Digital Commons Network^™

Attentional Biases In Social Anxiety: An Investigation Of Rumination, Katie L. Walters

Theses and Dissertations (Comprehensive)

Cognitive models of anxiety posit that socially anxious individuals’ attention is disproportionally biased for threatening information in the environment. One component in the cognitive model of social anxiety that has not been examined, in terms of the attentional bias, is rumination (i.e., the dwelling on perceived inadequacies). The purpose of the present research was to examine the impact that rumination had on attentional biases in social anxiety as measured through the use of a Rapid Serial Visual Presentation (RSVP) stream. When two target stimuli (T1 and T2) are presented amongst distractor stimuli in rapid succession it is hard to process …

Are Health Care Professionals Addressing The Psychological Aspect Of Athletic Injury? A Survey Of Injured Athletes, Hayley C. Russell

Theses and Dissertations (Comprehensive)

Millions of athletic injuries occur annually. Athletic injures involve not only physical distress but psychological distress as well. Nevertheless, injured athletes rarely see a mental health care professional. It has been suggested that health care professionals, such as physicians, physiotherapists, and athletic therapists, are well positioned to address the psychological aspect of injury. Health care professionals report that they sometimes address the psychological aspect of injury with the athletes they treat. There is limited research, however, on what injured athletes perceive to be the role of health care professionals in addressing the psychological aspect of injuries. Therefore the purpose of …

Investigating The Relationship Between Motor Resonance And Nonconscious Mimicry, Jeremy Hogeveen

Theses and Dissertations (Comprehensive)

Motor resonance refers to the mirroring of observed actions in one’s own motor system. It is possible that motor resonance is the neural mechanism underlying nonconscious mimicry (NCM)—the ubiquitous phenomenon wherein people mimic the behaviour of interaction partners (Chartrand & Bargh, 1999). Previous research has shown that priming interdependent selfconstrual (interSC) increases mimicry (van Baaren et al., 2003). If motor resonance is the mechanism underlying NCM, then a manipulation known to facilitate mimicry (i.e. interSC) should increase motor resonance. In experiment one, we variably primed independent selfconstrual (indSC)—known to inhibit mimicryv—and interSC in a motor priming paradigm. Participants observed videos …

Administration Of A Cannabinoid Receptor Antagonist Following Chronic ∆9-Tetrahydrocannabinol Induces Physical Withdrawal In The Absence Of A Dysphoric State, Brittany Ford

Theses and Dissertations (Comprehensive)

The selective cannabinoid CB1 receptor antagonist SR141716 has been shown to precipitate physical signs of withdrawal in ∆⁹-tetrahydrocannabinol (THC)-dependent rats; however, the affective state associated with this withdrawal state has not yet been well characterized. Thus, the aim of present study was to examine the physical and affective consequences of SR141716-precipitated THC withdrawal in male Sprague-Dawley rats. Rats were injected with THC (5 mg/kg, i.p.) or its vehicle twice daily for 13 consecutive days, and challenged with SRI 41716 (1 mg/kg, i.p.) or its vehicle 1 h later on days 3, 5, 7, 9, 11, and 13. Consistent …

Poverty And Disability: The Need For Inclusion, Alexis Buettgen

Theses and Dissertations (Comprehensive)

Despite the fact that people with disabilities are disproportionately represented among the world’s poorest, they have been marginalized in poverty research and have had minimal involvement in poverty reduction strategies. The current study addresses this issue, by providing an opportunity for people with developmental disabilities to control and direct the research agenda, and to have an active voice on the topic of poverty and disability. Thus, the present study aims to support the development of poverty reduction strategies by raising key issues and breaking down barriers to participation for people with developmental disabilities. This study utilized a social power framework …

An Evaluation Of A Dialogic Book-Reading Program For At Risk Children, Daniel Anthony Colangelo

Theses and Dissertations (Comprehensive)

Children from low-income backgrounds are at a higher risk for reading difficulties partly because they are read to less frequently in the home (Adams, 1990). When shared reading does occur in low-income homes, it is usually of poorer quality when compared to reading in middle- or upper-income homes (Arnold, Lonigan, Whitehurst, Epstein, 1994). Dialogic reading, a form of enhanced discussion and structured questioning during shared-book reading, can be a cost effective way of improving the language and literacy skills of young children. The current research examines the effectiveness of a community-based, four-month dialogic reading intervention called the Dialogic Reading Club …

Mathematical Modeling And Control Of Nonlinear Oscillators With Shape Memory Alloys, Mohamed Bendame

Theses and Dissertations (Comprehensive)

Shape memory alloys (SMAs) belong to an interesting type of materials that have attracted the attention of scientists and engineers over the last few decades. They have some interesting properties that made them the subject of extensive research to find the best ways to utilize them in different engineering, biomedical, and scientific applications. In this thesis, we develop a mathematical model and analyze the behavior of SMAs by considering a one degree of freedom nonlinear oscillator consisting of a mass connected to a fixed frame through a viscous damping and a shape memory alloy device. Due to the nonlinear and …

What Pushes Your Buttons? How Knowledge About If-Then Personality Profiles Can Benefit Relationships, Charity A. Friesen

Theses and Dissertations (Comprehensive)

Past research has debated the benefits of having accurate knowledge about a close other’s personality. However, this research has examined personality knowledge solely in terms of trait knowledge. We hypothesize that within close relationships, accuracy about personality profiles—a person’s “if-then” pattern of responses to situations—may often be more useful than accuracy about personality traits. We provide the first studies of if-then accuracy in close relationships, investigating trigger profiles, which describe a person’s unique pattern of reactivity to various potentially aversive interpersonal situations. For our studies, we first developed the Trigger Profile Questionnaire, consisting of 72 descriptions of potentially bothersome interpersonal …

Evaluation Of The Use Of Healing Imagery In Athletic Injury Rehabilitation, Joel Cressman

Theses and Dissertations (Comprehensive)

Healing imagery can be defined as both visualizing affirmative images ofinternal physiological healing occurring in an injured area and visualizing oneselfas healthy and fully functioning (Driediger, Hall, & Callow, 2006). Healing imagery has been found to effectively reduce the time of recovery from various athletic injuries when used in combination with other mental skills, such as self-talk and relaxation (Ievleva & Orlick, 1991). However, the literature remains void of a study that specifically examines healing imagery and the potential benefits that may accompany the regular application ofhealing imagery techniques alone. This study examined the effects ofan imagery intervention on the …

Reconstructing Sex: Women Having Sex With Women, Alixandra Holtby

Theses and Dissertations (Comprehensive)

This study examines the experience of exclusion from the dominant understandings of sex for women who have sex with women, including queer, pansexual, bisexual, and lesbian women. Using ideas of the constructed nature of sex, particularly the use of sexual scripts (Simon & Gagnon, 1973), as well as the (hetero)sexist context in which these scripts are formed, qualitative interviews with 11 queer, pansexual, bisexual, and lesbian women were analyzed regarding their development of their understandings of what constitutes sex, their expectations and experiences of sex, their negotiation of desire and sexual identity, and their perspectives on sex between women and …

Age And Amount Of Experience On Children’S Representations Of Repeated Events, Una Glisic

Theses and Dissertations (Comprehensive)

The current study examined how children’s event representations changed with increasing experience with an event. There were 81 children (40 4-to-5-year-olds, and 41 7-to-8-year-olds) who participated in either 2 (n = 41) or 4 (n = 40) repeated event sessions, which consisted of activities such as playing a counting game, and/or doing a puzzle. Event sessions included three different item types; variable items (which changed at every occurrence), fixed items (which stayed constant throughout the event), and new items (which only occurred once throughout the series). Children were interviewed 5-7- days following their last event session using free-recall, …

Two Sides To Every Trauma: The Role Of Posttraumatic Growth And Decline In Well-Being, Danay C. Novoa

Theses and Dissertations (Comprehensive)

Research clearly demonstrates how traumatic events can damage psychological and physical health (Janoff-Bulman, 1992). However, Tedeschi and Calhoun (2004) argue that posttraumatic growth can also occur following adversity. Although largely well-received, their theory and the posttraumatic growth inventory (PTGI) have been critiqued as well. For instance, Wortman (2004) argues that Tedeschi and Calhoun give insufficient consideration to the negative consequences of traumatic events. Concurring with Wortman, we contend that the PTGI, constructed to measure only growth, does not allow participants the opportunity to report decline in any domain. This scale design may artificially inflate the apparent occurrence of posttraumatic growth …

Moustachioed Men And Marathon Moms: The Marketing Of Cancer Philanthropy, Jenna Leigh Jacobson

Theses and Dissertations (Comprehensive)

This thesis is a theoretically based feminist critical analysis of the politics, problems, and differences around the philanthropy related to breast cancer in comparison to prostate cancer with a focus on the Canadian reality. It is an analysis of the leading national volunteer-based organization dedicated to breast cancer philanthropy: The Canadian Breast Cancer Foundation, and the only national foundation dedicated to the fight against prostate cancer: Prostate Cancer Canada. The concrete grounding is an in-depth analysis of the primary fundraising event for each charity: the CIBC Run for the Cure and Movember Canada. Breast cancer and prostate cancer attack a …

The Dynamics Of Chronically Bioaccumulated Cd In Rainbow Trout (Oncorhynchus Mykiss) During Both Moderately Hard And Soft Waterborne Exposures, Jessica Milne

Theses and Dissertations (Comprehensive)

Aquatic organisms respond to metal exposures by modulating uptake, elimination and detoxification capacity and, therefore, it is difficult to link accumulation within fish to adverse chronic effects. When fish are exposed to sublethal concentrations of metal, physiological responses follow a damage-repair scenario with rapid uptake into the gills followed by transfer via the circulatory system and accumulation into key organs such as the liver and kidney. Anthropogenic sources of cadmium (Cd) arise mainly from mining, smelting, and refining sulphide ores of Zn, Pb and Cu (Norton et al., 1990). The free divalent ion (Cd²⁺) is the toxic form …

Raising An Issue In A Relationship: I’Ll Tell You What’S Wrong, But Only If I Think It Will Help, Megan H. Mccarthy

Theses and Dissertations (Comprehensive)

When we become dissatisfied with the actions of a close partner, we face a decision: to disclose our concerns to the other person (voice), or to instead remain silent. Past research suggests that degree of dissatisfaction and issue importance are not important predictors of this decision, however, research on communication in relationships points to the potential importance of outcome expectancies. Previous research has primarily focused on expectancies for relationship outcomes, however, and has yet to consider the relative contribution of expectancies for instrumental outcomes. Four studies assessed the hypothesis that instrumental expectancies are most important for how much a person …

Marketing The Academy: A Theoretical Analysis Of Consumption, Identity, And The Branding Of Contemporary Universities, Anthony David Frost

Theses and Dissertations (Comprehensive)

Consumer culture has long presented ethical issues for the academic world. As the nature and processes of consumer culture have become more integrated with the operation of universities, the debate has escalated. Over the past 15 years, institutions have made increasing use of sophisticated marketing techniques and, while many administrators applaud their use to define, grow, and protect a school’s reputation, many critics have decried what they see as nothing more than crass commercialism. This study is an examination of the development of consumer culture after World War II, when large numbers of students entered post-secondary school. Critical analysis is …

The Effects Of Associative Interference, Stimulus Type, And Item Familiarity On Associative Recognition Memory, Fahad Naveed Ahmad

Theses and Dissertations (Comprehensive)

This study investigated whether recognition memory requires two retrieval processes (i.e., familiarity and recognition) as stated by the Dual process theory or requires one retrieval process (i.e., familiarity) as stated by the Single process theory. The first experiment investigated the effects of A-B, A-C, A-D-, A-E interference on both word and picture pair recognition. As expected, it was found that a picture superiority effect was present in the baseline condition, but was reduced in the interference condition. Moreover, in the baseline condition, a non-mirror pattern (i.e., hits higher for picture pairs, but false alarm rates were the same) was present …

The Influence Of Dopamine Replacement On Movement Impairments During Bimanual Coordination In Parkinson’S Disease (Pd), Matt Brown

Theses and Dissertations (Comprehensive)

The purpose of the current thesis was to investigate the influence of dopamine replacement on performance during bimanual coordination in individuals with Parkinson’s disease (PD) There has been conflicting research on the cause of movement impairments such as coordination deficits, slowed switching and upper limb freezing that occur during coordinated movements It is unclear whether decreased function of the dopaminergic system after withdrawal from dopamine replacement is responsible for these deficits Healthy age-matched control participants were compared to PD participants in two experiments to determine the movement impairments that occurred during three-dimensional wrist flexion-extension bimanual coordination as a result of …

Insights Into The World Of Pea Nodulation Using The Low Nodulator R50, Scott Clemow

Theses and Dissertations (Comprehensive)

Cytokinin oxidase (CKX) is the enzyme responsible for the degradation of cytokinin, a class of adenine-based plant hormones that stimulate cell division, among other physiological processes. The pea mutant R50 is characterized by having a pale leaf phenotype, dwarf stature, few lateral roots, low nodule formation, and elevated levels of endogenous cytokinins in its shoots, roots and nodules. When compared to that of the wild-type Sparkle, total CKX activity is low but the transcript levels of PsCKX1 are significantly higher. In this study, I investigated the expression of PsCKX1 throughout the development of a nodule and the localization of PsCKX1 …

Distribution Of Stamped Dressel 20 Amphorae Produced At Axati In Roman Baetica: A Quantitative Study Of Olive Oil Consumption Levels At Military And Civilian Sites, Ryan Hughes

Theses and Dissertations (Comprehensive)

The Roman province of Baetica in southern Spain produced vast amounts of olive oil during the first three centuries CE. The small town of Axati is situated in an area now known as Lora del Rio along the Baetis River, the modern Guadalquivir. This town exported large amounts of olive oil which was distributed throughout the Roman Empire from northern Britain to Alexandria. This study will look at the stamped olive oil amphorae, Dressel 20 type, which were produced there and transported throughout the Empire. The distribution and consumption levels evidenced by these stamped amphorae are quantified here in order …

Insights Into Genome Functional Organisation Through The Analysis Of Interaction Networks, Andre Masella

Theses and Dissertations (Comprehensive)

Using computational techniques to identify orthology and operon structure, it is possible to find functional interactions between genes, which, together, define the genetic interactome. These large networks contain information about the relationships between phenotypes in organisms as genes responsible for related abilities are often co-regulated and reasserting of these genes can be detected in the operon structure. However, these networks are too large to analyse by hand In order to practically analyse the networks, a computational tool, gisql, was developed and, using this tool, the connectivity patterns in the genetic interactome can be analysed to understand high-level organisation of …

The Pleiotropic Mutant R50 (Sym16): A Link Between Cytokinin And Starch Metabolism May Explain Its Seed Phenotype, Chengli Long

Theses and Dissertations (Comprehensive)

Cytokinins are a class of adenine-based plant hormones that stimulate cell divisions and are therefore essential for organ growth and development. The role that cytokinin plays in nodulation and that of R50 (syml6) in particular is very complex. In this study, a cytokinin antagonist and a cytokinin oxidase (CKX) inhibitor were used as tools to study the effects of cytokinin perception or cytokinin degradation on nodulation in pea, the cytokinin transduction pathway, especially that induced by CRE1/AHK4, and CKX play a significant role in pea nodulation. Comparison of the full length sequences PsCKX2 cDNAs from Sparkle and R50 …

The Role Of The Subtalar Joint And The Influence Of Footwear Characteristics During Slip Perturbations, Jessica M.R. Berrigan

Theses and Dissertations (Comprehensive)

Slips are considered one of the most common causes of major accidental injuries. The objective of this thesis is two-fold. The first objective is to determine the role of the subtalar joint during a slipping perturbation. The second is to determine if certain footwear characteristics, that may restrict the normal function of the subtalar joint (i.e., insole stiffness and heel counter stiffness), will change the response to unexpected heel contact slipping perturbations.

Forty-two participants (30 females, 12 males) were recruited from a university aged population (21.19 years ± 2.7 years). Trials were performed over a 10 m walkway with rectangular …

The Experience Of New Workers In The Field Of Child Welfare, Teena M. Shah

Theses and Dissertations (Comprehensive)

This qualitative study examines the experiences of 18 new child protection workers in Southern Ontario. The workers, who had 5 to 18 months experience in child welfare, were interviewed regarding their experiences of joining a child welfare agency. A follow up focus group was conducted with child protection supervisors. The study examined what motivated workers to join, their training experience, the rewards and supports and the overwhelming nature of the experience. The study illuminated the struggles that new workers experience in child welfare with respect to value and belief challenges. The study reflects on the implications of new worker experiences …

Evidence Verité And The Law Of Film, Jessica Silbey

Faculty Scholarship

This paper explores a puzzle concerning the authority of certain images that increasingly find themselves at the center of legal disputes: surveillance or “real time” film images that purport to capture an event about which there is a dispute. Increasingly, this kind of “evidence verité” is used in United States courts of law as the best evidence of what happened. Film footage of arrests, criminal confessions, photographs of crime scenes (during and after) is routinely admitted into court as evidence. It tends to overwhelm all other evidence (e.g., testimonial or documentary) and be immune to critical analysis. Why would this …

The Role Of Auditory Feedback On The Control Of Voice Fundamental Frequency (F0) While Singing, Dwayne Nicholas Keough

Theses and Dissertations (Comprehensive)

Whether we are learning how to play a new instrument, song, or even learn a second language, the nervous system relies on various forms of sensory feedback to establish task-specific sensorimotor representations. Over time, the plasticity of the nervous system permits neural reorganization and the formation of an ‘internal model’. It has been suggested that internal models represent neural maps of skilled movement that store the relationship between the motor commands, environment and sensory feedback responsible for their production. These internal representations are often investigated by altering a particular aspect of the sensory feedback associated with a given task. Arguably …

The Dance In Contexts: Exploring The Complexity Of The Helping/Healing Process With A Focus On Client Satisfaction, Margriet De Zeeuw Wright

Theses and Dissertations (Comprehensive)

This multiperspectual study was undertaken to explore and describe the complexity of the helping / healing process in a community-based counselling centre. The standard for evaluation was client satisfaction. Client and worker participants’ perspectives were sought in an exploration of whether and / or how the client as an individual, the worker both as an individual and as a staff member, the therapeutic relationship, and the organizational setting impacted client satisfaction.

Former clients of the agency (N=400) were asked to complete Greenfield, Attkisson, and Pascoe’s (©2005) Service Satisfaction Scale (SSS-30). Respondents (N=73) were profiled using descriptive statistics which led the …

Rethinking Biodiversity Conservation Effectiveness And Evaluation In The National Protected Areas Systems Of Tropical Islands: The Case Of Jamaica And The Dominican Republic, Suzanne Mae Camille Davis

Theses and Dissertations (Comprehensive)

Island conservation theory and practice with regard to conservation of tropical terrestrial biodiversity in protected areas systems has yet to be adequately addressed in conservation literature. This knowledge gap is identified as a key contributor to the adoption of scientific principles for in situ biodiversity conservation, and “universal” conservation and protected area management paradigms that are unsuitable for island contexts and geographical scale. The underlying assumption is that “universal” concepts of biodiversity conservation, protected areas management, and evaluation of their effectiveness are transferable to the ecological and socio-economic contexts of tropical islands. The expected outcome of this knowledge transfer is …

Spatial And Spatial-Temporal Analysis Of Grizzly Bear Movement Patterns As Related To Underlying Landscapes Across Multiple Scales, Barbara Lynn Carra

Theses and Dissertations (Comprehensive)

Studying the movements of grizzly bears (Ursus arctos) in Alberta is imperative for scientifically informed management practices. To properly balance industry requirements with conservation imperatives, it is necessary to understand the spatial and spatial-temporal movement patterns of grizzly bears as they relate to underlying landscape properties. As part of the Foothills Research Institute Grizzly Bear Research Program, this dissertation explored both fine and largescale movement patterns generated from global positioning system (GPS) radiotelemetry data.

Between 1999 and 2005, grizzly bears were captured and radio-collared across western Alberta. The temporal resolution of GPS data collection had a large impact …

Grounding Diaspora In Experience: Niagara Mennonite Identity, Cynthia Anne Jones

Theses and Dissertations (Comprehensive)

This qualitative case study grounds theoretical notions of diaspora in personal accounts of Russian Mennonites living on the Niagara peninsula of Canada. The focus is on successive, complex interrelationships with ‘place’ (in a fixed sense, and a globally connected sense), with attention to gender, generation, and life-stage. How have these individuals experienced diaspora, and how has this influenced their culture and identity? Interrelationships with place are examined within an analytical framework composed of three key elements as identified in diaspora literature: cultural hybridity, social heterogeneity (internal divisions), and responsibility flows. The results are both descriptive and theoretical, featuring first person …