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39 results
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ItemAn investigation of human capability to predict the future location of objects in motion(Georgia Institute of Technology, 2009-04-06) Kelling, Nicholas J.Hitting a Major League fastball pitch may be the most difficult task in the sports realm. Anecdotal evidence suggests that certain individuals are able to perform this task reasonably well, perhaps because of superior sensitivity to changes in motion. However, the substantial lack of research investigating detection and assessment of changes in motion renders this conclusion problematic (Kelling, 2008). Two experiments, using expert and novice participants, assessed sensitivity to changes in motion. Experts for these studies were defined as current members of the Georgia Institute of Technology Yellow Jacket softball team. Experimental procedures included assessments of capabilities in batting and motion tracking tasks. Experiment One presented participants with recorded softball pitches thrown from a pitching machine. Experiment Two required participants to predict multiple landing locations for incomplete motion paths resulting from a single main target exploding into additional shrapnel pieces. Results suggest minimal expertise effects in the softball task with high performance by all participants, while distinct expertise effects exist in the shrapnel task. The motion tracking task resulted in fewer errors by experts, while all participants demonstrated a significantly large drop in performance with increasing number of shrapnel pieces. Findings from this work not only have application to the sport of softball, but are critical for identifying the people's capability to detect and assess changes in motion.
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ItemThe influence of visual perception on vehicle rates of closure(Georgia Institute of Technology, 2006-07-11) Kelling, Nicholas J.Given the high prevalence of automobile collisions in the United States, the need for collision prevention research is evident. To understand the complete cause of these incidents, it is critical to examine the drivers perception of these situations. This study involved simulations of multiple driving situations variant on luminance, rate of closure, and vehicle motions. Findings suggest changes in brake onset times of younger drivers based on roles of a lead vehicle. Multiple perceptually different rear end collisions caused participants to alter their brake onset times. The brake onset times were used to analyze braking models, including constant distance and constant tau. Additional analysis included correlations of the effects Useful Field of View and Test Anxiety on brake onset times. Effects identified not only aid in the general understanding of driving behavior, but also facilitate the application of driver assistive systems, which are currently being integrated into production vehicles.
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ItemComparing attention theories utilizing static and dynamic function allocation methods operationalized with an expert system(Georgia Institute of Technology, 2003-12-01) Campbell, Regan H.
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ItemHuman performance during automation : the interaction between automation, system information, and information display in a simulated flying task(Georgia Institute of Technology, 2000-05) Rudolph, Frederick M.
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ItemSeparation of cognitive resources within a dual task scenario(Georgia Institute of Technology, 1999-08) Millians, Jeffrey T.
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ItemSupporting human performance in dynamic process control : an information approach to training and decision aiding(Georgia Institute of Technology, 1999-05) Crosland, Marcia Brasher
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ItemReserve resources model : increasing problem-solving capacity through controlled processing(Georgia Institute of Technology, 1998-12) New, Michael D.
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ItemTransfer of training in a shoot-don't-shoot scenario simulation(Georgia Institute of Technology, 1998-08) Stephenson, Debra Phyllis
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ItemThe effects of sound on the formation of a mental model(Georgia Institute of Technology, 1998-08) Baxter, Kathy K.
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ItemThe effect of task load on the orienting of visual attention by auditory cues(Georgia Institute of Technology, 1998-05) Cobb, John Spencer