 1982, 1991, Merfeld, et al 1993, 2002; Haslwanter 2000, Vingerhoets 2006). These models assume that the CNS estimates "down", head angular velocity and …
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Suboptimal estimator for the spatial orientation of a pilot
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1990.
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Effect of two-module-docked spacecraft configurations on spatial orientation
… in one module to mentally visualize the relative orientation of the other module, and spatial relationships of surfaces in it. Spacecraft and space station modules are typically connected differently in space from the way they would be in training simulators on Earth. The local visual vertical is …
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A novel training program for improving spatial orientation: A pilot study
… surrounding is a critical skill for efficient spatial navigation and orientation in humans. Such a mental representation, more commonly known as a “cognitive map”, provides detailed information about landmarks and their relationships with each other in space. The inability to effectively form …
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Spatial orientation in the squirrel monkey : an experimental and theoretical investigation
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1990.
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Modeling human spatial orientation perception in a centrifuge using estimation theory
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1993.
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A Mechanism for Spatial Orientation Based on Sensory Adaptation in Caenorhabditis Elegans
<p>During chemotaxis, animals compute spatial information about odor gradients to make navigational choices for finding or avoiding an odor source. The challenge to the neural circuitry is to interpret and respond to odor concentrations that change over time as animals traverse a gradient. In this …
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Effect of Age on Visual Dependence for Spatial Orientation and Postural Control
Effective spatial orientation and postural control requires the integration of proprioceptive, vestibular and visual inputs. Increased visual dependence has been reported in older adults but the underlying mechanisms remain unknown. The aims of this research were to investigate the methodological …
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Internal Representations and the Importance of Active Control in Dynamic Spatial Orientation
… of active control in determining dynamic spatial orientation. Subjects were presented with displays simulating flight through a 3-D world. Active observers continuously controlled self-motion whereas passive observers viewed the displays controlled by active observers. During each trial, …
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The effect of dust blowback on spatial orientation estimation during lunar landing
… down safely. We aim to study human perception of orientation under different visual cues using a helicopter simulator. We conducted a simulator-only lunar landing experiment with seventeen helicopter pilot subjects at USAARL utilizing the 6 degree-of-freedom moving-base UH-60 helicopter simulator. …
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Influence of spatial orientation and spatial visualization abilities on space teleoperation performance
… correlate with two known subcomponents of spatial intelligence: perspective-taking (PT) and spatial visualization (SV). A preliminary study [1] supports this hypothesis. We believe astronauts use PT (the ability to imagine an object from a different viewpoint) to integrate camera …
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Perspectives from above: The role of altitude in bumblebee spatial orientation and navigation
… of flying insects such as bumblebees during orientation and navigation to fulfil their daily task of learning, foraging, and homing. The first parts focus on how flying insects use their first out- bound flights to learn the surroundings of their nest. A comprehensive review of the current …
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Assessing Spatial Orientation Skills in Athletes After Sustaining a Concussion: A Pilot Study
… map formation and use a modified version of the Spatial Configuration Task (m-SCT), a computerized tool that has been shown to quantitatively measure an individual’s ability to form and use cognitive maps (Burles, 2014), was administered to a group of 18 adolescent hockey participants suffering …
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