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Greater Benefits Of Multisensory Integration During Complex Sensorimotor Transformations., Verena N Buchholz, Samanthi C Goonetilleke, W Pieter Medendorp, Brian D Corneil

Brain and Mind Institute Researchers' Publications

Multisensory integration enables rapid and accurate behavior. To orient in space, sensory information registered initially in different reference frames has to be integrated with the current postural information to produce an appropriate motor response. In some postures, multisensory integration requires convergence of sensory evidence across hemispheres, which would presumably lessen or hinder integration. Here, we examined orienting gaze shifts in humans to visual, tactile, or visuotactile stimuli when the hands were either in a default uncrossed posture or a crossed posture requiring convergence across hemispheres. Surprisingly, we observed the greatest benefits of multisensory integration in the crossed posture, as indexed …

Resting-State Connectivity Identifies Distinct Functional Networks In Macaque Cingulate Cortex., R Matthew Hutchison, Thilo Womelsdorf, Joseph S Gati, L Stan Leung, Ravi S Menon, Stefan Everling

Brain and Mind Institute Researchers' Publications

Subregions of the cingulate cortex represent prominent intersections in the structural networks of the primate brain. The relevance of the cingulate to the structure and dynamics of large-scale networks ultimately requires a link to functional connectivity. Here, we map fine-grained functional connectivity across the complete extent of the macaque (Macaca fascicularis) cingulate cortex and delineate subdivisions pertaining to distinct identifiable networks. In particular, we identified 4 primary networks representing the functional spectrum of the cingulate: somatomotor, attention-orienting, executive, and limbic. The cingulate nodes of these networks originated from separable subfields along the rostral-to-caudal axis and were characterized by positive and …

Are Offence-Focused Correctional Rehabilitation Programs Affecting Inmates' Executive Cognitive Functions?, Erin H. Ross

Electronic Thesis and Dissertation Repository

There is a vast amount of data linking antisocial behaviours and deficits in executive cognitive functions (ECFs); however, there is a dearth of empirical research to address whether ECF abilities are being affected by correctional rehabilitation programming. Using a pre/post design, ECF performance of male inmates who completed a violence, family violence, or substance abuse rehabilitation program, was compared to ECFs of controls. Results indicated that across the six measures of ECF, including behavioural and self-report measures, only 2 of 10 variables showed a change across groups over time. Therefore, strong support for the notion that correctional programming is improving …

Individual Differences In Temperament And Cognitive Biases In Middle Childhood: Vulnerability To Internalizing Psychopathology, Patricia L. Jordan

Electronic Thesis and Dissertation Repository

A multi-trait multi-method study was conducted exploring associations between individual differences in child temperament and cognitive vulnerability for depression and anxiety. Two-hundred and five 7-year-old children and their parents participated. Low positive emotionality and high negative emotionality predicted a depressogenic attributional style as well as attentional biases for positive and sad stimuli. Individual differences in child fearfulness were also associated with attentional biases to threat-related information. Associations between child cognitive vulnerability and parental history of depression and anxiety were also explored, as well as associations between child internalizing symptoms and (1) child temperament and (2) cognitive vulnerability. Paternal, but not …

Cognitive, Emotional, And Behavioural Correlates In Children With Psychopathic Traits, Vanessa Leanne Pedden

Electronic Thesis and Dissertation Repository

Psychopathy is a developmental disorder characterized by deficits in emotional, interpersonal, and behavioural domains. Adult psychopaths commit a disproportionate amount of violent crime and are at a heightened risk for recidivism. Research suggests that children with psychopathic traits present with deficits similar to their adult counterparts on measures of passive avoidance learning and emotional processing. There is also evidence to suggest that these children engage in differential forms of aggression. In addition, research suggests that adult psychopathy develops early in life. The purpose of this dissertation was to examine cognitive, emotional and behavioural characteristics in children with psychopathic traits. The …

Self-Presentation And Social Physique Anxiety In Injury Rehabilitation Settings, Molly Driediger

Electronic Thesis and Dissertation Repository

The objective of this dissertation was to provide an initial description of self-presentation in injury rehabilitation (i.e., physiotherapy). To accomplish this, one qualitative and two quantitative studies were conducted. Study 1 determined whether self-presentational concerns were present in this setting. Female (n = 134) and male (n = 54) undergraduate students with a mean age of 20.64 years (SD = 1.99) completed measures of Social Physique Anxiety (SPA; Hart et al., 1989), self-presentational concerns, and preferences for features of the social and physical physiotherapy environment. An examination of the relationships between these variables revealed that self-presentation exists …

Context Is Everything: Facilitating Fit When New Products Are Ambiguous, Theodore J. Noseworthy

Electronic Thesis and Dissertation Repository

Researchers have long believed that consumers adjust their functional expectations in accordance with a product’s physical appearance. Recently this belief has come under fire. Product categories are converging rapidly. Take modern cell phones; the physical appearance of the iPhone is only tangentially related to the breadth of its functionality. Examples like this have sparked a wealth of interest in exploring how consumers generate inferences for products with functions that span multiple categories. One important finding is that consumers tend to generate functional inferences based mainly on the knowledge of a single category. This suggests that new hybrid products are not …

The Role Of Valence In Construct Dimensionality Debates, Chun Seng Kam

Electronic Thesis and Dissertation Repository

There continues to be debate about the dimensionality of important psychological constructs (e.g., anxiety; job satisfaction). The standard procedures for determining whether a construct is unidimensional or two-dimensional have been to (a) conduct factor analyses and (b) test for differences in the nomological network of correlations with other variables. I argue, and demonstrate empirically, that these approaches can sometimes mislead researchers to draw incorrect conclusions. In Study 1, I examined how item valence (i.e., favorability of item content) can affect factor analyses and nomological network analyses with two separate samples of undergraduate students. Results consistently showed that item valence can …

Inclusive Fitness, Reciprocal Altruism And Emotion: Testing A Social-Functional Model Of Anger And Gratitude Across Kin And Non-Kin Relationships, Harris Rubin

Electronic Thesis and Dissertation Repository

Guided by the theories of inclusive fitness (Hamilton, 1964) and reciprocal altruism (Trivers, 1971), two studies tested hypotheses related to the notion that emotions are part of an evolved psychological system that functions, in part, to regulate social exchange. Emotional experience and exchange behaviors were predicted to vary based on both the structure of the situation and the type of relationship one has with a partner. Due to an absence of inclusive fitness effects, interaction with non-kin (compared with kin) exchange partners was expected to trigger more intense emotional responses. Study 1 found that, as expected, unfair offers led to …

Deliberate Self-Persuasion And Forgiveness, Irene Cheung

Electronic Thesis and Dissertation Repository

After being hurt by a romantic partner, individuals may feel ambivalent towards their partner. Specifically, individuals’ feelings about their partner after a transgression (current attitudes) may be discrepant from how they want to feel about their partner (desired attitudes). When individuals are aware of such a discrepancy, they may be motivated to resolve it by using mental strategies (e.g., focusing on the positive characteristics of the partner or focusing on events that are not related to the transgression) that bring their current attitudes more in line with their desired attitudes, a process that has been labeled deliberate self-persuasion (Maio & …

Parental Relocation: Factors Present In Judges’ Decisions, Emily A. Reddick

Electronic Thesis and Dissertation Repository

Abstract

The present study examined multiple factors that may account for Canadian judges’ decisions in relocation cases where one parent contests a move away by the other parent and children after separation. The decisions were collected from a stratified random sample of judgments consisting of 50 cases where the relocation was approved and 50 where it was denied. The cases reviewed took place between 1996 and 1999 and followed the highly criticized Supreme Court decision in Gordon v. Goertz.

Cases were analyzed to determine the extent to which child, parent, judicial, move, and legal factors predicted court outcomes. All identified …

Encoding Of Sensory Prediction Errors In The Human Cerebellum., John Schlerf, Richard B Ivry, Jörn Diedrichsen

Brain and Mind Institute Researchers' Publications

A central tenet of motor neuroscience is that the cerebellum learns from sensory prediction errors. Surprisingly, neuroimaging studies have not revealed definitive signatures of error processing in the cerebellum. Furthermore, neurophysiologic studies suggest an asymmetry, such that the cerebellum may encode errors arising from unexpected sensory events, but not errors reflecting the omission of expected stimuli. We conducted an imaging study to compare the cerebellar response to these two types of errors. Participants made fast out-and-back reaching movements, aiming either for an object that delivered a force pulse if intersected or for a gap between two objects, either of which …

Profiles Of Children And Youth Displaying Inappropriate Sexual Behaviours: Relevance For Assessment For Sexual Offending Patterns, Julia M. L. Rick

Electronic Thesis and Dissertation Repository

The purpose of this study was to evaluate a specialized assessment program with a sample of children/youth (n = 80) who were seeking intervention for inappropriate sexual behaviour (ISB) at a tertiary mental health facility in London, Ontario. The primary goal was to identify predictive factors in participants with offending behaviour—both sexual and non-sexual—in order to prioritize treatment needs and to address strategies for reducing the risk of sexual offending against others. As participant ages increased by 1 year, their odds of sexually offending someone increased by approximately 27%. Also, males were found six times more likely to sexually …

Hearing Women’S Voices: Understanding Women's Stories Of Violence From The Perspective Of Strength, Kayla M. Janes

Electronic Thesis and Dissertation Repository

The purpose of this study was to understand women's experiences of violence from the perspective of strength. Women who had experienced woman abuse participated, identifying common themes that emerged relating to their strengths and resilience that helped them survive their traumatic experiences, as well as their posttraumatic growth. Interviews were conducted with women who were involved in an adult education program for women who had experienced woman abuse. All of the women in this study were suffering distress and mental health concerns related to their experiences of violence; however all of them showed resilience and posttraumatic growth in areas of …

Coping Experiences Of 911 Communication Workers, Sarah G. Horsford

Electronic Thesis and Dissertation Repository

This research explored coping experiences among emergency communications personnel. Ten individuals from a communication centre of a policing unit in Ontario participated in semi-structured interviews. Seven themes emerged to form the content analysis including Meaning-Focused Coping, Emotion-Focused Coping, Problem-Focused Coping, Reappraisal, Comm Centre Culture, Occupational Dimensions and Organizational Structure. Themes were compared to workplace stress, coping and burnout literature in addition to literature regarding organizational interventions and emergency responders. Implications were presented for counselors working with communications personnel and emergency responders.

Cultural Connectedness As Personal Wellness In First Nations Youth, Ben Davis

Electronic Thesis and Dissertation Repository

Adolescent development involves changes in self-concept and identification with different groups or cultural norms. Many First Nations adolescents have additional difficulties due to disconnections with family, schooling and cultural background, as a legacy of colonisation and social marginalisation. The present study used data from the First Nations Regional Longitudinal Health Survey, Youth, Phase 2 to test the hypothesis that connectedness to social and cultural factors would predict lower rates of reported depression in First Nations youth, using a logistic regression analysis. The findings indicated that connectedness to family and school, as well as having a sense of control over one's …

The Aftermath Of Intergenerational Trauma: Substance Use Risk And Resiliency, Laurel E. Pickel

Electronic Thesis and Dissertation Repository

The present study explored resilience factors to substance use within Canada’s First Nations adults. This was explored through a lens of historical trauma experienced as a group through the Residential School establishments. Secondary data from phase II (2008/10) of the Regional Health Survey were analyzed in coming to determine the effects of resiliency factors in the lives of abstainers/low substance users, moderate users and heavy users. Analysis of variance tests revealed some significant differences in experience with resilience factors in the lives of abstainers/low users versus heavy users; no significant observations were had for the moderate group. Logistic regression analysis …

Motivation In Goal Orientation And Motivational Climate In Elite Wheelchair Tennis Players, Laurence M. Zalmanowitz

Electronic Thesis and Dissertation Repository

This research explored motivation in relation to goal orientation and motivational climate among elite wheelchair tennis players in Canada who were asked to recall their experiences from early development to the highest levels of competition. Semi-structured interviews were conducted with three Canadian wheelchair tennis players via Skype. Each represented Canada in international competition during their career. An ethnographic collective case study method was followed. All interviews were transcribed and analyzed by the researcher. Four themes emerged from the data, including involvement, process, impact/support of others and measures of success. Results were compared with existing research. Similarities and differences were discussed. …

Intergroup Romance And The Bicultural Identities Of Second Generation Asian Canadians, Richard N. Lalonde

Migration and Ethnic Relations Colloquium Series

No abstract provided.

The Relative Influences Of Knowledge, Beliefs And Preferences On Adherence To Asthma Medication, Naomi J. Gryfe Saperia

Electronic Thesis and Dissertation Repository

Purpose: Patients’ decisions about whether or not to adhere to their prescribed regimens are shaped not only by their knowledge and beliefs about their condition and its treatment options, but also by what they value in these domains. This study represents an integration of theory and methods from nursing/public health, psychology and economics to explore the additive effects of knowledge, beliefs and preferences on adherence to preventer medication in a sample of patients with asthma. It was hypothesized that knowledge, beliefs and preferences pertaining to long term outcomes would independently predict improved adherence. Method: 140 patients with asthma were asked …

Psychological Contracts In The Workplace: A Mixed Methods Design Project, Kate J. Mcinnis

Electronic Thesis and Dissertation Repository

Employee perceptions of psychological contracts were explored in a mixed methods design project. Although psychological contract research has been popular since its inception over 50 years ago, the field makes a number of assumptions about how employees truly experience psychological contracts (Conway & Briner, 2009). The primary goal of the present research was to identify how psychological contracts should be measured and theorized to reflect the natural experiences and language of employees. In Study 1, I examined a number of the theory’s assumptions by asking employees in interviews about their psychological contract experiences. A descriptive phenomenological approach allowed me to …

Investigating The Necessary Components Of A Sarcastic Context, John D. Campbell

Electronic Thesis and Dissertation Repository

This research is designed to investigate the contextual components utilized to convey sarcastic verbal irony, testing whether theoretical components deemed as necessary for creating a sense of irony are, in fact, necessary. A novel task was employed: Given a set of statements that out-of-context were not rated as sarcastic, participants were instructed to either generate discourse context that would make the statements sarcastic or meaningful (without further specification). In a series of studies these generated contexts were shown to differ from one another along the dimensions presumed as necessary (failed expectation, pragmatic insincerity, negative tension and presence of a victim) …

Preventing Mental Distress In The Military, Charles Nelson, Kate St. Cyr, Bradley Corbett, Elisa Hurley, Shannon Gifford, Jon D. Elhaid, J. Donald Richardson

RDC@Western Research Highlights

No abstract provided.

Distinct Patterns Of Functional And Effective Connectivity Between Perirhinal Cortex And Other Cortical Regions In Recognition Memory And Perceptual Discrimination., Edward B O'Neil, Andrea B Protzner, Cornelia Mccormick, D Adam Mclean, Jordan Poppenk, Anthony D Cate, Stefan Köhler

Brain and Mind Institute Researchers' Publications

Traditionally, the medial temporal lobe (MTL) is thought to be dedicated to declarative memory. Recent evidence challenges this view, suggesting that perirhinal cortex (PrC), which interfaces the MTL with the ventral visual pathway, supports highly integrated object representations in recognition memory and perceptual discrimination. Even with comparable representational demands, perceptual and memory tasks differ in numerous task demands and the subjective experience they evoke. Here, we tested whether such differences are reflected in distinct patterns of connectivity between PrC and other cortical regions, including differential involvement of prefrontal control processes. We examined functional magnetic resonance imaging data for closely matched …

Discriminating Famous From Fictional Names Based On Lifetime Experience: Evidence In Support Of A Signal-Detection Model Based On Finite Mixture Distributions., Ben Bowles, Iain M Harlow, Melissa M Meeking, Stefan Köhler

Brain and Mind Institute Researchers' Publications

It is widely accepted that signal-detection mechanisms contribute to item-recognition memory decisions that involve discriminations between targets and lures based on a controlled laboratory study episode. Here, the authors employed mathematical modeling of receiver operating characteristics (ROC) to determine whether and how a signal-detection mechanism contributes to discriminations between moderately famous and fictional names based on lifetime experience. Unique to fame judgments is a lack of control over participants' previous exposure to the stimuli deemed "targets" by the experimenter; specifically, if they pertain to moderately famous individuals, participants may have had no prior exposure to a substantial proportion of the …

Semantic And Associative Relations In Adolescents And Young Adults: Examining A Tenuous Dichotomy, Ken Mcrae, Saman Khalkhali, Mary Hare

Psychology Publications

The constructs of semantic and associative relatedness have played a prominent role in research on semantic memory because researchers have historically drawn on the distinction between these two types of relations when formulating theories, creating experimental conditions, and explaining empirical results. We argue that the binary distinction between semantics and association is rooted in a fundamental problem in how the two are defined and contrasted. Whereas semantic relatedness has typically been limited to category coordinates, associative relatedness has most often been operationalized using the word association task. We show that meaningful semantic relations between words/concepts certainly extend beyond category coordinates, …

Core Beliefs, Self-Perception, And Cognitive Organization In Depressed Adolescents, David J. A. Dozois, Julie A. Eichstedt, Kerry A. Collins, Elizabeth Pheonix, Kimberley Harris

Psychology Publications

The relationships between cognitive products (e.g., self-perception) and cognitive structure (or organization) in clinically depressed adolescents and nonpsychiatric controls (average age = 14.68) were examined. Adolescents with major depressive disorder showed significantly higher scores than did controls on the Young Schema Questionnaire domains of Disconnection, Impaired Autonomy, and Impaired Limits. These individuals also demonstrated poorer self-concept than controls on scholastic abilities, social acceptance, athletic competence, physical appearance, job competence, behavioral conduct, and global self-worth, as well as perceptions of limited social networks. The organization of self-referent adjectives was more tightly interconnected for negative content and less interconnected for positive content …

Cognitive Organization, Perceptions Of Parenting And Depression Symptoms In Early Adolescence, M. N. Lumley, David J. A. Dozois, K. H. Hennig, A. Marsh

Psychology Publications

Despite its strong relation to depression and theorized development across childhood and adolescence, cognitive schema organization has not been explored in early adolescence, a sensitive developmental period for first depression onset. Schema organization is theorized to derive from childhood cognitive internalizations of caregiving relationships, such as critical parenting experiences (e.g., Young et al. in Schema therapy: a practitioner’s guide. Guilford Press, New York, 2003). Thus, the current investigation considers the organization of positive and negative schemas with youth’s perceptions of parental warmth and psychological control and self-reported emotional functioning. Participants were 198 boys and girls aged 9–14 years who completed …