Browsing Graduate School - MU Theses and Dissertations (MU) by Thesis Advisor "Kerns, John Gerald, 1971-"
Now showing items 1-15 of 15
-
Anhedonia and deficits in positive emotional experience in individuals with genetic liability for schizophrenia
(University of Missouri--Columbia, 2013)There is growing evidence that anhedonia--the extent to which an individual reports pleasure or interest in social and physical stimuli--is important to the pathophysiology of schizophrenia. At the same time, some research ... -
Differential effects of negative and positive affect on context processing
(University of Missouri--Columbia, 2007)Context processing is thought to be a central component of cognitive control involved in maintaining goals. Context processing impairments have been implicated in psychopathology, with suggestions that the interaction ... -
Differentiating psychosis risk and mania risk scales and their associations with spontaneous eye blink rate
(University of Missouri--Columbia, 2017)Psychosis risk and mania risk scales are strongly correlated, and both psychosis and mania are linked to alterations in striatal dopamine. However, previous research has not examined whether measures of psychosis and mania ... -
Does ego threat increase paranoia?
(University of Missouri--Columbia, 2007)The goal of the current research was to test whether an ego threat increases paranoia, whether the increase in paranoia was mediated by state self-esteem, and whether the increase in paranoia was moderated by the personality ... -
Dopamine and emotion processing in schizotypal anhedonia
(University of Missouri--Columbia, 2009)Three studies examined emotion processing and dopamine regulation in anhedonia. In Study 1, in multiple assessments of emotional experience (e.g., naturalistic and lab contexts and social and nonsocial situations), people ... -
The effects of dopamine and salience manipulations on magical thinking
(University of Missouri--Columbia, 2012)Although delusional and magical thinking is associated with both increased dopamine and aberrant salience, it is unknown whether dopamine manipulations cause increased magical thinking on non-clinical measures or whether ... -
Engagement of cognitive control and down-regulation of negative affect
(University of Missouri--Columbia, 2009)Cognitive strategies can be used to regulate emotion. For example, thinking about the specific details of an emotional situation (i.e., specific thinking strategy) decreases negative affect (Philippot et al., 2006). However, ... -
The influence of positive mood and extraversion on different aspects of cognitive control
(University of Missouri--Columbia, 2009)[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] There is some evidence that positive mood might influence cognitive control and that extraverts might perform better than introverts when experiencing ... -
An investigation of automatic affective processing : behavioral correlates in schizophrenia and neural correlates in healthy adults
(University of Missouri--Columbia, 2013)[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] An important mechanism in emotional functioning is automatic affective processing. In Study 1, people with schizophrenia (n = 48) and a non-psychiatric ... -
Psychosis risk is associated with decreased white matter integrity in corticostriatal tracts
(University of Missouri--Columbia, 2018)Psychosis is associated with increased striatal dopamine and it is thought that altered connectivity between the striatum and the cortex could contribute to psychosis. In particular, there is theory and research linking ... -
Speech symptoms in Schizophrenia and relationships with working memory, goal maintenance, and processing speed
(University of Missouri--Columbia, 2015)People with schizophrenia exhibit wide ranging cognitive deficits, including slower processing speed (i.e., speed of executing task components). Speech symptoms, such as disorganized speech and alogia, have been associated ... -
Striatal functional activation and psychosis risk
(University of Missouri--Columbia, 2017)[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] The striatum is involved in learning from feedback. Psychosis is strongly related to increased striatal dopamine. The goal of the current research is ... -
A transdiagnostic investigation of amygdala-vmPFC resting state functional connectivity and emotional distress in daily lives
(University of Missouri--Columbia, 2018)Mood disorders, anxiety disorders and borderline personality disorder overlap in symptom criteria, are highly comorbid with one another, and group together in factor models of psychopathology (Kotov et al., 2011). These ... -
Understanding delusions : the role of aberrant salience and self-relevant information processing
(University of Missouri--Columbia, 2012)The current dissertation contains six studies that examine the roles of aberrant salience and self-relevant information processing in the development and maintenance of psychotic and psychotic-like experiences. Aberrant ... -
Understanding the relationship between goal maintenance and disorganized speech
(University of Missouri--Columbia, 2012)Disorganized speech in people with schizophrenia is associated with cognitive control deficits, but the specific nature of the relationship remains unclear. The current research examined whether one specific aspect of ...