Digital Commons Network^™

Hua Qian Zhao Zui Shou Looking For Trouble At Own Expense - A Study Of Tourist (Mis)Behaviors, Yue Li

Open Access Theses

The study sets two objectives. The first is to investigate how an array of tourist misbehaviors was perceived by the young generations of the United States and China. The second is to examine factors that could explain any perceptual differences between young Americans and Chinese. Five research questions were developed and addressed for the first objective through online surveys by comparing the perceptions of American respondents and Chinese respondents on a list of tourist misbehaviors. They are: 1) What are the annoyance levels of tourist misbehaviors perceived by American college students? 2) What are the annoyance levels of tourist misbehaviors …

Can Wearable Devices Reduce Burnout By Making People Aware Of Stress?, Rohit Mundayaliyath Mundayadan

Open Access Theses

Wearable fitness technology is advancing in its capabilities. Every new sensor collects new health data, and it becomes important to study how effectively this data can be utilized to help people lead healthier lives. The American Psychological Association found that Americans live with stress levels higher than what is considered healthy. Poorly managed stress can lead to burnout, which leads to unproductive workers. Burnout is known to cost businesses considerable money. The goal of this research study was to determine if burnout could be reduced through the use of a consumer wearable device along with smartphone apps that alerted wearers …

Dopamine D1 Receptor Activity In The Basolateral Amygdala Is Important For Mediating Fear, Reward And Safety Discrimination Learning, Ka Ho Ng

Open Access Theses

Post traumatic stress disorder (PTSD) patients frequently show impairment in safety learning (Jovanovic, Kazama, Bachevalier, & Davis, 2012). Since the amygdala is known to be critical for emotional processing(Wassum & Izquierdo, 2015) and dopamine signaling in the amygdala is important for mediating both fear and reward learning, current experiments examined the role of dopamine signaling in the BLA in mediating both safety learning and reward seeking. We manipulated dopamine D1 receptor activity with a D1 receptor agonist (SKF 38393) or D1 receptor antagonist (SCH23390) either systemically or infused directly into the BLA 20 minutes prior to training rats in a …

Task Manipulation Effects On The Relationship Between Working Memory Capacity And Go/No-Go Performance, Elizabeth A. Wiemers

Open Access Theses

Seemingly minor task manipulations can have large and sometimes unpredicted effects on task performance. Despite this, single tasks are typical in both research and assessment applications. This series of experiments aims to systematically investigate the differences between various perceptual and semantic versions of go/no-go tasks and their relationships with working memory capacity (WMC) with the goal of determining the cause of inconsistencies in the literature. Because these versions of the go/no-go have not previously been systematically studied, the first experiment does so. After determining which performance differences exist based on versions of both task and decision, and noting that these …

Seeking Certainty: Are People Who Are Experiencing Relational Doubt More Sensitive To Relationship Cues?, Christine Ann Daly

Open Access Theses

Experiencing uncertainty in one’s relationship is likely an aversive experience and a motivating factor in restoring confidence about where things stand. Thus, uncertain partners may place more weight on positive and negative interactions with their partner as they seek greater confidence in their evaluation of their relationship. The present research examined how partners responded to two different types of relationship information: a past relationship experience (Study 1, N= 154) and false feedback about its quality (Study 2, N = 154). Results suggest that while partners appear to place significance on positive information, regardless of their uncertainty, whether or not …

Set And Element-Level Compatibility Of Spatial And Location-Word Stimuli Paired To Eye-Movement, Vocal, And Keypress Response Modalities, Courtney Janai Griffin-Oliver

Open Access Theses

Set-level and element-level compatibility are two ways to differentiate between different components of stimulus-response compatibility. Element-level compatibility (the difference between incongruent and congruent mappings) has been shown in prior studies to be an increasing function of set-level compatibility (differences between pairings of stimulus and response ensembles). When manual and vocal response sets are paired with spatial (physical location) stimuli and verbal (location-word stimuli), the difference between the incongruent and congruent mappings is larger for the spatial-manual and verbal-vocal conditions than for the alternative pairings of lower set-level compatibility.

The common use of eye tracking technology in psychological experiments necessitates investigating …

Relationship Quality, Engagement, Hope, Self-Worth, And Health-Risk Behaviors In A Physical Activity-Based Positive Youth Development Program, Shaina Cole Riciputi

Open Access Theses

Physical activity-based positive youth development (PYD) programs have the potential to promote positive psychosocial and personal growth (Fraser-Thomas, Côté, & Deacon, 2005) and reduce health risk behaviors in youth (Tebes et al., 2007). Engagement, a motivationally-oriented construct representing the subjective quality of youths’ connection to a program (Skinner, Kindermann, Connell, & Wellborn, 2009), may help promote the positive outcomes associated with PYD participation. Based on competence motivation theory (Harter, 2012), program staff may affect engagement by providing instructional feedback related to program activities, and by fostering the interpersonal climate within the program. This study examined whether youths’ perceptions of their …

Impact Of Peer Relationship And Exposure To Violence On Posttraumatic Stress For Children At Risk For Maltreatment, Aura Ankita Mishra

Open Access Theses

Post-traumatic Stress (PTS) symptomology includes ruminating thoughts and feelings around trauma, inability to feel and express emotions, and avoidance of things related to the traumatic event (American Psychiatric Association, 2000). Children and youth exposed to child maltreatment (abuse and neglect) are at higher risk of experiencing PTS. Extra-familial support, including peer support can reduce post-traumatic stress among youth (Pina et al., 2008). In the present study, Witnessing, Victimization, and Both Witnessing and Victimization due to Exposure to In-Home Violence and Peer Relationship Quality are evaluated as to their relative impact on PTS for children at risk for child maltreatment. Peer …

Zephyr: A Social Psychology-Based Mobile Application For Long-Distance Romantic Partners, Dhiraj Bodicherla

Open Access Theses

Long-distance romantic relationships have become quite common nowadays. With CMC tools advancing day-by-day, their usage among LDRs is proliferating rapidly. Attachment-related anxiety and avoidance can block the ability to enjoy happy relationships. During such situations, remembering happy past moments can be comforting. In this study a mobile chat application that enables LDR couples to reminisce about happy moments was developed. This study primarily focuses on evaluating the usability of this mobile application using survey-based methods. System Usability Scale was considered to discuss the outcome of the study. The overall results provide useful recommendations for further improvements in the design of …

Regulating Belongingness Needs: Regulatory Focus And Responses To Social Exclusion, Katherine E. Adams

Open Access Theses

The current project examined the effect of social exclusion on regulatory focus motivations (promotion and prevention focus). Building on previous work, I posited that whether exclusion activates a more promotion or prevention focus depends on the person’s initial standing with the group (i.e., initial member vs. non-member). Additionally, I hypothesized that regulatory focus motivations should influence excluded individuals’ subsequent social reconnection efforts. In two studies, participants were socially excluded after either being included or not as an initial member of the excluding group; in a first study, participants also had the opportunity to reconnect with a new social partner. …

Quit Playing With Your Watch: Perceptions Of Smartwatch Use, Christopher M. Gaeta

Open Access Theses

This study identified perceptions and social norms that may affect smartwatch adoption. Interviews were conducted to identify perceptions of smartwatch use and norms that might affect those perceptions.

Smartwatch use was found to activate norms associated with wristwatch use – specifically, smartwatch users’ peers took offense to the users looking at their wristwatches. This study also found that norms prevent the use of smartwatches’ voice controls in public and various perceptions of smartwatch use and ownership.

Why Are Some Aggressive Adolescents Popular: Subgroups Of Chinese Aggressive Youth, Li Niu

Open Access Theses

This study examined the heterogeneity of Chinese aggressive adolescents to assess why some aggressive youths are popular and others are not. The sample included 1548 adolescents from eighth and eleventh grade in China and data were obtained from self-reports, teacher reports, and peer assessments. Results from a subgroup analysis in which aggressive youths were classified into high, average, and low popularity subgroups and a k-means cluster analysis indicated that there were two heterogeneous subgroups of aggressive youths who exhibited distinct behavioral profiles. Popular aggressive youths differed from less popular aggressive youths in their higher levels of aggression, prosocial behavior, …

Untangling The Relationship Between Narcissistic Traits And Behavioral Aggression Using A Ffm Framework, Colin Edward Vize

Open Access Theses

Recent work on the construct of narcissism has identified two distinct subtypes: grandiose and vulnerable narcissism. The two variants share an antagonistic core, but differ from one another in traits related to neuroticism and extraversion. We sought to explore how the differences between the subtypes may manifest in relation to behavioral aggression in the laboratory following provocation as well as in relation to a variety of self-report measures of aggression. In the case of behavioral aggression following provocation, our results showed a three-way interaction between gender, threat condition, and vulnerable narcissism such that males who reported higher levels of vulnerable …

Disability Visibility And Stigma Threat: Effects On The Performance, Stress, And Self-Control Of Disabled Workers, William Brice

Open Access Theses

Having a stigmatized disability is a depleting experience. For those with a disability, there are many factors that contribute to potential performance decrements in any given situation. Visibility of the disability, and the stigma connected to the disability are two such factors—which I argue based on research on motivation, regulation, and stress, contributes to the regulatory depletion experienced by disabled individuals. I conducted an experimental study where participants took part in a workplace simulation. Participants were given an artificially simulated disability and both the visibility of the disability and the stigmatizing nature of the disability were manipulated. I found a …

Enhancing Travel Experience With The Combination Of Information Visualization, Situation Awareness, And Distributed Cognition, Weiran Lei

Open Access Theses

With the new forms of travel introduced by new technologies of transportation and communication, a satisfied travel experience could be affected by various factors before and during a trip. Especially for road trips, traveling by car provides freedom on time control while leading to more possibilities of rescheduling initial plans made under time constraints. When overwhelmed with the need for changed travel context to avoid unexpected events that will require a serious change of initial plans, travelers need to find and access helpful contextual information quickly. This is a context-related decision making process that requires amplifying human situation awareness and …

Short-Term Effects Of A Western Diet On The Number Of Brainderived Neurotrophic Factor Immunoreactive Neurons In The Hypothalamic Arcuate, Ventromedial And Paraventricular Nuclei, Kaitlyn Elizabeth Gilland

Open Access Theses

Brain-derived neurotrophic factor (BDNF) is an important anorexogenic factor and has been shown to be involved in obesity. It is important to know when changes in BDNF expression occur to possibly prevent development of dietary obesity. BDNF mRNA decreases in response to long-term western diet (WD) exposure in the ventromedial hypothalamus (VMH), yet no study has investigated the short-term effects of WD on BDNF expression in the hypothalamus. It was hypothesized BDNF protein would mirror a decrease in BDNF mRNA in the VMH when mice were fasted for 48-hours or fed WD for 6-hours, 48-hours, 1-week and 3-week and decrease …

Understanding Representations Of Impulsivity In Dimensional Models Of Personality Pathology, Sarah Ann Griffin

Open Access Theses

Impulsivity is an individual difference that impacts many aspects of an individual's functioning; however, there as of yet has been no consensus on a single definition of impulsivity across the various fields that study it and its related outcomes. In fact, research at this point predominantly supports the idea that "impulsivity" is actually a multi-faceted construct comprised of multiple lower-order traits, but there is little agreement on what those lower-order facets should be. The purpose of the present study was to investigate the conceptualization of complex trait impulsivity within two new omnibus measures of maladaptive personality in terms of both …

Password Strength Analysis: User Coping Mechanisms In Password Selection, Brian Thomas Curnett

Open Access Theses

The security that passwords provide could be seriously flawed due to the way people cope with having to memorize and recall their passwords. The National Institute of Standards and Technology (NIST) standard that is used to measure the password strength, known as entropy, is designed for a single use and does not consider that users may choose to keep parts of their password across password changes. This study shows that a portion of users keep some information from previous passwords across changes. These habits which will be called coping mechanisms that over time serve to erode the protection provided by …

Seeing People, Seeing Things: Individual Differences In Selective Attention, Miranda May Mcintyre

Open Access Theses

Individuals differ in the extent to which they attend to their physical and social environments, but little empirical work has measured these differences at a cognitive level. To address this gap, two studies explored the association between attentional processes and Person and Thing Orientations. The first study measured visual selective attention toward person- and thing-related image components. In the second study, participants provided written responses about a set of images; linguistic analyses were conducted to assess attentional bias toward interest-congruent content. The results from both studies support motivated attention as a process through which interests in physical and social environments …

How Effective Is Group Feedback In Encouraging Occupants Of An Office Building To Reduce Energy Consumption?, Ushik D. Shah

Open Access Theses

Lighting contributes to a high percentage of the total energy use in office buildings. The lack of financial incentive often dissuades office workers from trying to save electricity at their work place. This thesis aims at reducing the total power consumed by an office building by using persuasive technologies on the occupants to promote environmentally conscious and energy saving behavior. ^ A three week field study was conducted by providing occupants of an office building feedback about their energy consumption along with messages to encourage them to save energy. Feedback was provided via television screens and flyers placed strategically at …

Marital Conflict And Child-Mother Attachment Relationships, Laura Y. Anaya

Open Access Theses

The present study explored the relations between marital conflict and child-mother attachment relationships. A nonclinical sample of 86 non-Hispanic Caucasian mother-child dyads participated in the study when children were approximately 3.5 years old (M = 3.73). Maternal sensitivity and children's attachment security were observed across three visits: one visit was in the home, and two visits were in the park. Mothers completed a series of questionnaires measuring a global index of marital discord, spousal verbal aggression, spousal physical aggression, and childrearing disagreements. The relations between the aspects of marital conflict on maternal sensitivity and children's attachment security with their …

Less Than Human: Dehumanization Underlies Prejudice Toward People With Developmental Disabilities, Laura Ruth Murry Parker

Open Access Theses

The present research examined the nature of prejudice toward people with developmental disabilities, its underlying root in dehumanization and implication for opposition to social policies, and the efficacy of two strategies for reducing this bias. In Study 1 and Study 2, dehumanization significantly predicted both greater prejudice and greater opposition to social policies benefiting people with Autism and Down Syndrome. Furthermore, prejudice significantly mediated the effect of dehumanization on social policy support. Dehumanization predicted greater prejudice, which led to less support for social policies. Building on the consistent association between dehumanization and prejudice in the first two studies, Study 3 …

The Role Of Attention In Retrieval Practice, Joshua W. Whiffen

Open Access Theses

Dividing attention during encoding is detrimental to learning. In contrast, dividing attention during retrieval appears to have very little effect on recall. However, very few studies have investigated whether dividing attention during initial recall has an impact on subsequent retrieval attempts. ^ Research on retrieval practice has clearly shown that retrieval is an active process that leads to important changes in memory that ultimately enhance long term retention. However, it has yet to be established exactly how retrieval practice derives its benefits. One possibility is that retrieval involves the reinstatement of temporal context, which leads to the updating or encoding …

Customer Envy At Service Encounters, Gerardo Anaya

Open Access Theses

Envy has been regarded as a complex emotion which can produce both positive and negative outcomes for consumers. This study explored the subjective experience of customer envy at service encounters in order to better understand how customers respond to unflattering comparisons with an envied customer. A questionnaire was designed to measure the cognitive appraisals, emotional responses, and consequences of customer envy. Study participants were also asked to share their envy incidents in the survey. A sample of 300 participants was collected and used for analysis. The findings illustrate that distinctively different patterns of cognitive appraisals such as preferential treatment, are …

The Impact Of An Omega-3 Enriched Diet On Hyperactivity And Biochemistry In An Animal Model For Attention-Deficit/Hyperactivity Disorder, Nadine M. Hammoud

Open Access Theses

Attention-deficit/hyperactivity disorder (ADHD) is the most diagnosed behavioral disorder in children. It affects around 5% of children worldwide and 11% of children in the United States, with rates increasing. Pharmaceutical treatments, such as amphetamines and methylphenidates, are not effective for everyone and are known to have unwanted side effects. While the etiology of the disorder is not yet fully understood, there are clear genetic and environmental components. Nutritional insufficiencies have recently become a popular environmental risk factor under investigation. Essential fatty acids (EFA), omega-3 polyunsaturated fatty acids (PUFA) in particular, are needed for proper brain development and function. Our lab …

Postural Sway In Infants At Low And High Risk For Autism Spectrum Disorder, Rachel C. Harris

Open Access Theses

ABSTRACT Harris, Rachel C. M. S., Purdue University, December 2014. Postural Control in Infants at Low and High Risk for Autism Spectrum Disorder. Major Professor: Laura J. Claxton. Autism Spectrum Disorder (ASD) is a neurodevelopmental disorder more commonly known for deficits in social and communication skills. More recently, aspects of motor development have been shown to be delayed in children with ASD, including deficits in their postural control abilities. Children with ASD have difficulty integrating information from their sensory systems to help control their balance. Infants at risk for ASD and infants who are later diagnosed with ASD have delays …

Capacity-Related Driver Behavior On Modern Roundabouts Built On High-Speed Roads, Shaikh Ahmad

Open Access Theses

The objective of this thesis was to investigate the factors that affect capacity-related driver behavior on modern roundabouts built on high-speed roads. The capacity of roundabouts is strongly affected by the behavior of drivers as represented by critical headway (critical gap) and follow-up headway (follow-up time). The effects of heavy vehicles (single-unit truck, bus, and semi-trailer) and area type (rural or urban) on roundabout capacity were investigated by comparing the critical headways for roundabouts located on high-speed and low-speed roads. The effects of nighttime conditions (in the presence of street lighting) were also considered. Data were collected using the Purdue …

Optimization Of Switch Virtual Keyboard By Using Computational Modelling, Xiao Zhang

Open Access Theses

In this thesis, I first reviewed some keyboard technologies used by people with motor difficulties, and described design elements that influence efficiency. I cast the design of a switch keyboard as an optimization problem, and arrangement of keys on such a keyboard as a Mixed Integer Programming problem. One significant variable in the MIP problem, the error rate, is related to several other variables. I treated modeling of the error rate as a parameter estimation problem, and used a data mining method. I designed HCI experiments to gather data for parameter estimation, using Bayesian logistic regression model. The empirical data …

The Parkinson's Experience Of Group Physical Activity: Understanding Social Support, Social Comparison, Physical Self-Perceptions, And Posttraumatic Growth, Tammy L. Sheehy

Open Access Theses

Group physical activity programs for clinical populations can provide opportunities for adaptive social interactions, improving perceptions of competence, and may facilitate posttraumatic growth (positive psychological changes resulting from traumatic life experiences). Therefore, the purpose of this study was to examine how people with Parkinson's experience social interactions and physical challenges in a group physical activity program, and to investigate what role they think those experiences play in posttraumatic growth. The study employed interpretative phenomenological analysis methodology (Smith, Flowers & Larkin, 2009). N= 20 participants ( n = 12 women; age = 56-79 years) in a boxing-based group exercise program …

Dismantling The Great Wall Of Prejudice: A Look At Centrality And Issue Importance In The Perpetuation Of Influence And Prejudice Reduction, Zachary Robert Wittrock

Open Access Theses

This study sought to utilize social network analysis to better understand how prejudice reduction can be spread from one person to another via interpersonal influence. Different types of prejudice reducing interventions were combined into one intervention. The role of centrality in the spread and perpetuation of influence was examined by measuring prejudice reduction in socially connected individuals who did not undergo the direct intervention. To further understand the role of centrality in prejudice reduction, the concept of issue importance was included to understand the differential impact that centrality has on interpersonal influence. Study 1 examined the effectiveness of the intervention, …