Psychology

Exploring Characteristics of those Utilizing Different Modalities of Treatment for Substance Use Disorders

Type:
Names:
Creator (cre): Fox, Patrick, Thesis advisor (ths): Im-Bolter, Nancie, Degree committee member (dgc): Visser, Beth, Degree committee member (dgc): Agostino, Alba, Degree granting institution (dgg): Trent University
Abstract:

Substance use disorder (SUD) is a pervasive psychological disorder detrimentally impacting both individuals and society on a psychological, economic, and social level. The best protocol for treating SUD as well as what defines success in treatment is often debated in the research. However, researchers agree that different psychosocial factors can influence outcomes. The literature suggests that mood, dark personality traits (narcissism and psychopathy), social supports, and state of change may be associated with treatment for SUD. The current study explored whether these factors predicted the type of treatment (abstinence-based or harm reduction) individuals with SUD were in. The sample consisted of 37 participants in a 12-step abstinence-based program and 65 in a harm reduction program at a local hospital. Results indicated that those in abstinence-based groups reported significantly fewer symptoms of anxiety and depression, lower levels of narcissism and psychopathy, more social supports, and advanced stage of change in comparison to those attending a harm reduction program. In addition, depression, narcissism, and perceived social support were significant predictors of treatment group membership. These findings suggest that those involved in abstinence-based groups appear to experience overall more wellness than those in harm reduction. Although further research is needed to specify the relations among factors, this study is a step towards understanding the difference between people who utilize one program versus another.

Author Keywords: Abstinence, Addiction, Harm Reduction, Personality, Treatment

2020

Mindful or Mind Full? Exploring the Associations Between Relationships, Mindfulness, and Stress

Type:
Names:
Creator (cre): Enright, Jocelyn, Thesis advisor (ths): Scharfe, Elaine, Degree committee member (dgc): DeCicco, Teresa L, Degree committee member (dgc): Smith, Carlyle, Degree granting institution (dgg): Trent University
Abstract:

Past research has indicated a relationship between attachment and mindfulness; however, less is known about the behavioural outcomes of this relationship. The purpose of the present study was to test a new, more in-depth structural model of the relationship between attachment and mindfulness, and further explore the effects of attachment and mindfulness session type (group or individual) on attendance and willingness to continue mindfulness. As predicted, both the self and other model of attachment were positively associated with mindfulness. Surprisingly, individuals who were initially interested in the follow up sessions reported significantly more negative models of others than individuals who were not interested. For the in-person sessions, no significant differences were found for participant attendance or willingness to continue based on attachment and/or type of session. The discussion of results highlights the importance of people's view of others for developing mindfulness traits and developing strong client-provider relationships in therapeutic and intervention settings.

Author Keywords: Adult attachment, Mindfulness, Stress

2020

A Comparison of Nature Activities: Citizen Science, Environmental Education, and Mere Nature Exposure

Type:
Names:
Creator (cre): Hooke-Wood, Frederick Alexander David, Thesis advisor (ths): Nisbet, Elizabeth K, Degree committee member (dgc): Chan-Reynolds, Michael G, Degree granting institution (dgg): Trent University
Abstract:

Research shows spending time in nature can result in many positive effects, including improving mood, connection to nature, and environmental concern. Certain activities may increase these positive effects of nature exposure. Citizen science (non-scientists collecting data to contribute to science) and environmental education (receiving information about the environment) are two potential ways to boost the positive effects of nature exposure. But little research has been done comparing citizen science with environmental education. To address this gap in knowledge, undergraduate participants were randomly assigned to spend five minutes outside daily, for two weeks, either simply observing nature, looking for birds, or looking for and recording bird sightings. Over time, all groups experienced improvements in mood, connection to nature, and environmental concern. However, connection to nature increased the most in people who simply observed nature. Unexpectedly, simply spending time in nature was the most effective intervention. Limitations and future directions are discussed.

Author Keywords: Citizen Science, Emotional Well-Being, Environmental Concern, Environmental Education, Nature Exposure, Nature Relatedness

2020

Sextual Consent: Examining the Relationships Between Sexting, Perceptions of Sexual Consent, and Nonconsensual Sexual Experiences

Type:
Names:
Creator (cre): Hisson, Michelle Susan, Thesis advisor (ths): Humphreys, Terry, Degree committee member (dgc): Kennett, Deborah, Degree granting institution (dgg): Trent University
Abstract:

The purpose of the current study was to explore the relationships between sexting, perceptions of sexual consent, and nonconsensual sexual experiences (NSEs). Participants consisted of 100 community members and 851 undergraduate students enrolled at Trent University. It was found that males were more likely than females to interpret ambiguous sexual scenarios as consensual, but consent perceptions were not influenced by sexting. When examining past personal experiences, males interpreted received sext messages as an indicator of consent significantly more than females, while females were more likely to interpret received messages as more harassing. NSEs were significantly related to sexting behaviours: those who engage in sexting were more likely to also have experienced a NSE, and 20.5% of participants in the current study reported having experienced a NSE with a consensual sexting partner. The current study has important implications for the future of sexting research, practice, and policy.

Author Keywords: nonconsensual sexual experiences, sexting, sexual assault, sexual consent, sexual harassment

2019

Sexting and Satisfaction: Was it Good for You?

Type:
Names:
Creator (cre): Bridle, Erik Brynjhulf, Thesis advisor (ths): Humphreys, Terry, Degree committee member (dgc): Scharfe, Elaine, Degree granting institution (dgg): Trent University
Abstract:

Sexting was explored in relation to cohabitation status, general and sexual communication, as well as the anxious and avoidant dimensions of attachment. The present study was focused the distinction between lifetime and recent sexting, in an attempt to more accurately assess the relationships between the examined factors and sexting behaviours. Individuals in long-distance relationships were more likely to report recently sexting and engaged more frequently than those in cohabitating relationships, but did not differ in their levels of sexual satisfaction. Recent sexters reported higher levels of sexual communication compared to lifetime sexters, and sexual communication was positively, though weakly, correlated with sexting frequency. The present study was unable to support a predictive relationship between recent sexting and levels of attachment anxiety or avoidance. These results highlight the importance of exploring the context in which sexting occurs, as well as distinguishing between lifetime and recent sexters in future sexting research.

Author Keywords: Attachment, Long Distance Relationship, Recent Sexting, Satisfaction, Sexting, Sexual Communication

2019

Context Fear Memory: Escaping the Hippocampus

Type:
Names:
Creator (cre): Kishun, Swarsattie, Thesis advisor (ths): Lehmann, Hugo, Degree committee member (dgc): Fournier, Neil, Degree granting institution (dgg): Trent University
Abstract:

Distributing contextual fear episodes makes the memory become HPC-independent, meaning increasingly reliant on non-HPC memory structures. It is unclear, however, whether distribution of the conditioning episodes alone is sufficient or whether a combination of distribution and high conditioning saliency is necessary to make the memory become HPC-independent. To resolve this issue, rats were trained using a distributed contextual fear conditioning protocol in which foot-shocks were manipulated to create a low (0.4mA), intermediate (0.7 mA) and high (1.0 mA) saliency condition. This thesis also aimed to determine brain structures supporting the HPC-independent memory by assessing retention-induced c-fos expression in the basolateral- amygdala, perirhinal and anterior cingulate cortices. The results suggest that HPC lesion rats in the high saliency condition displayed similar level of freezing as control rats, indicating "strongly salient" and distributed episodes creates a HPC independent memory. c-fos expression suggests together, an increased context representation in the perirhinal and anterior cingulate cortices and a strengthened fear representation in the basolateral-amygdala supports the HPC-independent memory.

Author Keywords: context fear memory, distributed reinstatements, hippocampus, IEG, rat, saliency

2019

Altered Hippocampal Regulation of Immediate Early Genes after Pentylenetetrazol-Induced Seizures

Type:
Names:
Creator (cre): Kalinina, Alena, Thesis advisor (ths): Fournier, Neil M, Degree committee member (dgc): Lehmann, Hugo, Degree granting institution (dgg): Trent University
Abstract:

Seizures induce long-term changes in gene expression in the hippocampus. Experimental evidence has demonstrated a significant effect of epileptic activity on the activity of neurons that participate in complex cognitive and behavioural processes. The present series of experiments involving kindling with subconvulsive doses of PTZ demonstrates a link between seizures and altered immediate early gene expression within the hippocampus and dentate gyrus. In addition, newborn hippocampal neurons were shown to have decreased induction of plasticity-related genes, suggesting deficits in activity-dependent recruitment. These findings may shed light on the mechanisms underlying epileptogenesis and epilepsy-related hippocampal dysfunction in human patients.

Author Keywords: hippocampus, IEGs, kindling, neurogenesis, seizures

2019

Women's Lived Experience of Risk in Pregnancy

Type:
Names:
Creator (cre): LeBreton, Krystal May, Thesis advisor (ths): O'Hagan, Fergal, Degree committee member (dgc): Scharfe, Elaine, Degree committee member (dgc): McIntosh, Michele, Degree granting institution (dgg): Trent University
Abstract:

Cardiovascular disease (CVD) prevention, treatment and outcomes in women remain largely inequitable globally. Unique sex-specific stages of life, including pregnancy conditions, and their influence on cardiac risk is a growing area of research (Norris et al., 2020). For example, preeclampsia is strongly associated with CVD risk. This connection has led to prevention interventions such as postpartum risk clinics. Research to date on pregnancy and chronic disease is rooted in the medical paradigm of risk and lacks women's lived experience. The present study qualitatively explored illness and risk perceptions of women with risky pregnancy conditions. Some participants felt self-blame for their conditions. Consequences and severity were focused on "baby first", while maternal risk was viewed in the distant future. Aspects of the pregnancy experience, including prompt access to mental health support, was viewed as a "blessing in disguise". Risks, such as lack of agency, and benefits of healthcare risk communication and intervention and implications for practice were also explored.

Author Keywords: communication, critical, health care, phenomenology, pregnancy, risk

2020

What Nature is Best?: Testing the Effects of Green and Blue Space on Mood and Environmental Concern

Type:
Names:
Creator (cre): Lachance, Danielle, Thesis advisor (ths): Nisbet, Lisa, Degree committee member (dgc): Summerfeldt, Laura, Degree committee member (dgc): Elliott, Paul, Degree granting institution (dgg): Trent University
Abstract:

Connecting with nature benefits human and environmental health, however it is unclear whether certain types of nature influence people differently. Research has primarily focused on green spaces (vegetation-rich areas), but recent cross-sectional studies suggest that green spaces with blue space (natural water elements) may have additional well-being benefits. A quasi-experimental design compared the effects of green spaces with or without water on mood and environmental concern. Students (N = 193) were randomly assigned to walk along campus green (drumlin) or blue (river) spaces. Both walks improved students' mood, especially for those who had a stronger preference for the area. Students in both conditions reported more sustainable behaviours when followed up one week and one month later, but decreased in nature contact and well-being. These findings highlight the challenges of promoting regular nature contact as a mood regulation strategy. Implications and future directions are discussed.

Author Keywords: blue space, green space, nature connectedness, well-being

2020

Executive Function, Emotion Regulation, and Social Problem Solving, in Adolescence and Early Adulthood

Type:
Names:
Creator (cre): Aked, Cassandra, Thesis advisor (ths): Im-Bolter, Nancie, Degree committee member (dgc): Smith-Chant, Brenda, Degree granting institution (dgg): Trent University
Abstract:

Research to date on social problem solving typically focuses on elementary school aged children. However, adolescents and young adults may experience more novel and emotionally complex social conflicts that require different skills to navigate them successfully. Previous research has highlighted executive function (EF) and emotion regulation as possible skills that help with social problem solving. The current study examined the potential relation between EF, emotion regulation, and social problem solving. The sample consisted of 174 participants with a mean age of 19.60 years. Results showed that the shifting component of EF was associated with being able to take different perspectives when coming up with a solution for a social conflict involving a romantic partner. Additionally, emotion regulation was associate with perspective taking in the overall social problem solving process with a romantic partner. These results suggest that both EF and emotion regulation are involved in the ability to take different perspectives during a social conflict in this age range.

Author Keywords: Emotion Regulation, Executive Function, Social Problem Solving

2019