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College Students at Risk of Academic Failure: Neurocognitive Strengths and Weaknesses

Description: This study examined the neurocognitive skills, incidence of mild head injury, incidence of learning disabilities, and study habits among college students with grade point average of 2.00 or below (N = 25) as contrasted with college students with grade point average above 2.00 (N = 70). The intent of this research was to extend the work of Segalowitz and Brown (1991) and Segalowitz and Lawson (1993) who found significant associations between reported history of mild head injury and developmental… more
Date: December 1995
Creator: Saine, Kathleen C. (Kathleen Chen)
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

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

Description: 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
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

The Role of Neuronal Histamine in Memory Processing

Description: Neuronal histamine(HA) may play a role in memory processing. This hypothesis is based upon evidence that the action of histamine at central H1 and H2 histamine receptor sites has been shown to modulate memory of rats and mice in adversely-motivated tasks. The purpose of this study was to test this hypothesis more thoroughly in mice using two distinct approaches to neuronal HA manipulation. One approach involved the use of new pharmacological agents which act at the histamine H3 receptor. It has… more
Date: December 1995
Creator: Stutts, William A. (William Anderson)
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Perseveration Errors in the Performance of Dichotic Listening Tasks by Schizophrenics: The Role of Stimulus Fusion

Description: The purpose of the present study was to compare the number of perseverations on fused (no delay) versus unfused (0.5 msec delay) CV-DL tasks with measures on a battery of executive functions across three groups: Schizophrenics (SCZ), Manic-Depressives (MD), and normal controls (NC).
Date: December 1995
Creator: Gard, Diane M.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Information Processing in Schizophrenia and Bipolar Disorder: A Discriminant Analysis Study

Description: A study was conducted in which a computerized battery of information processing tasks (called the COGLAB) was administered to three subject groups: patients with schizophrenia, patients with bipolar disorder, and normal controls. The tasks included Mueller-Lyer illusion, reaction time, size estimation, Wisconsin Card Sort, backward masking. and Asarnow Continuous Performance.
Date: August 1995
Creator: Tam, Wai-Cheong Carl
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

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

Description: 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 Calif… more
Date: August 1995
Creator: Hall-Johnson, Richard Earl
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Memory Functions among Children Irradiated for Brain Tumor

Description: Children who have received radiation therapy for the treatment of brain tumors have been shown to experience neurocognitive deficits which appear to increase over time. The purpose of this study was to examine the memory functioning of 22 children irradiated for brain tumor and 22 healthy children of the same age who had not received irradiation. Subjects were administered a brief form of the WISC-III, to obtain an IQ, and the Wide Range Assessment of Memory and Learning (WRAML), to evaluate vi… more
Date: December 1995
Creator: McCormack, Sarah (Sarah Smith)
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Characterization of Tolerance and Cross-tolerance between Noncompetitive N-methyl-D-aspartate (NMDA) Antagonists in Rats Trained to Self-administer Ketamine

Description: Ketamine and phencyclidine (PCP) are noncompetitive antagonists of the N-methyl-D-aspartate (NMDA) type of ligand-gated glutamate receptors. Both agents have high abuse liability, and may produce dependence. Tolerance to the reinforcing effects of drugs of abuse is widely regarded as a key component of the dependence process. Therefore, the present study was conducted to examine whether tolerance develops to the reinforcing effects of ketamine, and whether PCP and dizocilpine, a noncompetitive … more
Date: December 1995
Creator: Ward, Amie S. (Amie Sue)
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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