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  Partner: UNT Libraries
 Department: Department of Psychology
 Degree Level: Doctoral
 Collection: UNT Theses and Dissertations
The Assessment of Cognitive Functioning among Patients with Unilateral Visual Neglect: Effects of Field of Presentation and Cueing

The Assessment of Cognitive Functioning among Patients with Unilateral Visual Neglect: Effects of Field of Presentation and Cueing

Date: August 1992
Creator: Soukup, Vicki Marlene
Description: Prior evidence has shown a reduction of neglect on line bisection tasks as a function of altered hemispace presentation and left cueing. The present study was conducted to examine the effect of these factors in reducing symptoms of neglect on measures of general cognitive functioning. To examine proposed changes, revised versions of the Raven's Coloured Progressive Matrices and the Memory-for-Designs (MFD) Test were constructed by placing the target stimuli in the right hemifield. Two experimental presentations, a right hemispace condition and a right hemispace plus left cue prompt condition, were compared to the standard presentation format. The primary hypotheses predicted that RBD neglect patients would reveal enhanced performance on the criterion measures as a result of these manipulations. Significant correlations were predicted between the neglect measures and between the two scoring systems for the MFD. The sample was comprised of 54 hospitalized patients, assigned to either a RBD neglect group (N = 18), a RBD nonneglect group (N = 18) , or an orthopedic control group (N = 18) . Both RBD groups were administered the Mini Inventory of Right Brain Injury, to document the presence and severity of right brain injury. Presence of neglect was assessed via the Schenkenberg ...
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The Assessment of Cognitive Functioning of Persons with Schizophrenia: Identification of Neuropsychological Markers

The Assessment of Cognitive Functioning of Persons with Schizophrenia: Identification of Neuropsychological Markers

Date: December 1995
Creator: Hall, Janice Anne Crawford
Description: The present study was conducted to clarify and expand knowledge of cognitive functioning in chronic schizophrenia patients (N=21) as compared to a bipolar group (N=20) and a normal group (N=20).
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Assessment of Cognitive Performance in Mixed Martial Arts Athletes

Assessment of Cognitive Performance in Mixed Martial Arts Athletes

Date: August 2014
Creator: Heath, Christopher J.
Description: Incidents and awareness of sports-related concussion have grown in recent years, attracting attention in both the academic and popular press. These concussions can lead to the rapid onset of neurological dysfunctions, as well as a variety of subjective symptoms. Although concussive sequelae are typically considered transient, debate remains about the persistent effects of repeated traumatic contact during sport participation. Although research has examined the complications of head trauma found in traditionally popular sports (e.g., football, soccer, boxing), little research has focused on the growing sport of mixed-martial-arts (MMA). Research specifically pertaining to MMA is in nascent stages, but to-date studies suggest that concussive injuries for this sport are prevalent and the training regimens of these athletes may place them at a high risk for concussive or subconcussive head traumas—as well as the accompanying neurological difficulties. The current study is the first to assess cognitive profiles of MMA athletes using an objective neuropsychological assessment instrument. Among 56 athletes (28 MMA athletes and 28 athletes not exposed to head traumas), no neuropsychological differences were found between groups of athletes. Additionally, no aspects of MMA training regimen shared a reliable relationship with neuropsychological performance or subjective concussive symptoms. This suggests non-professional participation in ...
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Assessment of Feigning with the Trauma Symptom Inventory: Development and Validation of new Validity Scales with Severely Traumatized Patients

Assessment of Feigning with the Trauma Symptom Inventory: Development and Validation of new Validity Scales with Severely Traumatized Patients

Date: May 2011
Creator: Payne, Joshua W.
Description: Currently, only the TSI assesses complex traumatic reactions and patient response styles. However, its feigning scale, ATR, uses a flawed detection strategy and is potentially confounded by experiences of complex PTSD. As a consequence, clinicians using the TSI to evaluate severely traumatized patients have no useful method for discriminating genuine and feigned responding. Several detection strategies have demonstrated utility within evaluations of feigned trauma including the assessment of rare symptoms, symptom combinations, symptom selectivity, and symptom severity. The current study created scales on the TSI according to these strategies using a development sample of 107 severely traumatized patients. Validation of all TSI feigning scales was then performed with a second independent sample of 71 severely traumatized patients using a mixed simulation design. Results found support for each scale's convergent validity with SIRS primary scales (M rs = .52) and discriminant validity with measures of defensiveness on the SIRS (M rs = -.07) and TSI (M rs = -.19). Each scale also produced expectedly mild to moderate relationships with SADS-C clinical scales (M rs = .32) and the SCID-IV PTSD module (M rs = -.02). Support for their criterion validity was only moderate (M ds = .69) when comparing the scores ...
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Assessment of Malingering in a Jail Referral Population : Screening and Comprehensive Evaluation

Assessment of Malingering in a Jail Referral Population : Screening and Comprehensive Evaluation

Date: August 1997
Creator: Ustad, Karen L. (Karen Lee)
Description: Psychological assessment of mentally disordered offenders requires a systematic consideration of response styles, including malingering and defensiveness. Important components of these evaluations are standardized diagnostic interviews. However, the ability of offenders to feign mental disorders on such measures to achieve such external incentives as treatment, placement on safer units, or possible release from jail remains uninvestigated. With a known-groups comparison with the data from the Structured Interview of Reported Symptoms as a criterion, 24 suspected malingerers were compared to 64 genuine patients on the Schedule of Affective Disorders and Schizophrenia (SADS), the abbreviated SADS-C, the Suicide Probability Scale, and the Referral Decision Scale.
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Assessment of the Effects of Interpersonal Openness and Coping Resources on the Psychological Sequelae of Traumatic Victimization

Assessment of the Effects of Interpersonal Openness and Coping Resources on the Psychological Sequelae of Traumatic Victimization

Date: December 2000
Creator: Sedillo, Diane Marie
Description: The present study tested a model addressing whether interpersonal Openness and interpersonal and intrapersonal Coping Resources mediated the relationship between interpersonal Victimization and the Psychological Symptoms women experience as a result of these traumas. Victimization indicators (physical violence, sexual assault, psychological abuse, and revictimization), Coping indicators (optimism, self-esteem, private self-consciousness, social network and therapy), Openness indicators (self-silencing, communal orientation, trust, self-monitoring, and network orientation), and Psychological Symptoms indicators (global distress, dissociation, and suicidal ideation) were examined separately for African American (n = 245), Euro-American (n = 185), and Mexican American (n = 202) women. Structural Equation Modeling revealed that for African American and Euro-American women, Openness partially mediated the victimization-distress relationship. The model for Mexican Americans was the most complex with Openness and intrapersonal Coping fully mediating the psychological effects of victimization. Approximately 50% of the variance in psychological symptoms resulting from victimization was predicted by this model for African American and Euro-American women; over 80% of the variance was predicted for Mexican Americans. Thus, the importance of Openness to relationships in alleviating the psychological sequelae following interpersonal victimization was underscored by the results. Similarities and differences between these models are discussed. Implications of the results for future research and ...
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Association Between Cognition and Depression: A Cross-Sectional and Longitudinal Study of Individuals with Learning Disabilities.

Association Between Cognition and Depression: A Cross-Sectional and Longitudinal Study of Individuals with Learning Disabilities.

Date: August 2003
Creator: Schraufnagel, Caitlin D.
Description: Over the past twenty years the number of children identified with learning disabilities has risen drastically. In addition, 26 - 40% of these children also experience depression. While cognitive functioning has been demonstrated to be associated with depression, it is unclear whether the mood, vegetative, or cognitive symptoms of depression predict particular cognitive processes and vice versa. The purpose of this study was to determine which particular cognitive processes were associated with specific depressive symptoms and depression as a whole. Structural equation modeling (SEM) was conducted to test a model which examined how three cognitive processing factors (verbal & visual reasoning, and attention/working memory) were associated with three depressive symptom factors (disturbances in mood, vegetative, and cognitive functioning). The data for SEM came from a large data set of children with learning disabilities (n=227). Model fit results supported the proposed model, and a significant association was found between the attention/working memory factor and the depression symptom factor reflecting disturbances in cognitive functioning. Less robust relationships were observed between verbal reasoning and cognitive depressive symptoms and an approach toward the conventional level of significance was noted between visual reasoning and cognitive depressive symptoms. Using a sub-sample of original participants who were ...
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Association Between Folate, Vitamin B12 and Cognitive Performance in Demented Elderly.

Association Between Folate, Vitamin B12 and Cognitive Performance in Demented Elderly.

Date: August 2008
Creator: Serova, Svetlana
Description: Dementia is prevalent among elderly people. As the world population ages, it is projected that the number of people affected by dementia may triple in the next 50 years. Over the last two decades, research has focused on identifying potentially modifiable risk factors in development and progression of dementia, such as vitamin B12 and folate. Results concerning the effects of low folate and vitamin B12 on cognitive performance are mixed. The main objective of the present study was to investigate the effects of vitamin deficiency on cognitive functioning in a clinical sample of elderly individuals with cognitive problems using a comprehensive neuropsychological assessment. A retrospective chart-review was performed on the 102 records of patients from the Geriatrics Clinic at the University of North Texas Health Science Center who presented with cognitive deficits. Charts were reviewed to obtain data on vitamin supplementation, vitamin status, history of chronic conditions and other biochemical data. The available database was used to obtain data on neuropsychological assessment. The study demonstrated mild association between vitamin B12 and folate status and cognitive deficits. There appeared to be a higher cut-off level that is above the traditionally used levels for vitamin B12 and folate deficiency concentrations at which ...
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The Athlete Leader Role: Interaction of Gender, Sport Type, and Coaching Style.

The Athlete Leader Role: Interaction of Gender, Sport Type, and Coaching Style.

Date: December 2006
Creator: Wildman, Jonathan C. Jr.
Description: Effective leadership is a concept shown to be important for successful team performance in the fields of business, education, and sport. In sport, the role of the athlete leader has been under-examined and specifically, how coaching behaviors can affect athlete leader behaviors and how various leadership models (e.g., trait, behavioral, situational) relate to the athlete leader role has never been studied. The present study examined how autocratic, democratic, and collaborative coaching styles affect the athlete leader behavior preferences of athletes of different genders and sport types. Three coach scenarios reflecting the three aforementioned coaching styles were created so that athletes could imagine that they were coached by the individual presented in the scenario and then rate what type of athlete leader behaviors that they would prefer given the style of the coach that they read about. Results showed that the coach scenarios failed to have a significant impact; however, significant differences were discovered between men and women and between individual and team sport athletes on variables measuring preferred performance/task, relationship, motivation, and representation behaviors. Data were gathered on the style of athletes' current coach and this variable also produced significant differences for such behaviors as resolving conflict, providing positive reinforcement, ...
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Athletes' Attitudes Toward Seeking Sport Psychology Consultation: Development and Validation of the Sport Psychology Attitudes Questionnaire

Athletes' Attitudes Toward Seeking Sport Psychology Consultation: Development and Validation of the Sport Psychology Attitudes Questionnaire

Date: August 2000
Creator: Harmison, Robert J.
Description: The purpose of the study was to create a questionnaire to identify underlying dimensions of athletes' attitudes toward seeking sport psychology consultation. A total of 1138 athletes (625 males, 513 females) representing 36 sports from four levels of participation were used to develop the Sport Psychology Attitudes Questionnaire (SPAQ). In Study I, exploratory factor analysis produced a two-factor solution that accounted for 37.1% of the overall variance: (a) belief in the credibility of sport psychology (14 items) and (b) preference for similarity with a sport psychology consultant (SPC) (7 items). Three items were omitted following item analysis, and nine items were eliminated after failing to load higher than the cut-off value of .40 on either of the factors. In Study II, confirmatory factor analysis supported the two-factor model, and multigroup comparison in Study III demonstrated that the model fit well for both male and female samples. As for validity, the SPAQ factors predictably (a) distinguished between athletes with and without previous experience with a SPC, (b) related to ratings of helpfulness/satisfaction related to a previous experience with a SPC, and (c) correlated with willingness to see a SPC for help in the future. Also, the SPAQ factors were related, as ...
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