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Dive into the research topics where Laura J. Tivis is active.

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Featured researches published by Laura J. Tivis.


Journal of Traumatic Stress | 2002

Coping, functioning, and adjustment of rescue workers after the Oklahoma City bombing

Carol S. North; Laura J. Tivis; J. Curtis McMillen; Betty Pfefferbaum; Jann Cox; Edward L. Spitznagel; Kenneth Bunch; John K. Schorr; Elizabeth M. Smith

Studies have not previously considered postdisaster adjustment in the context of psychiatric disorders. After the Oklahoma City bombing, a volunteer sample of 181 firefighters who served as rescue and recovery workers was assessed with a structured diagnostic interview. The firefighters had relatively low rates of posttraumatic stress disorder (PTSD) and described little functional impairment, positive social adjustment, and high job satisfaction. PTSD was associated with reduced job satisfaction and functional impairment, providing diagnostic validity. Turning to social supports, seeking mental health treatment, and taking medication were not widely prevalent coping responses. Postdisaster alcohol use disorders and drinking to cope were significantly associated with indicators of poorer functioning. Surveillance for problem drinking after disaster exposure may identify useful directions for intervention.


Annals of Clinical Psychiatry | 2004

The course of posttraumatic stress disorder in a follow-up study of survivors of the Oklahoma City bombing

Carol S. North; Betty Pfefferbaum; Laura J. Tivis; Aya Kawasaki; Chandrashekar Reddy; Edward L. Spitznagel

BACKGROUND The course of posttraumatic stress disorder (PTSD) in populations directly exposed to terrorist attacks is of major importance in the post-9/11 era. Because no systematic diagnostic studies of the most highly exposed individuals of the 9/11 terrorist attacks have yet been done, the Oklahoma City bombing remains a unique opportunity to examine PTSD over time in high-exposure terrorist victims. METHODS This study assessed 137 survivors in the direct path of the explosion at approximately 6 and 17 months postdisaster, using the Diagnostic Interview Schedule. RESULTS Combined index and follow-up data yielded a higher (41%) incidence of PTSD than detected at index (32%) or follow-up (31%). All PTSD was chronic (89% unremitted at 17 months) with no delayed-onset cases. The avoidance and numbing symptom group C, unlike groups B and D alone, was pivotal to current PTSD status and was associated with indicators of functioning at index and follow-up. The findings at index were sustainable. CONCLUSIONS This follow-up study confirmed the immediacy of onset of PTSD and its persistence over time, pointing to the need for early interventions that continue over the long term. Group C avoidance and numbing symptoms may aid in early recognition of PTSD and in predicting long-term functioning.


Progress in Neuro-psychopharmacology & Biological Psychiatry | 2005

Saliva versus serum estradiol: implications for research studies using postmenopausal women.

Laura J. Tivis; Michelle D. Richardson; Erica Peddi; Bahram H. Arjmandi

OBJECTIVE The authors investigated saliva as a potentially reliable medium for estradiol (E2) measurements in postmenopausal women. The goal of this study was to determine whether or not saliva could be used in studies of postmenopausal women in place of serum samples. Specifically, the authors wondered whether or not saliva and serum E2, obtained simultaneously from samples collected from postmenopausal women, would correlate. DESIGN Samples of saliva and serum were collected simultaneously from 43 postmenopausal women. 31 were regular users of estrogen therapy (ET), 12 used no ET. Pearsons correlation coefficients were conducted to determine the degree of relationship between saliva and serum samples among ET users and non-users. RESULTS Among ET users saliva and serum E2 levels were significantly and positively correlated (r = 0.81, p < 0.0001). The two E2 values were not significantly correlated among ET non-users (r = 0.32, p < 0.31). CONCLUSIONS These data suggest that saliva E2 may be a fairly robust predictor of serum E2, but only among postmenopausal women who use ET.


Alcoholism: Clinical and Experimental Research | 2003

Alcohol, estrogen replacement therapy, and visuospatial processes in postmenopausal women.

Laura J. Tivis; Michelle D. Green; Sara Jo Nixon; Rick Tivis

BACKGROUND Studies suggest that moderate drinking may benefit cognition and the effect may favor women. This study investigated effects of moderate drinking on visuospatial functioning in postmenopausal women. Visuospatial processes are sensitive to alcohol abuse and are thought to be sensitive to hormonal fluctuations. Three questions were posed in order to: explore visuospatial processes in moderate-drinking and abstaining postmenopausal women, assess visuospatial differences in women using no estrogen replacement therapy (No-ERT), ERT alone (ERT-only), and ERT with progestin (ERT+Pro), and identify alcohol/ERT interactions associated with visuospatial performance. METHODS Two hundred fourteen postmenopausal women participated (75 No-ERT; 63 ERT-only; 76 ERT+Pro. All were moderate drinkers or teetotalers and all received the Block Design test from the Wechsler Adult Intelligence Scale-Revised. A raw score was calculated and progress at 30-sec intervals was assessed. RESULTS ANOVA revealed an alcohol main effect [F(3,202) = 4.74; p < 0.004] on 60- to 120-sec change scores. Teetotalers had significantly smaller change scores (less improvement) compared with all levels of drinkers. ANOVA on design 9 (the most difficult trial) revealed an ERT main effect [F(3,202) = 4.37; p < 0.02]. ERT nonusers scored significantly lower than ERT-only and ERT+Pro groups. A design 9 trend toward an alcohol x ERT interaction was noted [F(6,202) = 1.93; p < 0.08], and a design 9 time x alcohol interaction was revealed [F(6,404) = 2.65; p < 0.02]. CONCLUSIONS These data suggest that moderate drinking may be positively associated with visuospatial processes in postmenopausal women. They also suggest that ERT, alone and with progestin, is positively associated with visuospatial processes, but only when the task is difficult. These findings support Kaplans assertion that subtle performance deficits may not be detectible with traditional endpoint measures. A provocative alcohol x ERT trend suggests that alcohol consumption should be considered in studies of ERT effects on cognitive ability.


Assessment | 2001

Estrogen replacement therapy: a perspective on cognitive impact.

Laura J. Tivis; Sara Jo Nixon; Michelle D. Green

Studies suggest that use of estrogen replacement therapy (ERT) after menopause may be beneficial toward preservation of cognitive functioning. However, potentially confounding variables such as alcohol consumption are typically not systematically considered. The purpose of this study was to determine whether ERT users and nonusers differ with regard to memory and concentration ability when potential confounds are eliminated. Alcohol consumption was included as an independent variable so that ERT by alcohol interactions could be examined. One-hundred-sixty-two postmenopausal women participated in the study and were classified as moderate drinkers or teetotalers. Logical Memory (Wechsler Memory Scale-Revised), Digit Span (Wechsler Adult Intelligence Scale-Revised) and the Cognitive Symptom Checklist-Memory subscale were administered. No main effects of ERT were found. However, ERT by alcohol interactions among some Digit Span Forward variables were observed. We conclude that confounding variables such as alcohol consumption, may be at least partly responsible for observed differences in cognition commonly attributed to ERT.


Brain Injury | 2007

Traumatic brain injury state planning grant: Preparing for change in a rural state

Russell C. Spearman; B. Hudnall Stamm; Laura J. Tivis

Purpose: The overarching purpose of this work was to generate a framework on which to build a traumatic brain injury (TBI) system-support action plan for individuals with a TBI living in a rural state. Methods: Four research questions were posed aimed at describing rural service/support needs and service satisfaction among persons with a TBI, as well as rural service/support availability as defined by providers. One hundred and ninety-four providers/agencies and 250 individuals/family members completed one of two versions (provider/agency, individual/family member) of a Needs and Resources Assessment. Results: Data analyses indicated that the majority of individual respondents lived at an impoverished income level and lived with a TBI for ∼12 years. Quality of life was perceived as significantly lower after the TBI than before. Employment decreased significantly following a TBI. Reasons for unemployment included a perceived inability to work, problems regarding proper accommodation and/or perceptions regarding being chosen as suitable job candidates. Conclusions: Provider data confirmed that many important services are rarely available or specific to TBIs. Basic assistance with employment, cognitive training and occupational therapy were among those most needed. Paradoxically, a high proportion of individuals reported feeling satisfied with most services. Applications of these data along with recommendations for other rural states are described.


Journal of Ethnicity in Substance Abuse | 2012

Latino/as in Substance Abuse Treatment: Substance Use Patterns, Family History of Addiction, and Depression

Julio I. Rojas; Gene Hallford; Michael W. Brand; Laura J. Tivis

This study describes a sample of Latino/as in substance abuse treatment. We were interested in substance use patterns, gender differences, family history of addiction, and depression. Questionnaires completed by Latino/as (N = 209) were identified from 12,000 sets completed by participants in treatment from 1993–2003. Significant gender differences emerged, with Latinas reporting higher rates of stimulant abuse and depression. A family history of substance use disorders in primary or secondary family members was reported by 91% of participants. These data suggest that understanding gender differences related to substance use and depression among Latino/as in treatment warrants attention.


Psychology of Addictive Behaviors | 1999

Cognitive efficiency in alcoholics and polysubstance abusers: Family history revisited.

Laura J. Tivis; Rick Tivis; Sara Jo Nixon

The primary aim of this study was to evaluate the role of family history (FH) on cognitive efficiency by means of 4 different FH classificatio n schemes. Sixty alcoholics, 64 polysubstance abusers, and 67 controls participated. No effects of FH were found for any of the 4 FH classification strategies. However, main effects of group were found, providing evidence that the clinical samples were representative of those from previous studies. These data support those of other investigators and suggest that having an FH of alcoholism cannot account for cognitive impairment among chronic alcoholics. It has been well established that chronic alcoholics perform poorly relative to nonalcoholic controls on tests of neuropsycholo gical performance. Whereas some studies have found neuropsychological impairment among alcoholics with a family history of alcoholism (FH+;


Alcoholism: Clinical and Experimental Research | 2008

One-per-Occasion or Less: Are Moderate-Drinking Postmenopausal Women Really Healthier Than Their Nondrinking and Heavier-Drinking Peers?

Laura J. Tivis; Rick Tivis

BACKGROUND While some reported benefits of moderate drinking are thought to be the direct results of physiological mechanisms associated with consumption, other effects may be attributable to mediating factors. Both explanations suggest that moderate drinkers may be healthier than nondrinking and heavier-drinking peers. The purpose of this study was to determine whether moderate-drinking postmenopausal women report healthier dietary and exercise patterns, and whether they demonstrate better physiological functioning compared with peers. This study also aimed to describe patterns of relationships between alcohol and measures of general health functioning in postmenopausal women. METHODS One-hundred and fifteen women aged 50 to 65 participated. Participants completed alcohol interviews, diet and exercise questionnaires, and bone density examination. Blood pressure, height, and weight were assessed, and blood was collected to conduct basic chemistry and complete blood count tests. RESULTS Postmenopausal moderate drinkers failed to demonstrate healthier dietary or exercise habits, and did not exhibit significantly better health-functioning compared with peers. They did evidence positive associations between drinking and healthy behavior, and between drinking and cardiovascular health. Relationships between alcohol and blood analytes differed between drinking groups, some of which suggested possible negative health consequences for higher-end drinkers in both drinking groups. CONCLUSIONS These data suggested that moderate-drinking postmenopausal women are not significantly healthier than their non- or heavier-drinking peers, but may drink as part of a larger effort to take care of their health. Despite this, even 1-drink-per-drinking-day moderate drinkers may have tendencies toward unhealthy conditions. Limitations include small sample size, inability to assess specific cardiac risk and socioeconomic status, small number of correlations, and clinical relevance of analyte values.


Neuropsychobiology | 2008

Alcohol and Estrogen Replacement Therapy in Postmenopausal Women

Laura J. Tivis; Natalie A. Ceballos; Garvin Chastain; Rick Tivis

The literature remains contentious regarding the separate and combined effects of moderate drinking and estrogen replacement therapy (ERT) on cognition. In the current study, the authors sought to disentangle the predictive utility of alcohol use, ERT and their interaction on the episodic and semantic memory stores of postmenopausal women. It was predicted that relationships between moderate drinking, ERT and cognition would be attenuated by demographic and health-related factors. Postmenopausal women (n = 298) completed a battery of cognitive tests designed to assess speed and accuracy of episodic and knowledge-based cognitive processing. Potentially confounding variables were categorized and tested as mediators in hierarchical regression analyses. Moderate drinking was a weak predictor of episodic availability prior to removal of potential mediators. ERT use was a significant predictor of episodic and knowledge-based availability; no mediators were identified. Alcohol moderated ERT, as a combined alcohol/ERT variable was shown to be related to cognition. Neither moderate drinking nor ERT use was associated with cognitive speed. These findings suggest that positive relationships between alcohol and cognition are likely mediated by other variables, and should not be regarded as a benefit of drinking. Further, results support ERT as a predictor of knowledge-based and episodic availability, independent of mood stabilization or socioeconomic influences. Finally, alcohol and ERT appear to interact to impact both episodic and knowledge-based performance.

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Rick Tivis

University of Oklahoma Health Sciences Center

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Oscar A. Parsons

University of Oklahoma Health Sciences Center

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Betty Pfefferbaum

Washington University in St. Louis

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Carol S. North

University of Texas Southwestern Medical Center

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Edward L. Spitznagel

Washington University in St. Louis

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Elizabeth M. Smith

Washington University in St. Louis

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Jann Cox

Washington University in St. Louis

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