Psychology Commons^™

Investigation Of Videogame Flow: Effects Of Expertise And Challenge, Jolie G. Gascon

Doctoral Dissertations and Master's Theses

The number of participants in this expertise and videogame flow test totaled 80 from multiple target locations. Participants engaged in various levels of the videogame Super Mario Bros. Twenty experts and twenty novices experienced the easier level of World 1-2 while the other twenty experts and novices were exposed to the more difficult level World 6-1. After gameplay, participants completed a modified survey measuring flow. This survey, along with overall percentage game score, was analyzed. A significant interaction was found between game level (challenge level) and skill levels in perceived immersion, with significant main effects for expertise in perceived skill, …

Moral Development In The Military: The Efficacy Of Rotc Morality Training At The Sophomore Level, Paul A. Gillett

Doctoral Dissertations and Master's Theses

The Reserve Officers Training Corps (ROTC) is an accessions program designed to produce quality commissioned Officers for operational units, in support of strategic Department of Defense (DoD) objectives. The traditional program length of 4 years coincides with the average number of years required to obtain a baccalaureates degree in the United States, in part because a degree is required for program completion. The program goals are to develop candidates physically, mentally, and morally in order to ensure they can be entrusted with the highest levels of leadership required of a US citizen.

This study aimed at assessing the moral development …

The Effects Of Acute Psychosocial Stress On Cognitive Performance, Anne I.S. Gray

Doctoral Dissertations and Master's Theses

The purpose of this study was to examine the effects of acute psychosocial stress on cognitive performance. Psychosocial stress evolves from the perceived presence of a social evaluative threat and results in the activation of the home hypothalamic-pituitary-adrenal axis. As part of this reaction the stress hormone cortisol is secreted into the blood stream, ultimately crossing the blood-brain barrier, where it can have profound effects on various aspects of cognition. A review of the literature reveals that that attention, working memory, spatial judgment and cognitive processing efficiency are particularly susceptible to stress induced changes in performance level. A test battery …

The Effects Of Sensor Performance As Modeled By Signal Detection Theory On The Performance Of Reinforcement Learning In A Target Acquisition Task, Nate Quirion

Doctoral Dissertations and Master's Theses

Unmanned Aerial Systems (UASs) today are fulfilling more roles than ever before. There is a general push to have these systems feature more advanced autonomous capabilities in the near future. To achieve autonomous behavior requires some unique approaches to control and decision making. More advanced versions of these approaches are able to adapt their own behavior and examine their past experiences to increase their future mission performance. To achieve adaptive behavior and decision making capabilities this study used Reinforcement Learning algorithms. In this research the effects of sensor performance, as modeled through Signal Detection Theory (SDT), on the ability of …

Comparison Of Voice And Text Atc Communications In The Cockpit For Esl Pilots, Shannon Marie Cummings

Doctoral Dissertations and Master's Theses

Throughout the course of any flight, pilots and air traffic control (ATC) are in constant radio communication regarding the position and route of the aircraft. Effective pilot-ATC communication helps to increase safety by increasing the situation awareness of both the pilot and controller. In the current pilot-ATC communication system, auditory messages are sent back and forth between the pilot and controller. The nature of these auditory messages makes them highly susceptible to memory and information processing limitations. This effect is magnified when dealing with pilots who have learned English as a second language (ESL) as people have more difficulty processing …

A Naturalistic Study Of Long-Term Working Memory Capacity For Meaningful Visual And Auditory Stimuli, Joseph M. Jaworski

Doctoral Dissertations and Master's Theses

The purpose of this study was to explore long-term working memory in experts in an information-rich, dynamic domain. Of particular interest were strategies experts use to enhance long-term working memory capacity when working with verbal versus aural information. Three air traffic control instructors participated in four complex air traffic control scenarios, two radar scenarios in which information was presented visually and two non-radar scenarios in which information presentation was purely aural. Participants recalled traffic situation information at two points during and at the end of each scenario. Recall data for each scenario type were assessed in terms of evidence about …

Spatial Cognition Differences Between Men And Women In Spatial Cue Environments During Flight Simulation, Heidi Crystal Kim

Doctoral Dissertations and Master's Theses

Ground reference maneuvers are an important component of pilot training. In order to perform these maneuvers, pilots rely on cues from the environment to determine where their aircraft is in relation to objects on the ground. This process requires a high degree of spatial cognition, which refers to the cognitive processes used to orient oneself in space. Two factors that can influence spatial cognition in the context of aviation ground reference maneuvers are the availability of spatial cues and the biological sex of the pilot. Research suggests spatial cues aid in the identification of potentially dangerous objects. In the context …

Effects Of Pack Weight On Endurance Of Long-Distance Hikers, Anthony T. Thomas

Doctoral Dissertations and Master's Theses

Hikers attempting long-distance trails, like the Appalachian Trail, load their backpacks down with gear that may exceed ideal limits on pack weight. Hikers pack clothing to deal with changing weather conditions, sleeping bags, tents, tarps, cooking gear, food, water and other accessories to compensate for the lack of comfort in the remote wilderness. These heavy weights may affect hikers' ability to walk in comfort and result in physical injuries such as ankle sprains, knee pain, muscular fatigue, and soft tissue damage. Heavy pack weights can cause injuries and possibly prevent hikers from completing long distance hikes.

This study evaluated pack …

Pre-Exposure Training As A Means To Reduce Vection Induced Symptoms Of Motion Sickness, Nicholas James Stapleton

Doctoral Dissertations and Master's Theses

The focus of this study was designed to empirically examine the effect of inducing mild motion sickness as an ameliorative to a more severe motion sickness exposure. Twenty-seven participants were selected for this study based upon their susceptibility to motion sickness, that is, only people who were determined to be motion susceptible were tested. All participants were exposed to a motion sickness-inducing environment. Eighteen participants were trained to adapt to motion sickness by exposure to a milder motion sickness-inducing environment, ending either 6 hours or 24 hours prior to the more severe motion test environment.

Participants during the pre-exposure experimental …

The Effects Of Feedback Delivery Mechanisms On Employee Engagement Participation, Augusto Espinosa

Doctoral Dissertations and Master's Theses

The effects of different feedback mechanisms on safety engagement were examined in an industrial manufacturing setting with twenty employees. During a 30-day period, participants who received feedback showed a significant increase in safety engagement participation when compared to a five-month baseline period of no feedback. There was no significant difference in safety engagement participation between employees who received verbal feedback versus those who received written feedback. Furthermore, survey responses indicated that feedback improved employee attitudes toward the plant's safety program. Together, these findings suggest that feedback systems can be used to effectively improve industrial safety programs.

Effects Of Oxygen Deprivation On Pilot Performance And Cognitive Processing Skills: A Pilot Study, David Francis Shideler

Doctoral Dissertations and Master's Theses

According to Federal Aviation Administration (FAA) regulations, pilots flying above 14,000 ft. are required to use supplemental oxygen. The purpose of this study was to examine how oxygen deprivation below 14,000 ft. affects pilot performance using the Frasca Mentor Advanced Aviation Training Device (AATD), and cognitive processing skills using the Automated Neuropsychological Assessment Metrics (ANAM(TM)) cognitive test. The study was conducted in a Normobaric High Altitude Laboratory at simulated altitudes of 5,000 ft. and 14,000 ft. In this pilot study, only five participants were tested; non-significant results of the analysis were anticipated; however, as oxygen levels decreased and time of …

Do "Suicide Bombers" Really Commit Suicide?, Ibpp Editor

International Bulletin of Political Psychology

By Israel Oron (Ostre), Ph.D., Psychologist, National Program for Suicide Prevention, Ministry of Health, Israel, and The Department for Psychology, Health and Ethics/ University of Haifa, Israel.

[Dr. Oron (Ostre) was formerly Psychologist, Behavior Section/The Department of Criminal Investigations & Intelligence, Israel Police HQ].

This article applies a psychological approach to explore and to explain the behavior of Palestinian terrorists who blow themselves up in the light of their own words. It is shown that terrorists have no suicidal intent; hence, their behavior is not an act of suicide. Psychological analysis point to a behavioral reaction to stress situations that …

Exploration Of Sensemaking In The Education Of Novices To The Complex Cognitive Work Domain Of Air Traffic Control, Travis J. Wiltshire

Doctoral Dissertations and Master's Theses

Many current complex business and industry jobs consist primarily of cognitive work; however, current approaches to training may be inadequate for this type of work (Hoffman, Feltovich, Fiore, Klein, & Ziebell, 2009). To try and improve training and education for cognitive work, Klein and Baxter (2006) have proposed cognitive transformation theory (CTT), a learning theory that claims that sensemaking activities are essential for acquiring expertise that is adaptive and thus well suited for cognitive work domains. In the present research, cognitive task analysis methods were used to identify and assess sensemaking support in the instruction and learning of complex concepts …

The Effect Of Control And Display Lag On Uas Internal Pilot Manual Landing Performance, Marshall Everett Lloyd

Doctoral Dissertations and Master's Theses

An important characteristic of UASs is lag because it can become a considerable challenge to successful human-in-the-loop control. As such, UASs are designed and configured to minimize system lag, though this can increase acquisition and operation costs considerably. In an effort to cut costs, an organization may choose to accept greater risk and deploy a UAS with high system lag. Before this risk can be responsibly accepted, it must be quantified.

While many studies have examined system lag, very few have been able to quantify the risk that various levels of lag pose to an internally piloted, manually landed UAS. …

The Effects Of Familiarity And Persuasion On Risk Assessment, Casey L. Smith

Doctoral Dissertations and Master's Theses

Cognitive biases influence decisions and the analyses of risk. They are often derived from two separate processes: bias based on familiarity (familiarity bias) and bias as the result of influences from outside sources (persuasion bias). Research suggests that familiarity-based bias may lead to acceptance of an activity's drawbacks and a leniency of its risks.

In addition, research has tried to measure and analyze different types of biases individually, but few have compared the interactions of more than one bias at once. Because different biases may derive from different mental phenomena it is important to tease out the distinctions, and observe …

The Effects Of Expertise And Information Location On Change Blindness Detection Within An Aviation Domain, Dinorah Zárate

Doctoral Dissertations and Master's Theses

Change blindness is a phenomenon where the viewer fails to detect change in an object or scene during a visual disturbance. During a flight, a pilot samples multiple displays for information about the task at hand. It is imperative that the changes in the displays are being correctly viewed by pilots to ensure a safe flight. However, it is unknown how much change blindness affects pilots or if pilot expertise plays a role in change detection.

A change blindness experiment was performed with twenty four participants divided into two groups based on expertise. Expert pilots were defined as instructor pilots …

Even Moderate Visual Impairments Degrade Drivers' Ability To See Pedestrians At Night, Joanne M. Wood, Richard A. Tyrell, Alex Chaparro, Ralph P. Marszalek, Trent P. Carberry, Byoung Sun Chu

Publications

PURPOSE. To determine the effect of moderate levels of refractive blur and simulated cataracts on nighttime pedestrian conspicuity in the presence and absence of headlamp glare.

METHODS. The ability to recognize pedestrians at night was measured in 28 young adults (M ¼ 27.6 years) under three visual conditions: normal vision, refractive blur, and simulated cataracts; mean acuity was 20/40 or better in all conditions. Pedestrian recognition distances were recorded while participants drove an instrumented vehicle along a closed road course at night. Pedestrians wore one of three clothing conditions and oncoming headlamps were present for 16 participants and absent for …

Determining Kanban Size Using Mathematical Programming And Discrete Event Simulation For A Manufacturing System With Large Production Variability, Abigail Michele Gaston

Doctoral Dissertations and Master's Theses

In order to become more competitive and aggressive in the marketplace it is imperative for manufacturers to reduce cycle time, limit work-in-process, and improve productivity, responsiveness, capacities, and quality. One manner in which supply chains can be improved is via the use of kanbans in a pull production system. Kanbans refer to a card or signal for productions scheduling within just-in-time (JIT) production systems to signal where and what to produce, when to produce it, and how much. A Kanban based JIT production system has been shown to be beneficial to supply chains for they reduce work-in-process, provide real time …

Analysis Of The Effects Of Hypoxia On Cognitive Processing Ability, Meaghan Catherine Hart

Doctoral Dissertations and Master's Theses

This one way repeated measures analysis with five levels of oxygen saturation used the Embry Riddle Aeronautical University Normobaric High Altitude Lab (HAL) to determine the cognitive reduction in spatial orientation and mental math ability experienced by individuals at progressively increasing levels of hypoxia, measured in blood oxygen saturation, when exposed to the FAA legal altitude of 15,000 feet. Each of the eleven participants in the study ( N = 11) were exposed to both a normoxic normobaric (nominal PO2 = 21%) environment in a conference room and hypoxic normobaric environment (PO2 = 12.21%) in the Embry Riddle Aeronautical University …

Naturalistic Study Examining The Data/Frame Model Of Sensemaking By Assessing Experts In Complex, Time-Pressured Aviation Domains, Katherine P. Kaste

Doctoral Dissertations and Master's Theses

Research on expert chess players, radiologists and landmine detection personnel suggests a use of cognitive frameworks, alternatively referred to as schemas, templates, scripts, frames and models, to effectively perceive, interpret, understand, recall, and anticipate information. These experts may use cognitive frameworks to capture past experience in ways that support rapid pattern recognition, adaptive responses and proactivity. The proposed research approach assumes that experienced pilots will similarly rely on cognitive frameworks to handle information and make sense of complex, fast-moving situations experienced in their information-dense environments. Predictions from Klein et al.'s (2006) Data/Frame Model of Sensemaking were used to evaluate event-based …

Quality And Quantity Of Sleep Study And Its Relationship To The Performance Of Lpga Tour Players, Maria Elena Lopez

Doctoral Dissertations and Master's Theses

The relationship between sleep efficiency and elite level athletic performance that has a definitive and individual measure of performance (like golf, track, & swimming) has never been systematically studied. The extreme and rigorous travel schedules of professional golfers prevent consistent and necessary sleep schedules. The Ladies Professional Golf Association (LPGA) permitted Embry-Riddle Aeronautical University (ERAU) to ask for volunteers at two tournaments during October of 2010 to complete subjective sleep fatigue logs. Analysis of the sleep fatigue logs revealed a relationship between sleep quality and performance (golf score). Subsequent relationships were also found between subjective fatigue and sleep quality, and …

Assessing Color Discrimination, Joshua R. Maxwell

Doctoral Dissertations and Master's Theses

The purpose of this study was to evaluate human color vision discriminability within individuals that have color normal vision and those that have color deficient vision. Combinations of 15 colors were used from a list of colors recommended for computer displays in Air Traffic Control settings, a population with some mildly color vision deficient individuals. After a match to sample test was designed to assess the limits of human color vision discrimination based on color saturation and hue, standard color diagnostic tests were used to categorize college students as having normal or deficient color vision. The results argue that color …

The Effects Of Different Optokinetic Drum Rotation Speeds On Motion Sickness Symptoms, Cognitive Performance And Sleep Amount, Wilfredo Rodríguez-Jiménez

Doctoral Dissertations and Master's Theses

Symptoms of motion sickness can be disruptive to human performance. If vection-induced motion sickness symptoms, sleep amount disruptions, and worsening of cognitive performance can be measured and characterized, there are practical implications for equipment design, especially for virtual reality devices and simulators. The researcher conducted three studies. The first study examined the effects of different rotation speeds (0 RPM, 5 RPM, and 10 RPM) of the optokinetic drum on motion sickness symptoms. Motion sickness symptoms were measured using the Simulator Sickness Questionnaire (SSQ). Before exposure to the optokinetic drum, participants were not significantly different from one another in terms of …

An Evaluation Of Rta Symbols To Improve Pilot Situation Awareness, Erik D. Schmidt

Doctoral Dissertations and Master's Theses

The purpose of this study was to evaluate different types of temporal guidance symbol sets in 4]Dimensional displays. Different displays were evaluated using situation awareness (SA) as a dependent measure. Participants were a mixture of non]pilots and pilots with an average flight time of 155 hours. All 24 participants were randomly assigned to their experimental condition. Objective SA data was collected during the experiment. After the experiment, each participant completed a subjective questionnaire. No significance was found between the pilots and non-pilots. No significance was found between types of displays. And, no interaction was found between groups.

Useful Field Of View Predicts Driving In The Presence Of Distracters, Joanne M. Wood, Alex Chaparro, Philippe Lacherez, Louise Hickson

Publications

Purpose. The Useful Field of View (UFOV®) test has been shown to be highly effective in predicting crash risk among older adults. An important question which we examined in this study is whether this association is due to the ability of the UFOV to predict difficulties in attention-demanding driving situations that involve either visual or auditory distracters.

Methods. Participants included 92 community-living adults (mean age 73.6 +- 5.4 years; range 65– 88 years) who completed all three subtests of the UFOV involving assessment of visual processing speed (subtest 1), divided attention (subtest 2), and selective attention (subtest 3); driving safety …

Latent Print Examination And Human Factors: Improving The Practice Through A Systems Approach: The Report Of The Expert Working Group On Human Factors In Latent Print Analysis, David H. Kaye, Thomas Busey, Melissa R. Gische, Gerry Laporte, Scott A. Shappell, Et Al.

Publications

Fingerprints have provided a valuable method of personal identification in forensic science and criminal investigations for more than 100 years. Fingerprints left at crime scenes generally are latent prints—unintentional reproductions of the arrangement of ridges on the skin made by the transfer of materials (such as amino acids, proteins, polypeptides, and salts) to a surface. Palms and the soles of feet also have friction ridge skin that can leave latent prints. The examination of a latent print consists of a series of steps involving a comparison of the latent print to a known (or exemplar) print. Courts have accepted latent …

Effects Of Visual Interaction Methods On Simulated Unmanned Aircraft Operator Situational Awareness, Brent A. Terwilliger

Publications

The limited field of view of static egocentric visual displays employed in unmanned aircraft controls introduces the soda straw effect on operators, which significantly affects their ability to capture and maintain situational awareness by not depicting peripheral visual data. The problem with insufficient operator situational awareness is the resulting increased potential for error and oversight during operation of unmanned aircraft, leading to accidents and mishaps costing United States taxpayers between $4 million to $54 million per year. The purpose of this quantitative experimental completely randomized design study was to examine and compare use of dynamic eyepoint to static visual interaction …

Benefits And Challenges Of Multidisciplinary Project Teams: "Lessons Learned" For Researchers And Practitioners, Haydee M. Cuevas, Cheryl A. Bolstad, Robert Oberbreckling, Noelle Lavoie, Diane Kuhl Mitchell, James Fielder, Peter W. Foltz

Publications

Adopting a multidisciplinary research approach would enable test and evaluation professionals to more effective!y investigate the complex human performance problems faced in today's technologically advanced operational domains. To illustrate the utility of this approach, we present "lessons learned" based on our experiences as a multi-agency, multidisciplinary team collaborating on an Army research project involving a dynamic military command and control simulation. Our goal with these lessons learned is to provide guidance to researchers and practitioners alike concerning the benefits and challenges of such collaboration. Our project team's diverse members, drawn from both industry and government organizations, offer their multiple p …

The Effects Of Observers’ Expectations And The Probability Of A Change Occurring On Change Detection Performance, Robert A. Brown

Doctoral Dissertations and Master's Theses

The change probability effect is a term coined by Beck et al. (2004) and it suggests that changes that are expected or "probable" are detected more easily than changes that are unexpected or "improbable". This research study investigates the change probability effect and the differences between observers who are looking for changes and those who are unaware that changes may exist. The results suggest that observers who are not expecting a change to occur are more likely to detect an improbable change than a probable change. The findings from this study have real world applications and also have implications for …

The Effects Of Caffeine And Expectancy On Short Term Memory, Sara J. O'Brien

Doctoral Dissertations and Master's Theses

Although caffeine is the most widely used drug in the world, research on the effects of caffeine on mental performance tasks (especially short term memory tasks) is inconclusive. One possible explanation for this limited understanding is the lack of studies accounting for participant expectancy surrounding caffeine. This study examined the effects of caffeine dosage (0mg, 200mg, and 400mg) and expectancy related to past caffeine use (positive, negative) on short term memory span task. A two-way Analysis of Variance showed that the two independent variables (caffeine dose and expectancy), did not significantly influence the short term memory span score. However, the …