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Articles 1 - 29 of 29
Full-Text Articles in Social and Behavioral Sciences
Neural Dynamics Of Categorical Representations Used For Visual Search, Ashley Phelps
Neural Dynamics Of Categorical Representations Used For Visual Search, Ashley Phelps
Electronic Theses and Dissertations, 2020-
Decades of visual attention research have predominantly used pictorial search paradigms that cue participants with the exact perceptual details of the target. However, in everyday life, people often search for categories rather than specific items (i.e., any pen rather than a specific pen). To study visual attention in a more realistic context, researchers can use categorical search paradigms that cue participants with text indicating the target category. In these instances, one must rely on long-term memory to retrieve categorical features of the target. Both experiments in this study were a reanalysis of experiments previously designed and collected by Schmidt and …
Learning Disabilities And The Impact Of Accommodation Programs In Post-Secondary Education, Jacqueline Persaud
Learning Disabilities And The Impact Of Accommodation Programs In Post-Secondary Education, Jacqueline Persaud
Honors Undergraduate Theses
As enrollment rates for students with learning disabilities steadily increase, post-secondary institutions must become more inclusive. Current literature reveals a gap in studies between post-secondary education and student views on access programs. Our endeavor focused on this community. The survey was distributed using SONA and by the Student Accessibility Services Office via Qualtrics. Our study looked at 312 participants, aged from 18 - over 30 years old and who varied in sex. More satisfaction with accommodations equated to more academic competence towards goals. However, the results showed less satisfaction with personal lives and self-acceptance. This is possibly due to participants …
Revisiting The Vigilance Taxonomy: Are Findings Consistent In A Remote Environment?, Grace E. Waldfogle
Revisiting The Vigilance Taxonomy: Are Findings Consistent In A Remote Environment?, Grace E. Waldfogle
Graduate Thesis and Dissertation 2023-2024
Previous research has highlighted key taxonomic factors that have been found to influence human performance on vigilance tasks. However, previous literature has focused on research conducted in laboratory settings but has not examined vigilance tasks in remote environments. The present dissertation addresses this gap in the literature by examining human performance on a remote vigilance task, as well as workload and stress associated with the task. Qualitative data were collected to further understand the environment and distractions that participants experienced. Across three experiments, 372 participants were asked to complete a vigilance task and answer surveys pertaining to stress, workload, and …
Predictors Of Technology Use Among Older Adults: Evidence Ranging From Non-Users To Elite Users, Xiaoqing Wan
Predictors Of Technology Use Among Older Adults: Evidence Ranging From Non-Users To Elite Users, Xiaoqing Wan
Electronic Theses and Dissertations, 2020-
Older adults tend to under-utilize digital technology and online services that can yield substantial benefits to their health and wellbeing. Addressing this problem requires determining robust and consistent predictors of older adults' technology use. Also, few studies have examined older adults who are elite users of digital technology, who may provide insights into how individuals can prepare to become competent users of future technologies as they age. To address these gaps in the technology and aging literature, this dissertation offers (1) large-scale machine learning analyses, (2) longitudinal perspectives, (3) age group comparisons across the adult life span, (4) the novel …
Automation, Take The Wheel: An Examination Of Factors Influencing Trust In Automated Driver Assist Technologies, James Ferraro
Automation, Take The Wheel: An Examination Of Factors Influencing Trust In Automated Driver Assist Technologies, James Ferraro
Electronic Theses and Dissertations, 2020-
Driving technology has progressed significantly since the introduction of anti-lock braking and cruise control decades ago. Current driver assist features can alert drivers of oncoming vehicles and even take control to keep the vehicle centered within its lane. The level of trust that people place in automation can impact how they monitor and accept these automated systems. Previous research has shown several performance outcomes associated with improper calibrations of trust in automation. However, there is still a need to examine trust in the context of advanced driving technologies. Research has yet to sufficiently investigate factors influencing trust in assistive driving …
Investigation Of Realism In Facial Characteristics And Anthropomorphic Language In The Design Of Multimedia Instruction, Ecem Olcum
Electronic Theses and Dissertations, 2020-
Emotional design elements have recently been added to the research in cognitive load and multimedia learning (Um et al., 2012). One aspect of eliciting positive emotions is to use anthropomorphic design, which has been found to increase learning performance (Um et al., 2012; Plass et al., 2014; Park et al., 2015; Schneider et al., 2018). The current research aimed to investigate three design factors in three studies: anthropomorphism in verbal and visual design, single-frame or multi-frame illustrations, and realism of the anthropomorphic visual design. The first study confirmed that the anthropomorphic verbal and visual materials were perceived as anthropomorphic by …
Gamification Of Sleep Hygiene Education For Insomnia: An Examination Of Its Efficacy And The Role Of Individual Differences, Christine Seaver
Gamification Of Sleep Hygiene Education For Insomnia: An Examination Of Its Efficacy And The Role Of Individual Differences, Christine Seaver
Electronic Theses and Dissertations, 2020-
Insomnia is a sleep disorder which is classified by one's persistent inability to fall asleep or maintain sleep. One common yet controversial approach to treating insomnia is sleep hygiene education (SHE). Sleep hygiene is defined as behaviors that promote quality sleep. SHE is typically provided through as a paper sheet containing a list of recommendations, and the findings regarding its efficacy are mixed. Providing insomnia sufferers with a SHE treatment modality that offers practice, feedback, and motivation may be effective at treating insomnia. Therefore, the first goal of the present study is to examine the efficacy of a game-based SHE …
Modeling The Relationship Between Perceptual And Stimulus Space In Category Learning, Clay Killingsworth
Modeling The Relationship Between Perceptual And Stimulus Space In Category Learning, Clay Killingsworth
Electronic Theses and Dissertations, 2020-
Learning to categorize visual stimuli is a fundamental cognitive skill underlying both everyday functioning and professional competencies in domains such as radiology and airport security screening. Categories may be very simple or highly complex, with accurate categorization dependent on multiple interacting features. General recognition theory (GRT) models uniquely allow examination of feature dimension interactions, but basic questions remain about the applicability of such models and the 2x2 categorization tasks (four-alternative forced choice) employed in studies which use them. Findings in several studies that factorially combine 2 levels of 2 stimulus dimensions indicate a common pattern of perceptual advantage for the …
Investigating The Role Of Trust And Self-Confidence In Automation, Daniela R. Miele
Investigating The Role Of Trust And Self-Confidence In Automation, Daniela R. Miele
Honors Undergraduate Theses
A proper calibration of trust in automation is imperative to achieve optimal overall performance in human-machine systems. Previous research has suggested that human operator trust could be influenced by various situational and dispositional factors, as well as operator self-confidence. It is critical to examine what traits and factors will influence how likely a person is to trust autonomous vehicles as they become more prevalent on today's roadways. The goal of this study was to further examine the relationship between individuals' level of self-confidence in their own driving abilities and their reported trust in automation when driving semi-autonomous cars. It was …
Determining And Assessing Fault Attribution In Collisions Involving Autonomous Vehicles, Alexandra Kaplan
Determining And Assessing Fault Attribution In Collisions Involving Autonomous Vehicles, Alexandra Kaplan
Electronic Theses and Dissertations, 2020-
There exists considerable research concerning how humans attribute fault to each other, both in cases of accidents and those instances of intentional harm. There also exist studies involving blame attribution towards robots, when such robots have caused harm through operational failure or lack of safety features. However, relatively little work has, to date, examined the ways in which fault is attributed to self-driving vehicles involved in collisions, despite many newspaper and popular articles which both report past incidents and warn of future risk. This dissertation examined fault attribution in collisions involving autonomous vehicles by conducting three separate experiments. The first …
Does One Bad Phish Spoil The Whole Email Load?: Exploring Phishing Susceptibility Task Factors And Potential Interventions, Dawn Sarno
Electronic Theses and Dissertations, 2020-
Phishing emails have become a prevalent cybersecurity threat for the modern email user. Research attempting to understand how users are susceptible to phishing attacks has been limited and hasn't fully explored how task factors influence accurate detection. Even further lacking are the existing training interventions that still have users falling victim to up to 90% of phishing emails following training. The present studies examined how task factors (e.g., email load, phishing prevalence) and a new form of intervention, rather than training, influence email performance. In four experiments, participants classified emails as either legitimate or not legitimate and reported on a …
The Effects Of Social Conformity In Human-Robot Interaction, William Volante
The Effects Of Social Conformity In Human-Robot Interaction, William Volante
Electronic Theses and Dissertations, 2020-
While previous work has investigated aspects of the robot, the human, and the environment as influential factors in the human-robot relationship, little work has examined the role of social conformity in this relationship. As social conformity has been shown to affect human-human choice, relationships, and trust, there are a-priori reasons to believe that it will play an influential role in human-robot interaction (HRI) scenarios as well. Early research into the influence of social conformity in human-robot interaction (HRI) did not find the effect to be present with robots, however more recent work has adapted the methodological paradigm to find more …
Comparative Examination Of The Empatica E4 To Record Heart Rate Variability Metrics, Andres Rosero
Comparative Examination Of The Empatica E4 To Record Heart Rate Variability Metrics, Andres Rosero
Honors Undergraduate Theses
The increased accessibility of cyber technology has resulted in advancements in international communications and information sharing never seen in human history. With this new age of digital software comes the proliferation of illegal online activity and cyber terrorism. Repercussions of cyber-attacks have ranged from identity theft to leaks of classified state secrets. To combat this threat, the Department of Defense (DoD) established the Cyber Mission Force (CMF) to head operations in the interests of protecting against cyber-attacks. One of the CMF’s initial projects involves the creation of a Performance Assessment Suite (PAS), a training program designed to improve the training …
Neurophysiological Correlates Of Trust In Robots, Theresa Kessler
Neurophysiological Correlates Of Trust In Robots, Theresa Kessler
Electronic Theses and Dissertations, 2020-
This work is designed to address the questions as to what drives and collapses trust between a human and a robot. Such information is needed to properly design automated decision aids. Human-robot trust (HRT) has traditionally been measured by questionnaires, which can be subject to lack of participant understanding, disengagement, and dishonesty. Therefore, implicit measures of trust are needed to measure HRT. The goal here is to identify neuro-physiological underpinnings (implicit measures) for HRT to assist designers in the development of automated robotic aids. More specifically, experiment one, looked to determine the effects of witnessing robot error on skin conductance …
Comparing Human And Machine Learning Classification Of Human Factors In Incident Reports From Aviation, Claas Tido Boesser
Comparing Human And Machine Learning Classification Of Human Factors In Incident Reports From Aviation, Claas Tido Boesser
Electronic Theses and Dissertations, 2020-
Incident reporting systems are an integral part of any organization seeking to increase the safety of their operation by gathering data on past events, which can then be used to identify ways of mitigating similar events in the future. In order to analyze trends and common issues with regards to the human element in the system, reports are often classified according to a human factors taxonomy. Lately, machine learning algorithms have become popular tools for automated classification of text; however, performance of such algorithms varies and is dependent on several factors. In supervised machine learning tasks such as text classification, …
Threatening Instructions During A Hurricane Influence Risk Perceptions: The Case Of Fear Appeals And Changing Hurricane Projections, Daphne Whitmer
Threatening Instructions During A Hurricane Influence Risk Perceptions: The Case Of Fear Appeals And Changing Hurricane Projections, Daphne Whitmer
Electronic Theses and Dissertations
The goal of this research was to examine the effectiveness of persuasive language in the protective action recommendation of an emergency warning, which instructs people how to prepare and stay safe. Study 1 was a pilot study, which suggested that participants were able to make distinctions between hurricane categories. In study 2, the presence of fear language and second-person personal pronouns (i.e., "you") in a recommendation was manipulated. Overall, fear language was more influential than a pronoun on risk perceptions. To understand how context influences risk perceptions, participants in study 3 made decisions after each piece of information received. The …
Subjective Measures Of Implicit Categorization Learning, Audrey Zlatkin
Subjective Measures Of Implicit Categorization Learning, Audrey Zlatkin
Electronic Theses and Dissertations
The neuropsychological theory known as COVIS (COmpetition between Verbal and Implicit Systems) postulates that distinct brain systems compete during category learning. The explicit system involves conscious hypothesis testing about verbalizable rules, while the implicit system relies on procedural learning of rules that are difficult to verbalize. Specifically from a behavioral approach, COVIS has been supported through demonstrating empirical dissociations between explicit and implicit learning tasks. The current studies were designed to gain deeper understanding of implicit category learning through the implementation of a subjective measure of awareness, Meta d', which until now has not been validated within a COVIS framework. …
Postures In Mobile Device Usage: Effects On Interpretation Bias, Mood, And Physical Tension, Gabriela Flores-Cruz
Postures In Mobile Device Usage: Effects On Interpretation Bias, Mood, And Physical Tension, Gabriela Flores-Cruz
Honors Undergraduate Theses
Past research has shown that there is a relationship between body posture and cognitive processes. However, postures used with technological devices has not been studied more extensively. The purpose of this study was to examine posture effects when using a mobile device on interpretation bias, mood, and physical tension. Each participant was randomly assigned one of three conditions: sitting slumped, sitting upright, or lying down. Participants were asked to complete the Scrambled Sentences Task (SST), a task of unscrambling emotional and neutral sentences, to measure their interpretation bias. Additional questions were asked to measure the participant's physical tension and mood. …
Draining Your Brain: The Effects Of Four Fatiguing Task Domains On Executive Function And Prefrontal Cortex, Salim A. Mouloua
Draining Your Brain: The Effects Of Four Fatiguing Task Domains On Executive Function And Prefrontal Cortex, Salim A. Mouloua
Honors Undergraduate Theses
The present study empirically examined the effects of four fatiguing task domains on executive function through participants' reaction time, accuracy, and brain activity in prefrontal cortex (PFC). Forty college-age participants were collected (16 males and 24 females), of which eleven were examined using a functional near-infrared spectroscopy (fNIRS) imaging system. The present study used a 4×2 mixed factorial design consisting of fatiguing task (arm contractions task, vigilance task, distance-manipulated Fitts' task, size-manipulated Fitts' task) as a between-participant variable and n-back testing period (pre-test versus post-test 3-back task) as a within-participant variable. Results indicated significant increases in 3-back performance after …
The Effects Of Presence And Cognitive Load On Episodic Memory In Virtual Environments, Paul Barclay
The Effects Of Presence And Cognitive Load On Episodic Memory In Virtual Environments, Paul Barclay
Electronic Theses and Dissertations
Episodic memory refers to an individual's memory for events that they have experienced in the past along with the associated contextual details. In order to more closely reflect the way that episodic memory functions in the real world, researchers and clinicians test episodic memory using virtual environments. However, these virtual environments introduce new interfaces and task demands that are not present in traditional methodologies. This dissertation investigates these environments through the lenses of Presence and Cognitive Load theories in order to unravel the ways that basic technological and task differences may affect memory performance. Participants completed a virtual task under …
If A Virtual Tree Falls In A Simulated Forest, Is The Sound Restorative? An Examination Of The Role Of Level Of Immersion In The Restorative Capacity Of Virtual Nature Environments, Jessica Michaelis
Electronic Theses and Dissertations
Stress and cognitive fatigue have become a pervasive problem, especially in Western society. Stress and cognitive fatigue can have deleterious effects not only on performance, but also on one's physical and mental health. This dissertation presents a study in which the aim is to investigate the effects of virtual nature on stress reduction and cognitive restoration. Specifically, this study assessed the effects of Immersion (Non-immersive, Semi-immersive, Fully-immersive) and Exploration (Passive vs Active) on stress reduction and cognitive restoration. Additionally, restoration from the most effective virtual nature environment was compared to that of taking an active coloring break. Eighty-three university students …
The Effect Of Reliability Information And Risk On Appropriate Reliance In An Autonomous Robot Teammate, Andrew Talone
The Effect Of Reliability Information And Risk On Appropriate Reliance In An Autonomous Robot Teammate, Andrew Talone
Electronic Theses and Dissertations
This research examined how information regarding a robot teammate's reliability and the consequences for mistakes made by a robot in its task influence reliance on the robot by a human teammate. Of interest in this research was the notion of appropriate reliance: relying on a robot teammate's decisions when it is performing well and not relying on its decisions when it is performing poorly. An experiment was conducted in which participants interacted with an autonomous robot teammate while performing a cordon and search operation within a virtual reality simulation environment. Participants were responsible for monitoring the perimeter of a search …
A Psychophysical Approach To Standardizing Texture Compression For Virtual Environments, Jeremy Flynn
A Psychophysical Approach To Standardizing Texture Compression For Virtual Environments, Jeremy Flynn
Electronic Theses and Dissertations
Image compression is a technique to reduce overall data size, but its effects on human perception have not been clearly established. The purpose of this effort was to determine the most effective psychophysical method for subjective image quality assessment, and to apply those findings to an objective algorithm. This algorithm was used to identify the minimum level of texture compression noticeable to the human, in order to determine whether compression-induced texture distortion impacted game-play outcomes. Four experiments tested several hypotheses. The first hypothesis evaluated which of three magnitude estimation (ME) methods (absolute ME, absolute ME plus, or ME with a …
Human Factor Effects Of Simulating Battlefield Malodors In Field Training, William Pike
Human Factor Effects Of Simulating Battlefield Malodors In Field Training, William Pike
Electronic Theses and Dissertations
In order to explore how to better utilize simulated odors for live training, a study of 180 United States Military Academy at West Point cadets was undertaken to determine whether pre-exposure to a simulated malodor may result in an amelioration of performance issues, as well as improving performance of a complex task. Exposure to malodors has long been shown to increase stress and escape behavior, and reduce performance of complex tasks, in addition to degrading other human factor areas. However, desensitization to a particular odor through a process known as olfactory adaptation, could ameliorate these performance issues. In this study, …
Eye Movements And Spatial Ability: Influences On Thinking During Analogical Problem Solving, Bradford Schroeder
Eye Movements And Spatial Ability: Influences On Thinking During Analogical Problem Solving, Bradford Schroeder
Electronic Theses and Dissertations
Classic studies have examined the factors that influence the way in which people can solve difficult "insight" problems, which require creative solutions. Recent research has shown that guiding one's eye movements in a pattern spatially congruent with the solution improves the likelihood of formulating a spatial solution. The authors in this line of research argued that guiding eye movements in a pattern spatially equivalent to the solution of the problem yields an embodied cognitive benefit that aids problem solving. Specifically, guiding eye movements leads to the generation of a mental representation containing perceptual information that helps a problem solver mentally …
Getting The Upper Hand: Natural Gesture Interfaces Improve Instructional Efficiency On A Conceptual Computer Lesson, Shannon Bailey
Getting The Upper Hand: Natural Gesture Interfaces Improve Instructional Efficiency On A Conceptual Computer Lesson, Shannon Bailey
Electronic Theses and Dissertations
As gesture-based interactions with computer interfaces become more technologically feasible for educational and training systems, it is important to consider what interactions are best for the learner. Computer interactions should not interfere with learning nor increase the mental effort of completing the lesson. The purpose of the current set of studies was to determine whether natural gesture-based interactions, or instruction of those gestures, help the learner in a computer lesson by increasing learning and reducing mental effort. First, two studies were conducted to determine what gestures were considered natural by participants. Then, those gestures were implemented in an experiment to …
Team Interaction Dynamics During Collaborative Problem Solving, Travis Wiltshire
Team Interaction Dynamics During Collaborative Problem Solving, Travis Wiltshire
Electronic Theses and Dissertations
This dissertation contributes an enhanced understanding of team cognition, in general, and collaborative problem solving (CPS), specifically, through an integration of methods that measure team interaction dynamics and knowledge building as it occurs during a complex CPS task. The need for better understanding CPS has risen in prominence as many organizations have increasingly worked to address complex problems requiring the combination of diverse sets of individual expertise to achieve solutions for novel problems. Towards this end, the present research drew from theoretical and empirical work on Macrocognition in Teams that describes the knowledge coordination arising from team communications during CPS. …
Noninvasive Physiological Measures And Workload Transitions:An Investigation Of Thresholds Using Multiple Synchronized Sensors, Lee Sciarini
Noninvasive Physiological Measures And Workload Transitions:An Investigation Of Thresholds Using Multiple Synchronized Sensors, Lee Sciarini
Electronic Theses and Dissertations
The purpose of this study is to determine under what conditions multiple minimally intrusive physiological sensors can be used together and validly applied for use in areas which rely on adaptive systems including adaptive automation and augmented cognition. Specifically, this dissertation investigated the physiological transitions of operator state caused by changes in the level of taskload. Three questions were evaluated including (1) Do differences exist between physiological indicators when examined between levels of difficulty? (2) Are differences of physiological indicators (which may exist) between difficulty levels affected by spatial ability? (3) Which physiological indicators (if any) account for variation in …
The Cry-Wolf Phenomenon And Its Effect On Alarm Responses, James P. Bliss
The Cry-Wolf Phenomenon And Its Effect On Alarm Responses, James P. Bliss
Retrospective Theses and Dissertations
Responses to alarms are assumed important. Yet failure to respond to alarms is recognized, although is not well understood or quantified. Conditions that might induce a failure to respond include alarm unreliability (i.e., numerous false alarms, the "cry-wolf" effect), high primary task demand, or low criticality of the alarm itself. The goals of this research were to substantiate the existence of the cry-wolf effect, quantifying its effect on operator performance, and to examine the relation between the cry-wolf effect and alarm criticality. One hundred thirty-eight UCF students alternatively performed two primary tasks, chosen from the Automated Performance Test System. Subjects …