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Working Memory During The Menstrual Cycle: A Study Of The Role Of The Different Phases Of The Menstrual Cycle On Working Memory, Daniella Brownrigg

Brescia Psychology Undergraduate Honours Theses

This study investigated the role of the menstrual cycle phases (Follicular, Luteal and Menstruation) on working memory components (verbal and visuospatial). Eighty-eight undergraduate students attending Brescia University college completed a survey regarding: demographics, menstrual cycle information and working memory cognitive tasks. The cognitive tasks were the Corsi Block Tapping Test and a shorter version of the Hooper Visual Organization test for visuospatial working memory; and the Forward Digit Span Test and the Semantic Verbal Fluency Subset: Animals from the Barcelona Test for verbal working memory. Participants were categorized into the different menstrual phases they were experiencing. No significant differences were …

'Gave His Life For The Empire': Memory, Memorials, And Identity In The British Empire After The First World War, Bryan Mcclure

Electronic Thesis and Dissertation Repository

This dissertation examines the construction of personal memorials after the First World War across the British Empire nations of the United Kingdom, Ireland, Australia, Canada, and New Zealand, to understand how individuals sought to make their own memorial to remember their loved one killed in the conflict. In comparison to other studies on the construction of national or other community memorials, this dissertation explores how individuals accepted or rejected dominant discourses in creating their own memorials that spoke to how they remembered the war. It is based on a large database of more than 2,000 private memorials to individuals that …

At Dusk, Michelle Paterok

Electronic Thesis and Dissertation Repository

In supplement to my Master of Fine Arts thesis exhibition, this dossier is composed of an extended artist statement, photographic documentation of artwork, a transcribed interview with artist Ben Reeves, and a curriculum vitae. These components contextualize the motivation and research that inform my studio work in painting. The extended artist statement describes the personal and theoretical foundation of my Master’s thesis project—a series of paintings collectively titled At Dusk, which documents everyday interior space in order to explore the invocations of colour, light and atmosphere. The interview with Ben Reeves provides insight into his artistic practice in painting, …

Thomas Reid On Language And Mind, Alastair L.V. Crosby

Electronic Thesis and Dissertation Repository

The dissertation concerns Thomas Reid’s philosophy of language. In the first three chapters, I discuss his philosophy of language in relation to his developmental psychology. More specifically, I discuss his answers to two questions: (i) what does the ability to understand artificial linguistic signs make possible? and (ii) what makes the ability to understand artificial linguistic signs possible? The focus is on Reid’s claim that the mind’s ability to understand artificial linguistic signs makes it possible for it to acquire a number of distinct mental abilities, such as to conceive universals, to judge, and to reason. I argue this claim …

The Embroidered Tablecloth: How Locale Influences Eastern European Jewish Textile Production, Elena Solomon

Electronic Thesis and Dissertation Repository

Recent scholarship frames craft as distinct from art and as an encapsulation of cultural expression at a given moment. Building on that framework, this thesis analyzes the shifting attitudes towards the production of handmade textiles among Eastern European Jews in the US in the twentieth century, as influenced by their migration. To demonstrate the textile environment at that time, this thesis examines pre- and post-migration primary sources and autobiographical writing, including Mary Antin’s The Promised Land, supplemented with interviews of first- and second-generation immigrants to Chicago. In contrast with stereotypes about craft as historically stable, defining craft as regional …

Still, Unfolding, Ramolen Mencero Laruan

Electronic Thesis and Dissertation Repository

Together with my Master of Fine Art thesis exhibition, still, unfolding, at Zalucky Contemporary (Toronto, Ontario), this dossier constitutes the following accompanying components: a comprehensive artist statement, documented artwork, an interview with artist Erika DeFreitas, and a curriculum vitae. These components contextualize my subject-position, and outline theoretical research, motivations, and reflections that drive my work. I expand on the diasporic experience, politics of knowledge, and the autobiographical genre as they are linked methodologies in the retrieval of immigrant histories. The fusion of autobiography and fiction becomes a hopeful approach in challenging forgotten or omitted history and confronts the expectations …

Is Social Rank Correlated With Cognitive Ability In Black-Capped Chickadees?, Gloria Hyun Young Cho

Electronic Thesis and Dissertation Repository

Traditionally, dominant animals have been regarded as better competitors in all aspects of life, including cognition. However, the survival and reproductive advantages of being a dominant chickadee are surprisingly modest. It is possible that subordinate individuals compensate for the disadvantages of a lower rank with better cognitive abilities. If dominants are monopolizing prime food sources, subordinates may have developed better associative learning skills by learning to associate novel types of stimuli with food rewards. In this thesis, I asked whether dominance rank is correlated with cognitive ability in Black-capped Chickadees. I determined dominance rank in six flocks of six chickadees, …

The Role Of Histone Demethylases In Learning And Memory In The Mushroom Body Of Drosophila Melanogaster, Crystal Keung

Electronic Thesis and Dissertation Repository

Intellectual disability (ID) is a neurodevelopmental disorder associated with many epigenetic regulators and chromatin modifying enzymes like histone lysine methyltransferases (KMTs) and demethylases (KDMs). Here, I systematically investigate the role of 7 KDMs: Su(var)3-3, KDM2, Lid, CG2982, UTX, KDM4B, JHDM2, and 1 KMT: trr in the context of learning and memory using Drosophila melanogaster. Genetic knockdown of each gene in the mushroom body (MB) of flies are tested for short- and long-term memory impairment using courtship conditioning. Knockdown of 6 KDMs and trr resulted in memory loss. MB morphology was analyzed to determine potential cause of memory loss. …

Formation Of Implicit Memories From A Narrative Played During Sleep, Amanat Ludhar

Undergraduate Honors Theses

Though, it was previously thought that the sleeping brain was dormant, research suggests that participants can process salient stimuli and form implicit memories of simple stimuli (e.g. words) during sleep. Thus, the current study aimed to determine whether participants could form implicit memories of a narrative played during sleep, and what role different sleep stages played in this memory formation. Participants were played a story while taking a nap, and EEG was used to track time spent in different sleep stages. Later, participants completed an implicit memory task where they were asked to differentiate between animal and non-animal words through …

Exploring Cognitive Maps Through Sketching, Melissa M. Nantais

Electronic Thesis and Dissertation Repository

Abstract

Periodic testing has been found to improve the accuracy of participants’ cognitive maps when an onscreen map is provided, however, it is unclear whether the same results would occur without the onscreen map. The current study investigated whether drawing a map periodically while exploring the virtual environment Silcton would improve cognitive map accuracy. Participants explored Silcton and were stopped every 4 minutes to either sketch a map of Silcton, identify items seen in Silcton, or colour an unrelated picture, and a baseline group was not stopped. All groups drew a final sketch map and completed a direction estimation task. …

Sanaugavut: Art From Kinngait, Nakasuk Alariaq

Electronic Thesis and Dissertation Repository

“Sanaugavut: Art from Kinngait” explores 20^th century Inuit art from an Inuk’s perspective to highlight the work Inuit participants contributed to in the development of commercialized art production in the North. The author Nakasuk Alariaq is from Kinngait (Cape Dorset) and is the first Inuk graduate student at Western University to be offered space within the university’s formal settings to curate an Inuit art exhibition. This exhibition and thesis go hand in hand and are therefore very important to advocates of Indigenous self-representation in academia and in galleries. The exhibition “Sanaugavut: Art from Kinngait” was …

Investigating The Role Of Atrx In Glutamatergic Hippocampal Neurons, Renee Tamming

Electronic Thesis and Dissertation Repository

Mutations in ATRX, a Snf2-type chromatin remodeler, frequently lead to intellectual disability. However, the function of ATRX within the brain in cognition and synaptic transmission are incompletely understood. The aim of this study was to investigate the role of ATRX in the adult mouse brain. While complete loss of ATRX in the embryonic mouse brain results in perinatal lethality, mosaic expression of ATRX stunted growth and perturbed circulating IGF-1 levels. Mosaic expression of ATRX also impaired adult cognition, specifically recognition memory and spatial learning and memory. However, there were confounding factors that led me to a new model in …

Effect Of Atrx Inactivation On Hippocampal Synaptic Plasticity In Mice, Radu Gugustea

Electronic Thesis and Dissertation Repository

The ATRX gene encodes an ATP-dependent chromatin remodeling factor and gene mutations cause developmental defects and intellectual disability. Conditional ablation of Atrx in mouse postnatal forebrain excitatory neurons (ATRX-KO) leads to spatial learning and memory impairments. Thus, we hypothesized that hippocampal synaptic transmission and plasticity are disrupted in ATRX-KO mice. Long-term potentiation (LTP), a cellular correlate of memory, and input-output relation of paired-pulse responses were studied in urethane-anesthetized mice in vivo. Theta-burst stimulation (TBS) of stratum oriens induced robust basal dendritic LTP in CA1 of both ATRX-KO and control mice, while paired-pulse facilitation (PPF) during baseline was lower in ATRX-KO …

Watching And Working Through: Navigating Non-Being In Television Storytelling, Tiara Lalita Sukhan

Electronic Thesis and Dissertation Repository

This dissertation explores various examples of the concept of symbolic non-being within television drama. It seeks to investigate the ways and degrees to which television storytelling can represent and perform the psychoanalytic process of “working through.” The medium of television provides a unique framework for investigation as television does not just illustrate (represent) working through as something a fictional character experiences, but it also performs it structurally, through the incorporation of three medium-specific features: duration, immersion and repetition. Television represents working through on a mass scale – imagining a collective audience by addressing big political, personal and/or institutional issues that …

The Role Of H3k4 Methyltransferases In Drosophila Memory, Nicholas Raun

Electronic Thesis and Dissertation Repository

Gene transcription required for long-term memory requires the modification of histones. However, there are still many uncertainties about the identity and spatial expression of genes regulated by histone modifications during memory related processes. In this project I examined the role of Drosophila melanogaster methyltransferases Set1 and trx in courtship memory. Genetic knockdown of Set1 and trx in the mushroom body (MB) revealed that Set1 was necessary for short- and long-term memory, while trx was only required for long-term memory. Transcriptional profiling of MBs following trx-knockdown revealed expression changes in MB-enriched genes and genes involved in RNA processing. Among the …

Effect Of Bacterial Superantigens On The Magnitude And Breadth Of Influenza-Specific Cd8+ T Cell Responses, Courtney Meilleur

Electronic Thesis and Dissertation Repository

Severe cases of influenza A virus (IAV) infection are often complicated by concomitant bacterial pneumonia or sepsis. Many bacterial species are capable of producing potent immunomodulators called superantigens (SAgs), which have the potential to interfere with cell-based antiviral immune mechanisms. I asked what effects bacterial SAgs have on both the magnitude and the breadth of antiviral CD8⁺ T cell (TCD8⁺) responses. Surprisingly, administration of SAgs to mice shortly before or after vaccination with IAV increased the number of primary TCD8⁺ responding to select IAV-derived epitopes. T cell receptor staining of these SAg-augmented populations revealed expression of …

The Effects Of Perceived Predation Threat On Stress Response And Memory In Birds, Chlöe S. N. Carter

Electronic Thesis and Dissertation Repository

This study examined how perception of predator cues, across three sensory modalities, affects physiology and behaviour of songbirds. I hypothesized that the perception of predator threat would elicit physiological and behavioural responses in both acute and chronic exposure conditions. My first study examined the responses of wild-caught black-capped chickadees (Poecile atricapillus) and house sparrows (Passer domesticus), as well as lab-bred zebra finches (Taeniopygia guttata), to acute predation cue exposure by coding video recorded behaviour and corticosterone analysis. My second study examined changes in black-capped chickadees’ foraging behaviour and memory retention after chronic exposure to …

Unsettling The Homeland: Fragments Of Home And Homeland Among Iraqi Exiles In Amman, Jordan, Abdulla Majeed

Electronic Thesis and Dissertation Repository

For the past 30 years, imperial military invasions and political meddling in Iraq, and a long history of a repressive Ba’athist regime disfigured the nation, displaced Iraqis from their homeland, and unsettled their relationship to it. By examining the narratives of Iraqi exiles who have diverse migration genealogies, socioeconomic backgrounds, and political trajectories in Amman, Jordan, this thesis looks at how exile shapes how the homeland is imagined, remembered, and performed. Based on fieldwork and interviews conducted in Amman between May and September of 2017, the thesis explores: 1) Why certain narratives and elements of the past are employed, while …

The Tapestry Of Memory, Kathryn M. Lawson

Electronic Thesis and Dissertation Repository

Rationality points to the complete annihilation and end of a life when the body perishes, and yet when a loved one dies we continue to experience that person in a myriad of ways. The focus of this thesis will be a phenomenological exploration of the earthly afterlife of those we have loved and lost. By positing the subject as always intersubjective and as temporal in nature, this thesis will investigate how we continue to create and interact with the deceased upon the earth. In the introduction, this work will be placed in the context of the phenomenological tradition. The first …

Mechanisms Involved In The Assessment Of Cumulative Long-Term Familiarity Of Object Concepts: An Erp Study, Haopei Yang

Electronic Thesis and Dissertation Repository

We investigated the sensitivity of ERP components implicated in recognition memory to degree of experimentally controlled and lifetime cumulative exposures during explicit memory judgements. A parietally distributed ERP component spanning both the FN400/N400 and the LPC time windows tracked both types of judgements. This effect appears to be an LPC effect with an early onset, and differs from previously reported effects of repetition linked to implicit memory. Based on recent evidence, we interpreted it as response-related evidence accumulation processes that are in line with both single-process models and continuous dual-process models. We also observed more positive ERPs in the left …

Individual Differences In The Allocation Of Visual Attention During Navigation, Mikayla Keller

Electronic Thesis and Dissertation Repository

There are large individual differences in the ability to create an accurate mental representation (i.e., a cognitive map) of a novel environment, yet the factors underlying cognitive map accuracy remain unclear. Given the roles that landmarks and cognitive map accuracy play in successful navigation, the current study examined whether differences in the landmarks that individuals look at while navigating are related to differences in cognitive map accuracy. Participants completed a battery of spatial tests: some that assessed spatial skills prior to a navigation task, and others that tested memory for the environment following exploration of a virtual world. Results indicated …

Cerebral Lactate Metabolism And Memory: Implications For Alzheimer's Disease, Richard Andrew Harris

Electronic Thesis and Dissertation Repository

Alzheimer’s disease (AD) is a neurodegenerative disease characterized by amyloid plaques that are comprised of aggregated amyloid-beta peptides. These toxic proteins promote mitochondrial dysfunction and neuronal cell death. A shift in metabolism away from oxidative phosphorylation and toward aerobic glycolysis, with the concomitant production of lactate, affords neurons a survival advantage against amyloid-beta toxicity. Recent evidence now suggests that aerobic glycolysis in the brain plays a critical role in supporting synaptic plasticity, learning, and memory. However, the role of aerobic glycolysis and lactate metabolism in AD-mediated cognitive decline is unknown. My objective was to test the hypotheses that aerobic glycolysis …

Image Memory For Hyperpalatable Foods In University Aged Females, Leila M. Mackay

Brescia Psychology Undergraduate Honours Theses

Hyperpalatable foods are high in sugar and/or fat and highly processed. These foods increase dopamine in the brain similar to other rewards, such as drugs of abuse, producing pleasure and an enhanced drive to consume them. Undergraduate students (n = 44) completed an explicit memory task where they were asked if they recalled various types of food (high sugar, high fat, sugar+fat, fruits, vegetables and breads) and non-food images. Questionnaires evaluating eating patterns were also completed. It was hypothesized that hyperpalatable foods would be recalled better and faster than less-palatable foods or non-food images. The study found that hyperpalatable …

Does Sleep Enhance The Consolidation Of Implicitly Learned Visuo-Motor Sequence Learning?, Jeremy Viczko

Electronic Thesis and Dissertation Repository

Sleep has been shown to facilitate the consolidation (i.e., enhancement) of simple explicit (i.e., conscious) motor sequence learning (MSL). It remains unclear the degree to which this applies to implicit (i.e., unconscious) MSL. Employing reaction time and response generation tasks, we investigated the extent to which sleep is involved in consolidating implicit MSL, specifically whether the motor or the spatial cognitive representations of a learned sequence are enhanced by sleep, and whether these changes support the development of explicit sequence knowledge across sleep but not wake. Our results indicate that spatial and motor representations can be behaviourally dissociated for implicit …

Dancing In The Dark: Sleep-Dependent Motor Skill Memory Consolidation And Periodic Limb Movement Disorder, Valya Sergeeva

Electronic Thesis and Dissertation Repository

Periodic Limb Movement Disorder (PLMD) is a neurodegenerative disease characterized by dysfunction of the striatum and brief, repetitive limb movements during sleep. PLMD can severely disrupt non-rapid eye movement (NREM) sleep. Motor skills learning and memory consolidation are dependent on striatal activation, the latter enhanced by NREM sleep. Therefore, we investigated whether individuals with PLMD had learning and sleep-related memory deficits, and whether this putative deficit was related to sleep quality or symptom severity. 14 adults with a PLM index >15/hr underwent two nights (baseline, training) of polysomnographic recording. 15 age-matched healthy controls underwent three nights (baseline, undisturbed training and …

Truth Functions And Memory In English Language Learners, Eric Smiley Mr.

Electronic Thesis and Dissertation Repository

English Language Learners (ELLs) are consistently found to overuse, misunderstand, and misuse connectives in the English language (Bolton et al., 2002; Chen, 2006; Hinkel, 2002; Ozono & Ito, 2003; Zhang, 2000) and current research has not investigated whether this misunderstanding effects the memory of claims. The primary goal of the present study was to examine whether knowledge of truth-functional connectives is related to conjunctive bias in ELL students. Using a within-subjects design, the effects of instruction in truth-functional connectives on conjunctive bias in nine ELL students were investigated. Repeated measures analyses of variance (ANOVA) revealed an elimination of conjunctive bias …

On Coming And Going, Quintin Teszeri

Electronic Thesis and Dissertation Repository

This dossier and the accompanying exhibition On Coming and Going (presented at the Artlab Gallery in January 2017) constitute my MFA in Visual Arts thesis. The first chapter of this dossier is a Comprehensive Artist Statement in which I reflect on how my art, thinking, and life engage different meanings of coming and going in different ways. The statement approaches a deeply subjective and aggregate philosophy, or perhaps an attitude, or perhaps most appropriately if also most cliché, a way of being, in the face of relentless transience. The second chapter is a review of Michel de Broin’s 2016 Castles …

Praesentia Sublimis: Studies In The Differend, Dylan T. Vaughan

Electronic Thesis and Dissertation Repository

Interrogating the notion of the differend, taken from Jean-Franҫois Lyotard’s book of the same name, in which a wrong occurs along with the impossibility of its representation as a wrong, this thesis attempts to rearticulate the relationship between the distant and heterogeneous theories dealing with a supposedly common subject matter: namely, the sublime. The sublime as it is taken up in the rhetorical pedagogy of Longinus, the transcendental aesthetic of Immanuel Kant, and the postmodern theory of Jean-Franҫois Lyotard refuses to yield a shared dimension that could bind together these major moments of thought. There are sublimes, it seems, …

Category-Specific Item Recognition And The Medial Temporal Lobe, Christopher B. Martin

Electronic Thesis and Dissertation Repository

Much neuropsychological and neuroimaging research has been focused on the contributions of different medial temporal lobe (MTL) structures to recognition memory. The majority of these studies have linked perirhinal cortex (PrC) to item recognition, whereas the hippocampus and parahippocampal cortex (PhC) have primarily been associated with the recollection of contextual detail pertaining to a specific prior stimulus encounter. Here, I report results from three fMRI studies that examined the neural correlates of item recognition with a specific focus on the relationship between such signals and category-specific effects in the MTL. In Chapter 2, I reveal that category-specific representations in both …

The Ha-Ha Holocaust: Exploring Levity Amidst The Ruins And Beyond In Testimony, Literature And Film, Aviva Atlani

Electronic Thesis and Dissertation Repository

ABSTRACT

Jewish humour sheds a crude light on the social, political, and historical realities of the Holocaust. Paradoxically, contentiously, doses of levity during this period were very much a reality, and even a psychological necessity. The purpose of my thesis is to explore the historical, social, and political ramifications of such laughter provoking manifestations. In doing so, the nuances are highlighted which are found within the laughter of the ghettos, the transit camps, and the concentration camps. Furthermore, some of these jokes, and their subsequent variations, reappear within the discourse of children of survivors. The dissertation explores how some of …