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Effects of Acute and Chronic Glycemic Control on Memory Performance in Persons with Type II Diabetes Mellitus (open access)

Effects of Acute and Chronic Glycemic Control on Memory Performance in Persons with Type II Diabetes Mellitus

Memory performance was measured in 48 persons between the ages of 40 - 65 with Type II diabetes. Correlations between performance on the California Verbal Learning Test, tests of Working Memory, Priming Memory, and Prospective Memory and several predictor variables were examined. These variables included the Slosson Intelligence Test Scores, demographic variables, presence of diabetic complications, finger-stick and HbA1c measures. Subjects performed worse than the normative sample on the California Verbal Learning Test. Higher chronic and acute blood glucose tended to be associated with worse performance on the CVLT, Priming, and Working Memory. However, after the effects of intelligence, education, and sex were statistically controlled, glycemic status predicted performance on just a few memory measures. These were short-delay recall compared with recall on List A trial 5, and List B on the CVLT, and recall accuracy on digit forward of the Working Memory Test. Glucose status was unrelated to performance on a prospective memory test. Several other demographic and diabetic complication factors predicted performance beyond the contribution of intelligence. These results contrast with previous studies which found strong effects of glycemic control, but did not statistically control for the contribution of intelligence. Differential effects of diabetic status on different aspects …
Date: August 1995
Creator: Hall-Johnson, Richard Earl
System: The UNT Digital Library
Validation of the Expanded McCarron-Dial System for Diagnosis of Neuropsychological Dysfunction in Adults (open access)

Validation of the Expanded McCarron-Dial System for Diagnosis of Neuropsychological Dysfunction in Adults

The McCarron-Dial System (MDS) has successfully predicted vocational and independent living outcomes with neuropsychologically disabled individuals receiving rehabilitation services. In addition, preliminary validation studies suggest that the abbreviated MDS is useful for clinical neuropsychological diagnosis. The present study represents part of an ongoing research project aimed at validating the expanded version of the MDS for diagnosis of neuropsychological dysfunction. Specifically, it was hypothesized that the expanded MDS would be able to accurately discriminate between brain-damaged and non-brain-damaged individuals. Accurate diagnosis facilitates rehabilitation efforts for individuals with neuropsychological disabilities and the data profile provided by the expanded version of the MDS can consequently form the basis from which more complete individual treatment and rehabilitation plans can be conceptualized.
Date: August 1998
Creator: Colaluca, Beth
System: The UNT Digital Library
The Relationship Between Hostility and Social Support with Chronic Pain and Health Indicators (open access)

The Relationship Between Hostility and Social Support with Chronic Pain and Health Indicators

The purposes of the study were to examine the psychosocial variables of hostility and social support, and their independent relationships with resting physiological levels and chronic pain symptoms, and to examine the independent relationships of chronic pain chronicity and social support with hostility.
Date: December 1997
Creator: Witham, Kevin J.
System: The UNT Digital Library
Neuropsychological Sequelae of Adult Subjects with Retinopathy of Prematurity Compared to Other Blind Populations (open access)

Neuropsychological Sequelae of Adult Subjects with Retinopathy of Prematurity Compared to Other Blind Populations

The blind have generally been considered to be a homogeneous population whose deficits arise from an interaction of loss of vision, age of onset and socialization. Sequelae are posited to exist merely due to the limiting effects of blindness on experience. This is believed to affect all blind persons equally regardless of cause of blindness provided that independent secondary disabilities do not exist. This study investigated the possibility that different causes of blindness are related to specific neuropsychological deficits which cannot be explained by the mere presence of blindness. It was found that neuropsychological differences existed among specific sub-populations of blind persons. These results suggested that the cause of blindness may be a marker for specific Central Nervous System involvement.
Date: August 1992
Creator: O'Brien, Eugene Patrick
System: The UNT Digital Library
Frontal Lobe Functions in Attention Deficit Hyperactivity Disorder from Children to Young Adults (open access)

Frontal Lobe Functions in Attention Deficit Hyperactivity Disorder from Children to Young Adults

Individuals with attention deficit hyperactivity disorder (ADHD) with and without a learning disorder (LD) and a control group of clinically referred individuals with behavioral problems were compared on four neuropsychological tests of frontal lobe functioning. Test results were collected to examine if ADHD individuals with and without LD have deficits in frontal lobe functioning. Two age groups were used to examine developmental differences. In the six to ten age group there were 27 ADHD, 17 ADHD/LD and seven other clinically referred individuals. In the 11 -20 age group there were 12 ADHD, 23 ADHD/LD and 24 other clinically referred individuals. The ADHD and ADHD/LD groups performed at a lower level than the other diagnostic group on the freedom from distractibility factor of the WISC-R and the omission and commission errors of the Gordon Diagnostic system. Differences for the ADHD and ADHD/LD groups were also found on the number of correct responses for the Gordon Diagnostic system, the Speech Sounds test and the Seashore Rhythm test. The developmental differences that were found were not influenced by diagnosis. The deficits that the ADHD individuals with and without LD demonstrated were not affected by age.
Date: December 1996
Creator: Kramer-Stutts, Traci A.
System: The UNT Digital Library
Assessing the Psychological Impact of Fertility Treatment (open access)

Assessing the Psychological Impact of Fertility Treatment

This controlled descriptive study was designed to investigate the psychological status of couples who are engaged in advanced fertility treatments. A battery of psychological test instruments, including the Millon Behavioral Health Inventory (MBHI), the Health Attribution Test (HAT), the Beck Depression Inventory (BDI), the Beck Anxiety Inventory (BAI), and the Marlowe-Crowne Social Desirability Scale (MCSDS), was used to measure psychological variables that have been shown in the infertility research literature to be associated with the psychological experiences of infertility patients. The scores from the four assessment instruments were compared with those of pregnant couples in childbirth education classes to differentiate the impact of stress associated with fertility treatment from the stress experienced by third trimester pregnant couples. Eighty-five subjects (42 male and 43 female) volunteered for the study and completed packets of questionnaires. The groups were designated Treatment (infertile couples) and Control (pregnant couples). The resulting data were collected and analyzed on the basis of group mean scores on the test instruments.
Date: August 1997
Creator: McKenna, Kenneth A. (Kenneth Allen)
System: The UNT Digital Library
Neuropsychological Functioning of Adult Subjects with Diabetic Retinopathy Compared to a Normal Blind Population (open access)

Neuropsychological Functioning of Adult Subjects with Diabetic Retinopathy Compared to a Normal Blind Population

To investigate the possibility that chronic diabetes mellitus was related to specific neuropsychological deficits, cognitive functioning was measured in subjects with diabetic retinopathy (without secondary disabilities), and in subjects classified as normal blind adults (also without secondary disabilities). The scores for the two groups were then compared.
Date: August 1994
Creator: McGee-Hall, Joanne M. (Joanne Moore)
System: The UNT Digital Library
Memory Patterns: Differentiated between Environmental Sensitive Patients and Psychiatric Patients (open access)

Memory Patterns: Differentiated between Environmental Sensitive Patients and Psychiatric Patients

The purpose of the present study was to ascertain if environmentally sensitive patients would demonstrate different memory deficit patterns than psychiatric patients on objectively measurable memory tasks. One-hundred sixteen patients were surveyed; 56 environmentally sensitive patients were compared to 60 psychiatric patients. All subjects were administered a Wechsler Adult Intelligence Scale-Revised screen, the Wechsler Memory Scale-Revised and the Harrell-Butler Comprehensive Neurocognitive Screen after history of head injury was ruled out. Results indicate a significantly different pattern of memory dysfunction between the environmental patients and the psychiatric patients, indicating two different etiologies. A screening device derived from the coefficients from a Canonical Analysis is proposed to distinguish between the two populations in the absence of blood serum levels of environmental toxins or poisons. The detrimental effects of misdiagnosis and the beneficial effects of accurate diagnosis of environmental illness are discussed.
Date: August 1993
Creator: Lockart, Esther
System: The UNT Digital Library
Biopsychosocial Factors Related to Health among Older Women (open access)

Biopsychosocial Factors Related to Health among Older Women

Older adults are more vulnerable to the ill effects of life stress due to physiological changes associated with aging that result in decreased immunocompetence. Stressors interacting with an aging immune system may produce further declines in health. Variables shown to modulate the effect of stressors on neuroendocrine and immune function and health include social support, personality, coping style, and health locus of control. A comprehensive model is proposed that includes: life stressors, social resources, psychological resources, interaction between stressors and social resources, neuroendocrine and immune function, and symptomatology. This model was evaluated using structured equation modeling. Participants were 97 active, community dwelling, older women, ranging in age from 60 to 93 years.
Date: August 1995
Creator: Carter, Alice Powers
System: The UNT Digital Library
High-Risk Sexual Behaviors of Young Adults: AIDS Prevention (open access)

High-Risk Sexual Behaviors of Young Adults: AIDS Prevention

The Health Belief Model was used to study HIV/AIDS beliefs of 419, 18 to 24 year old, never married, sexually active, heterosexual college students and predict their AIDS preventive behaviors from a larger sample of 662 college students. The structural properties of the scales used were evaluated using confirmatory factor analysis. Recent preventive behaviors were predicted in a LISREL Structural Equation Modeling analysis.
Date: August 1994
Creator: Bloodgood, Martha Madden
System: The UNT Digital Library
Brief Imagery Training : Effects on Psychological, Physiological and Neuroendocrinological Measures of Stress and Pain (open access)

Brief Imagery Training : Effects on Psychological, Physiological and Neuroendocrinological Measures of Stress and Pain

The present study investigated the influence of a brief, intensive biofeedback-assisted imagery training regimen on psychological, physiological and neuroendocrinological measures of pain and stress in injury related chronic pain patients. The subjects were 36 patients (myelography examcandidates) who were assigned to the imagery or wait-list control group by order of referral presentation and to formulate equivalent groups.
Date: August 1992
Creator: Osborne, Connie M. Brajkovich (Connie Marie Brajkovich)
System: The UNT Digital Library
The Use of Single Photon Emission Computed Tomography to Indicate Neurotoxicity in Cases of Pesticide and Solvent Exposures (open access)

The Use of Single Photon Emission Computed Tomography to Indicate Neurotoxicity in Cases of Pesticide and Solvent Exposures

This study examined the effect of neurotoxic chemical exposures on brain processes using Single Photon Emission Computed Tomography (SPECT). A control group carefully screened for good health and minimal chemical exposures was compared to two groups of patients diagnosed with health problems following exposure to pesticides or to organic solvents.
Date: August 1995
Creator: Fincher, Cynthia Ellen
System: The UNT Digital Library
Self-Other Perceptions under Challenge: a Personal Construct Approach to Hostility and the Type A Behavior Pattern (open access)

Self-Other Perceptions under Challenge: a Personal Construct Approach to Hostility and the Type A Behavior Pattern

The purpose of the study was to determine if exposure to a challenging interpersonal situation would have an adverse impact on intra- and interpersonal constructs. Individual difference variables including level of hostility and anger, Type A behavior, control in social situations, depression and sex were examined as "predictors" of those more likely to be adversely affected by personal challenge. Eighty subjects, 40 male and 40 female, completed questionnaires at a pretesting session including measures of hostility, the Type A behavior pattern, trait anger, exaggerated social control, depression, and self-other constructs. Twenty subjects then participated in a "supportive" role-play condition where the confederate was agreeable and friendly. Sixty subjects participated in a "challenge" role-play condition; the confederate was disagreeable, confrontive, and unpleasant. The posttesting measures were then completed.
Date: August 1994
Creator: Bollinger, Hautina K. (Hautina Kay)
System: The UNT Digital Library
Coping with Severe, Acute Psychological Trauma: the Killeen Shooting Incident (open access)

Coping with Severe, Acute Psychological Trauma: the Killeen Shooting Incident

The present study examined the relationship between coping and psychological and psychosomatic distress of 25 individuals who experienced the same severe, acute traumatic event: the violent shooting that killed 23 people and severely injured 20 more in Luby's Cafeteria in Killeen, Texas, on October 16, 1991. Distress was assessed by one-month pre-event and post-event scores on the SCL-90R, Psychosomatic Questionnaire, and by a Life Event Questionnaire score for the year before the incident. Coping was measured by a modified version of the Ways of Coping Scale (Folkman et al., 1986) and Response Style Questionnaire (Nolen-Hoeksema & Morrow, 1991). All post-event distress scores, except the Psychosomatic score, significantly increased over their corresponding pre-event scores regardless of gender. Although female distress scores were consistently higher than male scores, gender was predictive of post-event distress only for the SCL-90R Anxiety, Somatization, and Global Severity Index scales. The only pre-event score found to be predictive of post-event distress was the Psychosomatic scale. Regression analysis, with demographic and pre-event variables controlled, found a significant positive relationship between Escape/Avoidance coping and one-month post-event levels of Anxiety and Psychosomatic distress. Findings were discussed in the context of the process-oriented stress-illness model and were compared to current disaster …
Date: August 1994
Creator: Forté, Beverly K.
System: The UNT Digital Library
The Effects of Music Training on Electroencephalographic Coherence of Preschool Children (open access)

The Effects of Music Training on Electroencephalographic Coherence of Preschool Children

The purpose of this study was to examine the effects of music training on electroencephalographic (EEG) coherence of preschool children. EEG coherence is a measurement of brain wave activity that reflects anatomical and neurophysiological parameters and functional connectivity between areas of the brain. Participants were 4- to 6-year-old children divided into two groups: one received music training for 20 minutes twice a week for 10 weeks while the other group served as controls. Nineteen channels of EEG data were collected from each child pre- and post-training. Data were collected from three conditions: eyes-open resting, listening to music, and performing the Object Assembly subtest of the Weschler Preschool and Primary Scale of Intelligence - Revised (1989). The hypothesis was that the music training group would show increased EEG coherence as compared to controls. The EEG data was reduced into seven bandwidths and analyzed separately for each condition. Multiple ANCOVAs were used to factor out pre-test variability and to maximize connectivity changes between the two groups. The dependent measures were the post-QEEG electrode pairs and the covariates were the pre-QEEG electrode pairs. Results indicated the eyes-open and listening to music conditions showed more significant changes between the groups than the Object Assembly …
Date: August 1999
Creator: DeBeus, Roger J. (Roger John)
System: The UNT Digital Library
Factors of the Geriatric Depression Scale that may Distinguish between Four Cognitive Diagnostic Groups: Normal, Mild Cognitive Impairment, Dementia of the Alzheimer's Type, and Vascular Dementia (open access)

Factors of the Geriatric Depression Scale that may Distinguish between Four Cognitive Diagnostic Groups: Normal, Mild Cognitive Impairment, Dementia of the Alzheimer's Type, and Vascular Dementia

The purpose of the current study was to explore the relationship between cognitive status and depression in a sample of geriatric patients. Participants included 282 geriatric patients ranging in age from 65 to 96 years who were classified according to diagnosis as: DAT, VaD, MCI, and Norm. All were referred for neurocognitive testing from the Geriatric Assessment Program (GAP) at the University of North Texas Health Science Center (UNTHSC) in Fort Worth, Texas. This study sought to identify factor structures for two versions of the GDS using a geriatric sample of cognitively impaired and intact patients. It then compared these factors to each other to determine whether the GDS-15 is truly a shorter version of the GDS-30. These were then compared to a previously determined factor structure. This study explored whether the four-factors of the GDS-30 are able to differentiate cognitive diagnostic groups. Further, this study sought to identify whether the severity of cognitive decline impacted GDS factor score for each of the cognitively impaired groups. Results revealed a two-factor model of the GDS - 15 and a four-factor model with the GDS - 30. The GDS-15 factors did not differ from the first two factors of the GDS-30. Comparison …
Date: December 2009
Creator: Cornett, Patricia F.
System: The UNT Digital Library