Browsing by Subject "Psychiatry and Psychology"
Now showing 1 - 20 of 28
- Results Per Page
- Sort Options
Item 2011 Bibliography of Publications(2012-06-13) Mason, Tim; Lindsey, MarylouiseItem A Path Analysis of Body Mass Index, Body Image, and Unhealthy Dietary Behavior as Contributors to Suicidal Behavior in Female Adolescents(2004-05-01) Rorie, Michele Taylor; Balcazar, Hector; Lurie, Sue; ReneRorie, Michele Taylor, A Path Analysis of Body Mass Index, Body Image and Unhealthy Dietary Behavior as Contributors to Suicidal Behavior in Female Adolescents. Doctor of Public Health (Social and Behavioral Sciences), May 2004, 120 pp., 17 tables, 6 illustrations, references, 106 titles. Objectives- This study examined the pattern and magnitude of relationships between body mass index, body image, unhealthy dietary behaviors, and suicidal behavior among a sample of White, African American, and Hispanic adolescent females. Methods-This study employed secondary analysis of the 2001 Youth Risk Behavior Survey public-use dataset to provide quantitative estimates of the causal connections between body mass index, body image, dietary behaviors, and suicidal behavior. A sample (n=5,218) of White, African American, and Hispanic adolescent females aged 14-17 were selected for analysis. This cross-sectional study involved public high school students in grades 9-12. The variables/constructs BMI, Body Image, and Dietary Behavior were examined using a path analysis to determine the magnitude of effects on Suicidal Behavior in adolescent females. Results- The path coefficients were obtained for the path model using multiple regression equations, which took direct and indirect effects into account. The Female Adolescent Model (n= 5,218) yielded an R2 = .27. This meant that 27% of the variance in Suicidal Behavior was explained by BMI, Body Image, and Dietary Behavior. When race/ethnicity was analyzed separately, different values were observed. The White Adolescent Female Model (n=2,768) had an R2=.32. The Black or African American Model (n=1,206) had an R2=.23, and the Hispanic or Latino Model (n=1,224) had an R2=.27. Conclusion- The basic state of what is an actual fact about a person (i.e. weight) does not cause an increase of harmful or destructive behavior. The person’s beliefs drive intention as it was demonstrated through the immergence of significant indirect pathways from BMI through Body Image and Dietary Behavior to Suicidal Behavior. The path analyses for the three racial groups suggest that there are varying degrees of influence among BMI, Body Image, Dietary Behaviors, and Suicidal Behaviors.Item Body Image, Depressed Mood, Weight Concerns, and Risky Sexual Behaviors Among Female Adolescents(2006-05-01) Marshall, Khiya J.Marshall, Khiya J., Body Image, Depressed Mood, Weight Concerns, and Risky Sexual Behaviors among Female Adolescents. Doctor of Public Health (Social and Behavioral Sciences), May 2006, 75 pp., 17 tables, bibliography, 90 titles. Adolescence is a time of self-discovery and growth, both emotionally and physically, particularly for adolescent females. The literature lacks specific research pertaining to female adolescent females. The literature lacks specific research pertaining to female adolescent’s body image and other concerns and their association with risky sexual behaviors. Using secondary data from the 2003 Dallas Youth Risk Behavior Survey (YRBS; 9th-12th grade), this study explored the relationship between body image, having a depressed mood, and weight control behaviors and how these may translate into risky sexual behaviors among Dallas Independent School District (DISD) adolescent females. Most respondents were African American and Hispanic. The main hypotheses were: a) African American and Hispanic adolescent females will be more likely to have a depressed mood, an unrealistic body image, or weight control behaviors compared to Caucasian adolescent females; and b) Adolescents with unrealistic body image, depressed mood, and weight control behaviors will be more likely to engage in risky sexual behaviors, regardless of race or ethnicity. As hypothesized, more African American and Hispanic adolescents had a depressed mood, and more Hispanics had an unrealistic body image compared to Caucasians. The hypothesis that depressed mood and unrealistic body image would be significant predictors of engaging in risky sexual behaviors was corroborated only for depressed mood. Engaging in weight control, although hypothesized as not a significant predictor, was a significant predictor for using alcohol/drugs before his last sexual intercourse. School-based sexual education programs that target adolescent females in DISD should focus on abstinence or consistent condom use if sexually active, weight control behaviors, and depressed mood and its implications.Item Corticotropin-Releasing Factor and Corticosterone Modulate the Anxiogenic-Like Effects of mCPP(1998-06-01) Jenkins, Jennifer A.; Michael Forster; Robert Luedtke; Patricia GwirtzJenkins, Jennifer A., Corticotropin-Releasing Factor and Corticosterone Modulate the Anxiogenic-Like Effects of mCPP. Doctor of Philosophy (Pharmacology), June 1998, 119 pp., 2 tables, 29 figures, bibliography, 100 titles. The administration of PTZ or mCPP produces anxiety-like behavior as measured by an increase in the percentage of entries into the open arms and the time spent on the open arms of the elevated plus maze (Prunell et al., 1994). Reportedly, PTZ and mCPP substitute for each other in the drug discrimination paradigm (Wallis and Laz, 1998). It is therefore suggested that commonality exists among anxiogenic drugs as perceived by trained animals. Andrews and Stephen (1990) suggested that this overall parallelism is an indication that anxiogenic agents may possess similar properties. Therefore, the question posed is as follows: Is there a common denominator anxiety? The global hypothesis is that the core component of anxiety produced by anxiogenic agents or processes involves stimulation of the HPA axis to release CRF, ACTH and/or CORT. Long Evans rats were trained to discriminate either mCPP (1.4 mg/kg) or PTZ (16mg/kg) from saline in a two-lever choice procedure (FR10) which is food reinforced. Animals were pretreated with CRF, α-helical CRF (a CRF antagonist), two steroid synthesis inhibitors (ketoconazole, KETZ and aminoglutethimide, AMG), CORT or underwent an adrenalectomy prior to behavioral testing in order to test the hypothesis that the release of CRF and/or CORT are components of the discriminate stimulus of the mCPP and/or PTZ. Pretreatment with CRF, KETZ, AMG and an adrenalectomy facilitated mCPP level selection. However in the absence of mCPP neither drug nor adrenalectomy produced drug lever selection. In addition CORT did not alter the mCPP dose response curve. However, CORT replacement therapy returned the does response curve to baseline in adrenalectomized animals. Alpha-helical CRF did not block mCPP discrimination. Unlike mCPP-trained animals, KETZ and AMG decreased PTZ-lever selection in PTZ-trained animals. In addition, CORT enhanced and partially substituted for the discriminative stimulus of PTZ. However, adrenalectomy completely abolished drug lever selection in PTZ animals. To compare the discriminative stimulus effects of mCPP and PTZ, PTZ-trained animals were injected with cumulative doses of mCPP. mCPP-trained animals were injected with cumulative doses of PTZ. mCPP and PTZ minimally substituted for each other. The results suggested that neither CRF nor CORT are components of the discriminative stimulus of mCCP and that the role of the HPA axis in mCPP discrimination maybe be a modulator of the stress response. However, CORT is a component of the discriminative stimulus of PTZ such that CORT is necessary for drug lever selection in PTZ trained animals.Item Differences in Risk of Injury Between Stimulant-Treated and Untreated ADHD Patients(2006-08-01) Segars, Larry W.; Raghbir Sandhu; Krisine LykensSegars, Larry W., Differences in Risk of Injury between Stimulant-Treated and Untreated ADHD Patients. Doctor of Public Health (Epidemiology), August 2006, 63 pp, 7 tables, 0 illustrations, references, 78 titles. ADHD is a common psychiatric disorder of childhood and adolescence that also occurs in adults and spans the life of the patient. ADHD is characterized by lack of focus, distractibility, and poor concentration. Limited data have been generated focusing on ADHD patients and the association with an increased risk of injury. Unfortunately, no study has been published evaluating the effect of stimulant treatment for ADHD on the risk of injury requiring ambulatory medical care. This research utilized four concatenated years, specifically 1998-2001, of the National Ambulatory Medical Care Survey (NAMCS). This dissertation is comprised of five chapters beginning with a description of ADHD, its characteristics, diagnosis, and treatment. This overview chapter is followed by a complete review of the literature describing the publication’s which assessed the association between ADHD and the risk of injury. The next chapter is a thorough review of the NAMCS and its methodology. The concatenated dataset captured 889 office visits associated with a diagnosis of ADHD, 666 of which were also related to the prescription of a stimulant for the management of ADHD. Using NAMCS’s weight variable these values produced a national estimate of 21,223,391 office visits associated with the ADHD diagnosis and 15,604,329 office visits associated with the prescription of a stimulant for ADHD. This research determined that there was a borderline statistically significant increased association with the prescription of a stimulant for the treatment of ADHD and the risk of injury requiring treatment in an ambulatory medical care setting. Interestingly, compared to patient’s who recorded their race as Caucasian, patients who recorded their race as “Other”; representing the races of Asian, Native Hawaiian/Other Pacific Islander, or American Indian/Alaska Native, and individuals indicating more than one race, had a statistically significant increased risk of injury necessitating treatment in an ambulatory medical care setting. Potential theories for this unique finding, along with the limitations of this research, are provided in the final discussion chapter.Item Discriminative and Negative Reinforcing Properties of the Periaqueductal Gray and the Medial Hypothalamus(1994-12-01) Jung, Marianna E.; Emmett-Oglesby, Michael W.; Yorio, ThomasMarianna Eunsun, Jung, Discriminative and Negative Reinforcing Properties of Electrical brain stimulation of the Periaqueductal Gray and the Medial Hypothalamus. Master of Science [Biomedical Sciences, (Pharmacology)], December, 1994, 123 pp., 24 figures, references, 137 titles. Electrical brain stimulation (EBS) of the periaqueductal gray (PAG) and the medial hypothalamus (MH) is known to serve as a discriminative and a negative reinforcing stimulus (NRS). Using a two-lever food reinforced discrimination paradigm and a switch-off paradigm, the present study investigated the effects of anxiolytic drugs and an anxiogenic drug on these stimulus effects. A prototypic anxiogenic, pentylenetetrazole (PTZ) potentiated both discriminative stimulus and NRS effects, whereas the full benzodiazepine (BZD) agonist diazepam (DZP), the partial BZD agonist abecarnil (ABC) and 5-HT1A agonist buspirone (BUS, chronic regimen) attenuated a NRS effect. A BZD antagonist, flumazenil (FLU) blocked the effects of DZP and ABC on the NRS effects. DZP failed to attenuate the discriminative stimulus effect. Thus, present study extended the use of a switch-off paradigm to detect novel anxiolytic ABC (putative) and BUX as well as an anxiogenic PTZ. In addition, under the condition used in this study, the use of NRS in a switch-off paradigm more reliably detected both anxiolytic drugs and an anxiogenic drug than the use of discriminative stimulus in a two-lever food reinforced paradigm.Item Eating Disorders: Best Age for Education and Prevention(2004-05-01) Chasmawala, Jayshri R.; Susan Franks; Susan Eve; Muriel MarshallChasmawala, Jayshri R., Eating Disorders: Best Age for Prevention and Education. Master of Public Health (Dual Degree D.O./M.P.H.), May 2004, 22 pp., 11 tables, 6 illustrations, references, 16 titles. Objective: This study attempts to determine the best age to design a prevention program to prevent the development of eating disorders based on adolescents’ behavior and attitudes towards eating disorders. Methods: Forty students aged 11-17 answered a self-reported questionnaire regarding dieting and weight, identification of emotional states, and general awareness of eating disorders. Age group divided the sample: 13 years of age and younger; and 14 years of age and older. Multivariate analyses were performed to determine existence of any differences between the populations. Results: An overall difference in the age groups exists with statistic significance. The difference in mean values of interoceptive awareness is statistically significant between the age groups. Conclusion: Interoceptive Awareness, not awareness level of eating disorders, is more indicative of the best age for prevention. Younger age children may benefit more from prevention due to lack of emotional maturity which leads to higher risk of development of eating disorders.Item Establishing the Effects of Exercise Schema and Self-Schema on Emotional Distress(2003-08-01) Rodriguez, Leslie R.; Claudia Coggin; Joseph Doster; Daisha CipherRodriguez, Leslie R., BSN, RN, Establishing the Effects of Exercise Schema and Self-Schema on Emotional Distress. Masters of Public Health (Health Behavior), August 2003, 78 pp., 4 tables, references, 81 titles. Chronic diseases’ resulting from anger and depression represents a significant problem. Vast amounts of resources and dollars are expended and utilized. Their link to the development of cardiovascular disease, hypertension, and diabetes is recognized. Physical activity produces improvements in self-esteem, increased alertness, and decreased anxiety. The purpose of this study was determining the effect exercise and exercise schema has on mood states. College age students (N=198) of a large North Texas University were recruited. Data collection included States of change, the Exerciser self-schema questionnaire, Clinical Analysis Questionnaire, and the State Trait Anger Expression Inventory. Significance in some mood states of those who were exercising and exercise schematic were found.Item Examining Coronary Heart Disease Risk Factors and Its Relationship with Physical Activity in a Self-Reported Survey(2004-05-01) Fernandes, Alroy H.; Frederick Fridinger; Daisha Cipher; Claudia CogginFernandes, Alroy H., Examining Coronary Heart Disease Risk Factors and its Relationship with Physical Activity in a Self-Reported Survey. Masters of Public Health (Community Health), May 2004, 49pp., 3 illustrations, references, 38 titles. This study uses ‘Healthstyles,’ a self reported survey of 3,719 respondents above the age of 18, to look at exercise behavior in people at risk for CHD. Married or higher earning individuals were more likely to show sufficient exercise levels. Individuals with high blood pressure, high blood cholesterol, diabetes, obesity or family history of heart disease reported lesser levels of sufficient exercise than those without these conditions. People with CHD risk factor reported lower scores on questions that dealt with attitude and opinions about exercise behavior, and this was significantly correlated with lower levels of sufficient exercise. This supports the ‘positive attributes of the behavior’ aspect of the social cognitive theory of exercise. The attitude questions used, although not specific, could be included in a self-reported survey for the purpose of qualitatively and quantitatively assessing exercise intervention; albeit more studies are required to validate this claim.Item Gender Differences: Making the Decision to Seek Treatment for Symptoms of Acute Myocardial Infarction(2000-05-01) Borski, Catherine A.; Shelia Reed; Joseph Doster; Claudia CogginBorski, Catherine A., Gender Differences: Making the decision to seek treatment for symptoms of acute myocardial infarction. Masters of Public Health (Health Behavior), May, 2000, 57 pp., reference list, 37 titles. The purpose of this study was to investigate the problem: Do differences in interpretation and response to symptoms of AMI account for additional delay in seeking treatment in women compared with men? The sample consisted of 50 (21 women, 29 men) post-myocardial infarction patients in a large, non-profit, teaching hospital in central Texas. Participants were interviewed within 72 hours of admission using the Revised Response to Symptoms questionnaire. In this study, it was found that there was a statistically significant difference between the cognitive and emotional processes that men and women use when making the decision to seek treatment for symptoms of AMI.Item Hispanic Female Adolescents at Risk for Suicide and the Use of Illicit Drugs(2006-10-01) Luncheon, CecilyLuncheon, Cecily. M.D., M.P.H. Hispanic Female Adolescents at Risk for Suicide and the Use of Illicit Drugs. Doctor of Public Health, Fall 2006, 88 p.p., 31 tables, bibliography, 77 titles. This study examines the hypothesis that Latina adolescents in high school who were at risk for suicide are more likely to use illicit drugs than Non-Latinas in high school who are at risk for suicide. Data was analyzed from the 2003 Centers for Disease Control and Prevention Youth Risk Behavioral Survey. A national sample of 9th-12th grades students participated in a self-administrated questionnaire at school. The study who conducted based on 6,826 Hispanic/Latinas, black, non-Hispanic and white, non-Hispanic female adolescents. Three at risk for suicide, nine frequent illicit drugs and three controlling variables were chosen to conduct the study. Chi-square test assessed the significant of difference between races and binary logistic regression models were utilized to estimate the association between at risk for suicide and drug use. Among the three race/ethnicities who were at risk for suicide, Hispanic/Latinas had the highest drug use prevalence. The first logistic regression model that seriously consider attempting suicide were associated with Latinas (OR= 1/0.68 [95% CI, 1/0.53-1/0/87]), suburban youth (1.28 [1.02-1.63]), marijuana (1.79 [1.49-2.16]), inhalants (2.58 [1/46-3.28]), and steroids without MD’s prescription (1.98 [1.32-2.99]). The second logistic regression model established that those who made a suicide plan were associated with Latinas (OR=1/0.66 [95% CI, 1/0.48-1/0.91]), marijuana (1.40 [1.00-1.95]), inhalants (3.18 [2.05-3.79]), methamphetamines (2.21 [1.42-3.76]), and used a needle to inject any illegal drug (4.24 [1.29-12.66]). While the third logistic regression model found that attempted suicide were associated with Latinas (OR= 1/0.67 [95% CI, 1/0.48-1/0.94]), 11th and 12th grades (0.66 [0.46-0.94]) and (0.40 [0.27-0.60]), marijuana 2.50 [1.99-3.16]), cocaine (1.67 [1.09-2.58]), inhalants (2.69 [1.89-3.82]), methamphetamines, taken steroids without MD’s prescription (1.95 [1.12-3.40]) and used a needle to inject any illegal drug (4.30 [1.16-15.87]). Greater awareness about the physical and mental health status of Latinas are needed to ensure that good mental health programs are available for Latina adolescents.Item Interactive Effects of Mental and Physical Stress on Cardiovascular Control(1998-08-01) Westerholm, Erin Carpenter; Smith, Michael; Raven, Peter B.; Shi, XiangrongWesterholm, Erin C., Interactive Effects of Mental and Physical Stress on Cardiovascular Control. Master of Science (Biomedical Sciences, Integrative Physiology), August, 1998, 42 pp., 1 table, 13 figures, 35 references. Mental task and exercise often occur together. Physiological responses to each of these stressors have been studied independently, yet the interactive effects of these stressors are unknown. Hypothesis: Combined mental and physical stress will produce a synergistic interaction. Methods: Twelve healthy subjects were studied by measuring cardiovascular responses to five minutes of static left handgrip alone (25-35% of maximal handgrip strength), mental arithmetic alone, and combined stimuli in random order. Sympathetic nerve activity (SNA, microneurography), mean arterial blood pressure (MAP, Finapres), heart rate (HR, ECG), and vascular resistance (Doppler) were measured. Results: Physical and combined stressors significantly changed SNA, MAP, HR, and FVR. SNA responses to handgrip and the combined stimuli exceeded responses to mental arithmetic alone (p [less than] 0.05), yet no significant difference existed between responses to handgrip alone and the combined stimuli (p=0.33). The three stimuli increased heart rate similarity (p [less than] 0.0006). Conclusion: The data refuted the hypothesis: mental task did not synergistically interact or even add to the stress response elicited by handgrip exercise. Thus these data suggest that mental task and static exercise interact in a redundant manner.Item Interpreter Narratives: End-Of-Life Conversations in a Pediatric Hospital(2007-10-01) Warren, Corinne Neitzke; Sue LurieWarren, Corinne Neitzke., Interpreter Narratives: End-of-Life Conversations in a Pediatric Hospital. Master of Public Health (Health Interpreting and Health Applied Linguistics), October 2007, 162 pp., bibliography, 74 titles. Aspects of communication between caregivers and patients/families are noted consistently in the literature as important to perceptions of quality of care at the end of life (EOL). Healthcare interpreters, along with providers, can be “deliverers of bad news.” EOL encounters create challenging and unique role and performance demands for interpreters; as active participants in these conversations, interpreters intervene in various ways that impact the communication process. While they may view providers as having the central role in an encounter, aspects of their performance suggest the pivotal nature of their own participation. This exploratory, qualitative research aimed to understand and represent interpreters’ perceptions of the EOL communication they facilitate when providers and pediatric patients and families don’t share language or culture. Their perspectives were revealed in their stories of EOL encounters, as they recounted personal reactions to specific circumstances and conversation exchanges as well as how they handled interpretation in particular situations.Item Investigating the Role of Stress in a Murine Model of Asthma(2008-07-01) Deshmukh, Aniket; Harlan Jones; P. Mathew; Jerry SimeckaThe mechanisms by which stress can exacerbate asthma are still unknown. The purpose of this study was to examine the immunological links between stress controllability and asthma pathogenesis. Our studies reveal specificity of stress control and immune activation resulting in hyper-inflammatory reactions in response to allergic airway challenge. We anticipate that these studies can serve as a translational piece to facilitate clinical studies of stress and asthma prevalence. The purpose of this project was to establish a murine model of stress controllability and demonstrate the impact of stress on the development of immune allergic airway hypersensitivity as a major feature of asthma. I hypothesized that given the ability to control the degree of stress would translate into less severe allergic airway hypersensitivity. We also hypothesized that distinct changes in immune responses generated in response to uncontrolled stress would reflect the extent of airway hypersensitivity. Mice were exposed to daily regimen of uncontrollable stress, controllable stress or no stress concurrently with allergen exposure. Behavioral disposition to stress was monitored in conjunction with evaluation of severity of asthma and immune status. Our results demonstrate that exerting control over stress conditions leads to distinct changes in immunological status corresponding with positive behavioral responses and less disease severity. We anticipate that our studies will facilitate application of stress management in control of immune status as a biomarker for asthma progression.Item Lectures on Conditioned Reflexes Twenty-five Years of Objective Study of the Higher Nervous Activity (Behaviour) of Animals(International Publishers, 1928-01-01) Gantt, W.; Volborth, G.; Cannon, Walter; Pavlov, IvanTranslator's Preface 9 I. P. Pavlov: A Biographical Sketch, By Dr. W. Horsley Gantt . 11 Introduction To The English Translation, By Prof. Walter B. Cannon 33 Author's Preface To The English Translation 35 Preface To The First Russian Edition • 37 Chapter. I. Experimental Psychology And Psycho-Pathology In Animals – 47 II. . The Psychical Secretion Of The Salivary Glands (Complex Nervous Phenomena In The Work Of The Salivary Glands) 61 III. The First Sure Steps Along The Path Of A New Investigation 76 IV. Scientific Study Of The So-Called Psychical Processes In The Higher Animals 81 V. Conditioned Reflexes In Dogs After Destruction Of Different Parts Of The Cerebral Hemispheres 97 VI. The Cortical Taste Centre Of Dr. Gorshkov 99 VII. Mechanism Of The Highest Parts Of The Central Nervous System As Shown From The Study Of The Conditioned Reflexes 100 VIII. Further Advances Of The Objective Analysis Of Complex Nervous Phenomena, And Its Comparison With The IX. Subjective Conception Of These Phenomena • 103 X. Some General Facts About The Cerebral Centres , 115 XI. Natural Science And The Brain 120 XII. The Task And The Arrangement Of A Laboratory For The Study Of The Normal Activity Of The Highest Parts Of The Central Nervous System In The Higher Animals • 131 XIII. A Laboratory For The Study Of The Activity Of The Central Nervous System In The Higher Animals 144 XIV. The Food Centre • 147 XV. Some Fundamental Laws Of The Work Of The Cerebral Hemispheres 156 XVI. Destruction Of The Skin Analyser 165 XVII. The Process Of Differentiation Of Stimulations In The Hemispheres Of The Brain 170 XVIII. Some Principles Of The Activity Of The Central Nervous System As Shown From The Study Of Conditioned Reflexes ; Interaction Of Centres 182 XIX. Summary Of Results Of Removal Of Different Parts Of The Cerebral Hemispheres 193 XX. Internal Inhibition As A Function Of The Cerebral Hemispheres 205 XXI. The Objective Study Of The Highest Nervous Activity Of Animals . 213 XXII. The Study Of The Highest Nervous Activity • 223 XXIII. The Instability (Lability) Of Internal Inhibition In Conditioned Reflexes . 238 XXIV. The Pure Physiology Of The Brain 241 XXV. Some Facts About The Physiology Of Sleep 250 XXVI. An Analysis Of Some Complex Reflexes In The Dog; And The Relative Strength And Tension Of Several Centres 255 XXVII. Physiology And Psychology In The Study Of The Higher Nervous Activity Of Animals 261 XXVIII. The Reflex Of Purpose 275 XXIX. The Reflex Of Freedom 282 XXX. How Psychiatry May Help Us To Understand The Physiology Of The Cerebral Hemispheres 287 XXXI. Hypnotism In Animals 294 XXXII. The Normal Activity And General Constitution Of The Cerebral Hemispheres . 296 XXXIII. Internal Inhibition And Sleep-One And The Same Process 305 XXXIV. Changes In The Excitability Of Various Points Of The Cerebral Cortex As One Of Its Functional Characteristics 319 XXXV. Another Problem In Cerebral Physiology 326 XXXVI. The Latest Successes Of The Objective Study Of The Highest Nervous Activity 329 XXXVII. Relation Between Excitation And Inhibition And Their Delimitations; Experimental Neuroses In Dogs 339 XXXVIII. Effect Of Interrupting The Experimentation In Dogs With Conditioned Reflexes 350 XXXIX. Normal And Pathological States Of The Hemispheres 353 XL. The Inhibitory Type Of Nervous Systems In The Dog 363 XLI. A Physiological Study Of The Types Of Nervous Systems, I.E., Of Temperaments • 370 XLII. Certain Problems In The Physiology Of The Cerebral Hemispheres 379 Bibliography • 395 Index To Names 409 Index To .Subjects 410Item Lifelong vs. Late Life Tocopherol on Learning and Memory in Mice(2004-05-01) McDonald, Shelley R.; Michael Forster; Glenn DillonMcDonald, Shelley R., Lifelong vs. late life tocopherol on learning and memory in mice. Doctor of Philosophy (Biomedical Sciences), May, 2004, 132 pp., 1 table, 14 figures, bibliography, 122 titles. The purpose of these studies was to determine if vitamin E supplementation, a well-studied antioxidant, could improve the cognitive functions of old mice either by preventing age-dependent impairments or reversing age-related dysfunction. Cellular oxidative stress is believed to be a causal factor in senescence, and the brain appears to be particularly susceptible to oxidative damage because of a relatively high rate of reactive oxygen species generation without commensurate levels of antioxidant defenses. If oxidative stress indeed plays a role in age-related brain dysfunction, then it can be predicted that experimental interventions capable of lowering oxidative stress would either prevent or restore function. This was tested using apolipoprotein E-deficient mice, which have an increased susceptibility to neuronal oxidative damage, maintained on 3 different doses (2 mg/kg, 20 mg/kg, or 200 mg/kg/day) of dl-α-tocopheryl acetate (vitamin E) via supplemented food pellets from 8 weeks of age throughout behavioral testing when 6 or 18 mo of age. A separate experiment used wild type mice 24 months of age to examine whether or not a combination of vitamin E (123 mg/kg/day) with coenzyme Q10 (200 mg/kg/day) which leads to higher tissue levels of vitamin E, could improve brain functions in old mice. Mice were tested on multiple behavioral tasks that required utilization of various components of memory and learning, as well as sensorimotor testing. The highest dose of vitamin E prevented the decline of spatial memory in old apolipoprotein E-deficient mice, but did not prevent age-related impairments in learning and memory for discriminated escape. When old wild type mice were treated with the combined vitamin E and coenzyme W10, the mice learned and remembered to avoid a preemptive shock significantly more than old mice treated with vitamin E or coenzyme Q10 alone. A followup experiment with higher doses of coenzyme Q10 alone (250 or 500 mg/kg/day) resulted in no cognitive improvements. No treatments improved sensorimotor performance.Item Maternal Depression as Predictor of Repeat Child Unintentional Injury(2004-12-01) Webster Krause, Lisa Ruth; Lurie, Sue; Gonzalez, AdelaWebster Krause, Lisa Ruth, Maternal Depression as Predictor of Repeat Child Unintentional Injury. Master of Public Health (Community Health), December 2004, 39 pp., 4 tables, references 28 titles. Current literature supports maternal depression as a predictor of child unintentional injury. There have been conflicting results concerning mediating and other risk factors. This study aims to reexamine the link between maternal depression and the occurrence of repeat child unintentional injury in the home. Using the NHIS 2002 data maternal depression was found to predict child repeat unintentional injury in this national sample. It was found that the most predictive model of repeat unintentional injury in this national sample. It was found that the most predictive model of repeat child unintentional injury consisted of maternal depression and low-income. Since maternal depression and low-income have been identified as underlying determinants of child unintentional injury, they should be a priority in prevention efforts so as to more effectively reduce the occurrence of repeat unintentional injury among children in the home.Item Nutrition, Dementia and Depression in an Ambulatory Geriatric Care Center(2005-05-01) Birmingham, John F.; Daisha Cipher; Douglas A. Mains; Thomas J. FairchildBirmingham, John F., Nutritional Risk, Dementia Factors and Depression in an Ambulatory Geriatric Care Center. Master’s of Public Health (Clinical Research), May 2005, 60pp., 7 tables, 2 figures, reference list, 56 titles. Dementia is a major public health problem in the aging population. Depression, nutritional risk and declining self-efficacy are broadly listed risk factors for dementia. Cross-sectional patient data was obtained by chart review of ambulatory community-dwelling elderly patients screened for depression, dementia factors, levels of independence in activities associated with daily living and nutritional risk. The statistical coefficients of the correlational relationships between nutritional risks, dementia factors, depression levels and levels of functional capacity were examined using path analysis. Two models depicted the composite of instrumental activities of daily living items (IADLs), as they related to the dependent variables models, nutritional risk, dementia factors, and depression levels. The model which regressed the IADLs composite variable against depression and dementia factors indicated a good fit (X2=0.00, p=0.01). Attempts to match screening data with diagnostic follow-up data were unsuccessful. Only 12 matches occurred between the GAP and CARE databases (N=256, N=1470).Item Psychological Mechanisms and Physiological Consequences of Panic Attack in Recreational Scuba Diving(1996-12-01) May, Kyle P.; Michael Smith; David BarkerRecreational scuba diving has become increasingly popular in recent years. With the increasing number of participant, the risk associated with the sport needs to be addressed. Some authorities suggest it should be classified as a high-risk sport while others suggest that the dangers of the activity have been down-played due to the commercialization of the diving community. Panic is an important topic in assessing the risk to recreational divers. The National Underwater Accident Center, NUADC, for the period of 1976 to 1988 indicated that 19% of diving fatalities reported involved probable panic. Furthermore, in a sample of 245 male and female divers, 54% experienced panic or near-panic behavior while diving on one or more occasion. The physiological consequences of a panic attack while diving can be deadly. Instructors, physicians and dive students should be made aware of the risk to persons prone to panic attack. Instructors need to be trained in recognizing the manifestations of frank panic during instruction and discourage these students from continuing. More subtle cases of panic disorder must be screened out by a physician while performing a medical clearance physical for a recreational diving student. The physician can make subtle inquiries and through the answers screen out potentially panic prone divers. Such questions as “How many visits to the emergency room have you made?” as opposed to “Have you ever visited the emergency room?” will elicit a more complete history versus a blanket denial of previous illness or injury. The nature of the E.R. visits will often be revealing to the astute physician. Persons with histories of asthma attacks or hyperventilation syndrome may indicate an underlying panic disorder. The students themselves need to be warned of the hazards of diving if panic prone. The idea needs to be stressed in scuba diving books and manuals much more than it is currently. For example, one of the most popular scuba diving books, The Encyclopedia of Recreational Diving, does not cover panic or the problems that can result due to panic. If this concept is made clear to students while in class, those prone to panic episodes may then self-screen themselves and discontinue a scuba class thereby avoiding injury or death. Scuba diving should be considered a high-risk sport and participants screened for such activity. Not only does a panicked diver put himself in jeopardy, he risks the lives of others in a group with the loss of cognitive abilities seen during panic. Individuals with elevated anxiety levels are more likely to experience a panic episode while diving due to the number of stressors involved in the sport. These persons should be selectively screened out and encouraged to find other avenues for recreation.Item Rural Vs. Urban Residents and Obesity in Texas(2005-05-01) Ohagi, Emeka J.; Ty Borders; Peter Hilsenrath; Kathryn CardarelliOhagi, Emeka J., Rural vs. Urban Residents and Obesity in Texas. Master of Public Health (Health Informatics), May 2005, 52 pp., 3 tables, bibliography, 90 titles. Obesity in the United States has been described as an epidemic and Texas has been identified as one of the most obese states in the country. The purpose of this study is to examine obesity among Texas adults in order to determine if there are differences in obesity levels based on residence, and to explore the influence of other demographic, socioeconomic, health and behavioral factors on the distribution of obesity. Results indicate that urban and suburban dwellers are less likely than rural dwellers to be obese (adj. OR=0.64; 0.68, respectively). However, residents of frontier communities have slightly higher odds of obesity (adj. OR=1.09) than rural residents. Age was found to be an important factor in obesity. It is hoped that these and other results will facilitate appropriate channeling of public health response.