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Anomalous Self-Experiences And Aberrant Salience In Schizotypy, Victoria Martin

Dissertations, Theses, and Capstone Projects

Within this investigation, the self-disorder hypothesis of schizophrenia was assessed via an illusory perceptual paradigm. It has been proposed that alteration of basic (minimal) selfhood may underlie cognitive and perceptual disturbances in psychosis (Sass, 2014). Disturbed corporeality (i.e., anomalous experience of one’s body) is an identified component of basic self-disturbance. As it is difficult to empirically capture the spontaneous occurrence of anomalous bodily experiences as they arise, the Pinocchio Illusion (PI) has been employed to capture variations in the plasticity of bodily self-experience (specifically, body boundary plasticity) (Michael & Park, 2016). The PI paradigm provides for the sensations of arm …

The Impact Of Cannabis Use On Neuropsychological And Neural Biomarkers Of Treatment Response In Schizophrenia Spectrum Disorders, Melanie B. Thies

Dissertations, Theses, and Capstone Projects

Cannabis use among patients with schizophrenia-spectrum disorders (SSD) is at significantly greater levels than in healthy populations but the impact of cannabis on neural mechanisms of clinical improvement is poorly understood. Cognitive functioning and neural connectivity are disrupted as a result of both SSD and cannabis use, and research indicates that neuropsychological capacity and connectivity of the striatum, a region involved in salience and reward processing, may be integral to effective antipsychotic drug (AP) treatment response. Despite this overlap, no previous research has investigated the effect of cannabis on the brain functions implicated in AP treatment response. The present study …

Examining Dehumanization Of Individuals With Schizophrenia, Brianna Drake

USC Aiken Psychology Theses

Objective: Previous literature examines dehumanization of marginalized groups; though, most of this work focuses on ethnic and racial groups. Currently, there is a gap in the literature examining the extent to which people with mental illness are dehumanized. This study examined whether people with schizophrenia are dehumanized (relative to other marginalized groups, such as drug addicts). Furthermore, this research will investigate if using “person-first” language can attenuate dehumanization.

Method: Participants (n = 310) were recruited from Amazon Mechanical Turk to complete a measure of dehumanization and demeaning needs for each of the nine targets (i.e., self, close friend, lawyer, elderly, …

Stability Of Neurocognitive Abilities In Heterogeneous Subgroups Of Schizophrenia, Megan L. Becker Wright

UNLV Theses, Dissertations, Professional Papers, and Capstones

Considerable work has been devoted to characterizing the latent structure of cognition in schizophrenia (SZ) to understand important clinical outcomes associated with generalized or specific deficits but findings are limited in a number of ways. Previous work has not assessed bifactor and other complex models of cognition in SZ, which might provide a better understanding of the structure of cognitive abilities. It is also unclear whether the latent structure of cognitive abilities is similar between men and women with SZ or whether the latent structure of cognitive abilities is stable over time with repeated assessment. These limitations must be addressed …

A Life Lived With Schizophrenia: When Mother’S Love Is Kept In The Dark Exploring Maternal Communication And Attachment Organization In Families With Schizophrenia, Myrsini Stefanidou Marini

Electronic Theses and Dissertations

In recent years, research into the transgenerational transmission of attachment styles has shown that a mother’sattachment style often predicts the attachment style of her infant. Fearsome parental behavior has been found to predict disorganized attachment in infants, which is further associated with a range of mental health disturbances in adolescence. Furthermore, regular patterns of disturbed communication between mother and child have also been found to lead to ‘schizophrenic’ thinking and behavior in the child’s life. While acknowledging that genetic and other biological factors contribute to the emergence of schizophrenia, this study focused on disorganized attachment and disturbed communication between mother …

Multiple Risk Factors For Schizotypy In A Non-Clinical Population : Exploring The Continuum Of Psychosis Two Years Later, Jill Del Pozzo

Theses, Dissertations and Culminating Projects

Schizotypy is a multidimensional construct that refers to a collection of cognitive and personality traits, impairments, and experiences thought to lie on a continuum for psychosis, which place an individual at increased risk for developing schizophrenia spectrum disorders. The expression of schizotypy varies along this continuum of psychosis (i.e., from healthy, to subclinical and prodromal symptomatology, to clinical and severe psychosis) and is dependent on several biopsychosocial factors and their interactions. Accordingly, it is important identify factors that correlate with higher levels of schizotypy over time, toward ascertaining knowledge about developmental pathways of risk and resilience for psychotic disorders. To …