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11	Emergent Features and Perceptual Objects: A Reexamination of Fundamental Principles in Display Design Holt, Jerred Charles 16 December 2013 (has links) No description available. Cognitive Psychology Psychology
12	A comparison of the rate and accuracy of symbol location on visual displays using colour-coded alphabetic and categorisation strategies in Grade 1 to 3 children Herold, M.P. (Marina Patricia) 02 July 2012 (has links) THIS THESIS IS IN THE EXAMINATION PROCESS The ability to locate symbols on a visual display forms an integral part of the effective use of AAC systems. Characteristics of display design and perceptual features of symbols have been shown to influence rate and accuracy of symbol location (Thistle&Wilkinson, 2009; Wilkinson, Carlin,&Jagaroo, 2006). The current study endeavoured to compare the use of two colour-coded organisational strategies (alphabetical order and subcategorisation) for their effectiveness in symbol location and to investigate if some bottom-up features influenced the performance of the participants in these tasks. 114 learners in Grade 1 to 3 in a mainstream school were randomly divided into two groups. Both of the groups were exposed to two visual search tests in alternating order. The tests involved searching for 36 visual targets amongst 81 coloured Picture Communication Symbols on a computer screen in one of two colour-coded organizational methods, namely alphabetical order or subcategorisation. The data from the research task was collected through computer logging of all mouse selections. Findings showed that locating symbols on a computer screen with a subcategorisation strategy was significantly faster and more accurate than with an alphabetical strategy for the Grade 1 to 3 participants. The differences between the rates and accuracy of target symbol location using the two strategies decreased significantly as grade increased. It was also found that although the tests in this study placed heavy top-down processing demands on the participants, there was still evidence of bottom-up factors influencing their performance. Implications for display design in AAC clinical practice were discussed. / Thesis (PhD)--University of Pretoria, 2012. / Centre for Augmentative and Alternative Communication (CAAC) / Unrestricted Ak-vertoonontwerp Onder-na-bo prosessering Bo-na-onder prosessering Subkategorisering Lokalisering Alfabetiese orde Akkuraatheid Spoed Visuele soek Rate Visual search Accuracy Location Alphabetical order Subcategorisation Top-down processing Bottom-up processing Aac display design UCTD
13	Investigating the Relationship between Binocular Disparity, Viewer Discomfort, and Depth Task Performance on Stereoscopic 3D Displays McIntire, John Paul 04 June 2014 (has links) No description available. Psychology Quantitative Psychology Robotics Robots Scientific Imaging Technology Behavioral Sciences Cognitive Psychology Engineering Experimental Psychology Experiments Medical Imaging Ophthalmology Optics stereoscopy binocular vision phoria vergence fusion optometry 3D depth perception spatial vision display design virtual camera teleoperation microstereopsis orthostereopsis virtual environment simulator sickness viewer discomfort

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