Psychology Commons^™

Neuroanatomical Substrates Of The Disruptive Effect Of Olanzapine On Rat Maternal Behavior As Revealed By C-Fos Immunoreactivity, Changjiu Zhao, Ming Li

Department of Psychology: Faculty Publications

Olanzapine is one of the most widely prescribed atypical antipsychotic drugs in the treatment of schizophrenia. Besides its well-known side effect on weight gain, it may also impair human parental behavior. In this study, we took a preclinical approach to examine the behavioral effects of olanzapine on rat maternal behavior and investigated the associated neural basis using the c-Fos immunohistochemistry. On postpartum Days 6–8, Sprague-Dawley mother rats were given a single injection of sterile water or olanzapine (1.0, 3.0 or 5.0 mg/kg, sc). Maternal behavior was tested 2 h later, after which rats were sacrificed and brain tissues were collected. …

Which Study Method Works Best? A Comparison Of Soar And Sq3r For Text Learning, Sarah C. Kasson

College of Education and Human Sciences: Dissertations, Theses, and Student Research

One hundred thirty-eight college students participated in a study comparing the SOAR (Select, Organize, Association, Regulate) and SQ3R (Survey, Question, Read, Recite, Review) study systems to each other and to students’ preferred study methods. Though both systems have been researched independently, just one other study has compared these study systems to each other. College students were assigned randomly to one cell of a 2x2 factorial design (method: SOAR or SQ3R; material: supplement or no supplement) or to a preferred-study-method control group. Groups were trained in their respective system (SOAR, SQ3R, or control) and then given materials about educational measurement to …

Spectrum Of Acute Clinical Characteristics Of Diagnosed Concussions In College Athletes Wearing Instrumented Helmets, Ann-Christine Duhaime,, Jonathan G. Beckwith, Arthur C. Maerlender, Thomas W. Mcallister, Joseph J. Crisco, Stefan M. Duma, P. Gunnar Brolinson, Steven Rowson, Laura A. Flashman, Jeffrey J. Chu, Richard M. Greenwald

Department of Psychology: Faculty Publications

Object. Concussive head injuries have received much attention in the medical and public arenas, as concerns have been raised about the potential shortand long-term consequences of injuries sustained in sports and other activities. While many student athletes have required evaluation after concussion, the exact definition of concussion has varied among disciplines and over time. The authors used data gathered as part of a multiinstitutional longitudinal study of the biomechanics of head impacts in helmeted collegiate athletes to characterize what signs, symptoms, and clinical histories were used to designate players as having sustained concussions.

Methods. Players on 3 college …

Congruence Within The Parent-Teacher Relationship: Associations With Children’S Functioning, Elizabeth Moorman Kim, Kathleen M. Minke, Susan M. Sheridan, Natalie A. Koziol, Ji Hoon Ryoo, Kristin M. Rispoli

Nebraska Center for Research on Children, Youth, Families, and Schools: Faculty Publications

Meaningful interactions between families and schools benefit multiple facets of children’s functioning including their academic, social, and behavioral adjustment (Christenson & Sheridan, 2001).

Positive relationships between parents and teachers predict children’s enhanced social-emotional functioning and academic adjustment across time (Izzo, Weissberg, Kasprow, & Fendrich, 1999).

Studies of parent-teacher relationships often focus on the association of child outcomes with separate parent or teacher reports of their relationship quality. Little attention has focused on the congruence of perceptions within parent-teacher dyads.

It may be the case that when parents and teachers view their relationship in a similar positive light, better connections or …

The Role Of Emotional Reactivity, Self-Regulation, And Puberty In Adolescents' Prosocial Behaviors, Gustavo Carlo, Lisa J. Crockett, Jennifer M. Wolff, Sarah J. Beal

Department of Psychology: Faculty Publications

This study was designed to examine the roles of emotional reactivity, self-regulation, and pubertal timing in prosocial behaviors during adolescence. Participants were 850 sixth graders (50% female, Mean age = 11.03, SD = .17) who were followed up at age 15. In hierarchical regression models, measures of emotional reactivity, self-regulation, pubertal timing and their interactions were used to predict (concurrently and over time) adolescents’ prosocial behaviors in the home and with peers. Overall, the findings provide evidence for pubertal and temperament based predictors of prosocial behaviors expressed in different contexts. Self-regulation was positively related to both forms of prosocial behavior, …

Serotonin System Gene Polymorphisms Are Associated With Impulsivity In A Context Dependent Manner, Scott F. Stoltenberg, Christa C. Christ, Krista B. Highland

Department of Psychology: Faculty Publications

Impulsivity is a risk factor for adverse outcomes and characterizes several psychiatric disorders and risk for suicide. There is strong evidence that genetic variation influences individual differences in impulsivity, but the details are not yet understood. There is growing interest in better understanding the context dependency of genetic effects that is reflected in studies examining gender specificity, gene × environment interaction and epistasis (gene-gene interaction). In a cross-sectional study we examined whether polymorphisms in six serotonin system candidate genes and the experience of early life trauma (age 0–12) were associated with individual differences in impulsivity in a nonclinical sample of …

Drug–Drug Conditioning Between Citalopram And Haloperidol Or Olanzapine In A Conditioned Avoidance Response Model: Implications For Polypharmacy In Schizophrenia, Nathan L. Sparkman, Ming Li

Department of Psychology: Faculty Publications

Patients with schizophrenia often have anxiety and depression, and thus are treated with multiple psychotherapeutic medications. This practice of polypharmacy increases the possibility for drug–drug interactions. However, the pharmacological and behavioral mechanisms underlying drug–drug interactions in schizophrenia remain poorly understood. In the present study, we adopted a preclinical approach and examined a less known behavioral mechanism, drug–drug conditioning (DDC) between haloperidol (a typical antipsychotic) or olanzapine (atypical antipsychotic) and citalopram (a selective serotonin reuptake inhibitor). A rat two-way conditioned avoidance response paradigm was used to measure antipsychotic activity and determine how DDC may alter the antipsychotic efficacy in this model. …

Neural Responses To Infants Linked With Behavioral Interactions And Testosterone In Fathers, Patty X. Kuo, Joshua Carp, Kathleen C. Light, Karen M. Grewen

Department of Child, Youth, and Family Studies: Faculty Publications

Few fMRI studies have investigated the brain-behavioral basis of parenting in human fathers. Ten fathers were videotaped and gave salivary testosterone samples while interacting with their 2–4 month old infants, and viewed video clips of their own infant and an unfamiliar age-, ethnicityand sex-matched other infant during an fMRI protocol. Infant stimuli activated a network of prefrontal and subcortical brain regions. Furthermore, a subset of these regions activated significantly more to own (OWN) than other (OTHER) infants. Finally, neural responses to OWN versus OTHER were linked with paternal sensitivity, paternal reciprocity, and testosterone. In sum, our results provide a novel …

The Reminiscence Effect In Autobiographical Memory And Tests Of Its Prominent Accounts, Justin T. Coleman

Department of Psychology: Dissertations, Theses, and Student Research

The reminiscence effect, in which people aged 40 and over remember more autobiographical memories from between ages 10 to 30 than from adjacent periods, producing a “bump” in lifespan distributions, is a highly robust effect. When it was discovered to occur for highly positive emotional memories, but not negative ones, the cultural life script account of reminiscence was proposed. The cultural life script account asserts that individuals possess scripts for important events in the normative life that structure autobiographical recall. The reminiscence effect is explained by the fact that in life scripts, positive events have highly prescribed timings and cluster …

Correlates Of Same-Sex Attractions And Behaviors Among Self-Identified Heterosexual University Students, Luis F. Morales Knight, Debra A. Hope

Department of Psychology: Faculty Publications

Few studies have focused on intragroup variations in sexual orientation and fewer on self-identified heterosexuals with same-sex attractions, fantasies, and/or behaviors. Self-identified heterosexual students at a large public midwestern university (N = 263) completed measures of sexuality and gender, attitudes toward lesbian, gay, and bisexual (LGB) people, religious and political beliefs, emotional well-being, and demographics. The sample included 82 individuals (31%; labeled “H+”) who endorsed same-sex attraction, fantasy, and/or behavior and 181 (69%; labeled “H”) who did not. Women were more likely to be categorized as H+ than men. H+ participants had more positive attitudes toward lesbians and gay …

The Impact Of Distractor Duration On Spatial Working Memory In Early Childhood, Brian Keiser

College of Education and Human Sciences: Dissertations, Theses, and Student Research

Spatial attention appears to act as a rehearsal mechanism in spatial working memory (Awh, 1999; Awh & Jonides, 2001) as adults have trouble maintaining spatial information in their mind when required to shift their attention to locations unrelated to the to-be-retained location. Futhermore, adults increase intentional directed attention to the to-be remembered location when warned ahead of time that distractors will be present during the memory delay (Awh, 2003). Our initial study looked at the presence of a distractor and its impacts on spatial working memory in children. We found that the distractor did impact three and six year old …

Parametric Studies Of Antipsychotic-Induced Sensitization In The Conditioned Avoidance Response Model: Roles Of Number Of Drug Exposure, Drug Dose, And Test–Retest Interval, Natashia Swalve, Ming Li

Department of Psychology: Faculty Publications

Repeated haloperidol and olanzapine treatment produces an enhanced disruption of avoidance responding, a validated measure of antipsychotic activity. Experimental parameters affecting this sensitization-like effect have not been thoroughly examined. The present study investigated the role of three parameters (number of injections, dose, and interval between initial exposure and challenge) in antipsychotic sensitization in the conditioned avoidance response paradigm. Well-trained Sprague–Dawley rats received different numbers of drug treatment (1–5 days) or different doses of haloperidol (0.025–0.10 mg/kg, subcutaneously) or olanzapine (0.5–2.0 mg/kg, subcutaneously). After certain time intervals (4, 10 or 17 days), they were tested for the expression of haloperidol or …

A Test Of A Conceptual Model Of Sexual Self-Concept And Its Relation To Other Dimensions Of Sexuality, Arielle R. Deutsch

Department of Psychology: Dissertations, Theses, and Student Research

One theoretical concept that has received modest attention in contemporary sexuality research is the sexual self, particularly focusing on sexual self-concept (SSC). While research on the sexual self has expanded over the past 20 years, there is a lack of cohesion within this research that has culminated in a collection of SSC models that, while sharing certain factors, are dissimilar from each other. Therefore a unified conceptual model of SSC needs to be empirically established. Additionally, little research has examined potential differences between genders in how SSC is expressed, as most SSC research focuses exclusively on women. Finally, understanding of …

Making A Large Class Feel Small Using Social Psychology: Introducing Teams To Improve Performance And Learning In A Large-Enrollment Course, Bethany Johnson

Department of Psychology: Dissertations, Theses, and Student Research

Large-enrollment lecture-based classes are increasingly common in higher education. As an alternative approach, active learning methods are meant to develop academic skills and improve understanding of course content. Group work is an effective form of active learning, but students typically despise it. Social psychological small group theory can inform teachers about the characteristics of small groups that influence their capability to improve learning, so that teachers can design more effectual group work for their classes. This study examined what effect introducing permanent teams into a large enrollment class had on students’ sense of classroom community and their learning outcomes, using …

Psychotherapy Clients’ Online Behavior And Opinions Regarding Internet Searches Conducted By Therapists, Emily B. Gale

Department of Psychology: Dissertations, Theses, and Student Research

The Internet has become possibly the most popular medium to find information and communicate in our society. For the field of psychology, the Internet offers a new way to collect data and communicate with both study participants and, for practicing psychologists, possibly clients. Little is known, however, about the implications of interacting with clients online. The existing empirical studies in this area (DiLillo & Gale, 2011; Lehavot, Barnett, & Powers, 2010; Taylor et al., 2010) have focused on psychology graduate students’ actions online. These studies highlight the importance and paucity of research regarding the online behaviors of psychotherapy clients and …

The Relation Between High-Quality Prekindergarten Classroom Environments And Literacy Outcomes For Students Learning English As A Second Language, Allison Q. Osborn

College of Education and Human Sciences: Dissertations, Theses, and Student Research

U. S. students’ early English literacy skills are critical for their later reading and subsequent school success (e.g., Badian, 2000; Collins, 2010; Molfese et al., 2001; Storch & Whitehurst, 2002). Children’s literacy skills are stronger when they attend high-quality prekindergarten classrooms, especially classrooms with strong instructional supports (Hamre & Pianta, 2005). Moreover, some research has suggested that students who enter school with the weakest skills and with higher risk of academic difficulty (including students who speak English as a second language) benefit the most from high-quality instruction and interactions in early literacy and reading (Connor, Morrison, & Petrella, 2004; Downer …

Autism Spectrum Disorders In Hispanics And Non-Hispanics, Virginia Chaidez, Robin L. Hansen, Irva Hertz-Picciotto

Department of Nutrition and Health Sciences: Faculty Publications

Objectives: To compare differences in autism between Hispanics and non-Hispanics. We also examined the relationship between multiple language exposure and language function and scores of children. Methods: The Childhood Autism Risks from Genetics and the Environment (CHARGE) study is an ongoing population-based case-control study with children sampled (n = 1061) from three strata: those with autism (AU) or autism spectrum disorder (ASD); developmental delay (DD); or the general population (GP). Results: Non-Hispanic cases demonstrated higher cognitive composite scores for the Mullen Scales of Early Learning (MSEL). There were significant associations between multiple language exposure and MSEL subscales for receptive …

Portuguese Translation And Validation Of The Revised Dyadic Adjustment Scale, Cody S. Hollist, Olga G. Falceto, Luciane M. Ferreira, Richard B. Miller, Paul R. Springer, Carmen L. C. Fernandes, Nalu A. Nunes

Department of Child, Youth, and Family Studies: Faculty Publications

The absence of a translated and validated instrument for measuring marital satisfaction in Brazil, the largest country in South America and fifth most populous country in the world, is a significant barrier for research and mental health service delivery. The purpose of this study was to translate and validate a marital satisfaction scale into Portuguese that would have both empirical credibility and cultural relevance in Brazil. A six-step serial approach was used to simultaneously translate and culturally validate the Revised Dyadic Adjustment Scale (RDAS). The translated instrument (RDAS-P) demonstrated good psychometric properties during field testing.

Dimensions Of Individuals' Judgements About Sexual Attraction, Romantic Attachment, And Sexual Orientation, Luis F. Morales Knight

Department of Psychology: Dissertations, Theses, and Student Research

Despite 150 years of scientific interest in sexual orientation, contemporary investigators grapple with a number of serious difficulties. A precise, unified definition of sexual orientation appropriate for scientific use continues to elude researchers, most likely because there is still no single coherent theory of sexual orientation. This lack impedes research into the measurement of sexual orientation. Existing measurements of sexual orientation rely on partial or incompletely empirical research. The present study identified promising avenues for development of credible definitions, theories, and measurements of sexual orientation: (a) mate-selection tasks; (b) the idea that bisexually-identified individuals place a lower priority on partner …

The Role Of Engagement Across Conceptually Distinct Treatment Elements For Social Anxiety Disorder, Timothy M. Emge

Department of Psychology: Dissertations, Theses, and Student Research

There are currently several efficacious treatments for social anxiety disorder (e.g. exposure therapy and cognitive therapy). Each of these treatments is thought to reduce symptoms of social anxiety by disrupting maintenance mechanisms of the disorder, yet mechanism of change research has not supported this view. The current study compared components from each therapy modality in order to better understand why symptoms reduce similarly between conceptually distinct treatments. Participants with high social anxiety were randomly assigned to give a speech with cognitive restructuring and engagement-enhancing procedures, cognitive preparation and video feedback, or a speech alone. Self-ratings of speech performance, confidence in …

Generativity In Young Adults: Comparing And Explaining The Impact Of Mentoring, Lindsay J. Hastings

Department of Educational Administration: Dissertations, Theses, and Student Research

The purpose of this embedded explanatory sequential mixed methods study was to examine the impact of mentoring relationships on generativity in college students. Generativity refers to concern for establishing and guiding the next generation The first, quantitative phase compared generatvity levels among general college students, college student leaders who do not mentor, and college student leaders who mentor through a program called Nebraska Human Resources Institute (NHRI) at the University of Nebraska – Lincoln. Data were collected via surveys (N = 273) using the Loyola Generativity Scale (LGS), the Generativity Behavior Checklist (GBC), and the Personal Strivings measure. A multivariate …

Promoting Healthy Body Image In College Men: An Evaluation Of A Psychoeducation Program, Justin Henderson

College of Education and Human Sciences: Dissertations, Theses, and Student Research

Current psychological research indicates that men are increasingly dissatisfied with their bodies (e.g., McCabe & Ricciardelli 2004; Olivardia, Pope, Borowiecki, & Cohane, 2004). The consequences of body image concerns range from mild discontent (e.g., body dissatisfaction) to the more pathological (e.g., muscle dysmorphic disorder, steroid use, and eating disorders). College-age men are at particular risk of body image disturbances. Drawing from body image research and theory, a one session prevention intervention was designed for college men to address this growing concern. The prevention intervention was intended to serve as a preliminary step into men’s body image prevention programming. The intervention …

Methods And Baseline Characteristics Of A Randomized Trial Treating Early Childhood Obesity: The Positive Lifestyles For Active Youngsters (Team Play) Trial, Marion Hare, Mace Coday, Natalie A. Williams, Phyllis Richey, Frances Tylavsky, Andrew Bush

Department of Child, Youth, and Family Studies: Faculty Publications

There are few effective obesity interventions directed towards younger children, particularly young minority children. This paper describes the design, intervention, recruitment methods, and baseline data of the ongoing Positive Lifestyles for Active Youngsters (Team PLAY) study. This randomized controlled trial is designed to test the efficacy of a 6-month, moderately intense, primary care feasible, family-based behavioral intervention, targeting both young children and their parent, in promoting healthy weight change.

Participants are 270 overweight and obese children (ages 4 to 7 years) and their parent, who were recruited from a primarily African American urban population. Parents and children were instructed in …

Cogtool-Helper: Leveraging Gui Functional Testing Tools To Generate Predictive Human Performance Models, Amanda Swearngin

Department of Computer Science and Engineering: Dissertations, Theses, and Student Research

Numerous tools and techniques for human performance modeling have been introduced in the field of human-computer interaction. With such tools comes the ability to model legacy applications. Models can be used to compare design ideas to existing applications, or to evaluate products against those of competitors. One such mod- eling tool, CogTool, allows user interface designers and analysts to mock up design ideas, demonstrate tasks, and obtain human performance predictions for those tasks. This is one step towards a simple and complete analysis process, but it still requires a large amount of manual work. Graphical user interface (GUI) testing tools …

Love Means Never Having To Say You're Sorry, But What About Malpractice? A Look At Verbal And Nonverbal Factors Affecting Perceptions Of Apologies In A Medical Malpractice Case, Sarah Thimsen

Department of Psychology: Dissertations, Theses, and Student Research

Apologies are part of daily life and occur in a variety of contexts. A large body of literature on the effects of apologies indicated that apologies have a positive effect – those receiving apologies have more positive views of the transgressor (e.g., Bornstein, Rung, & Miller, 2002; Goei, Roberty, Meyer, & Carlyle, 1997; Robbennolt, 2003; Sitkin & Beis, 1993; Takaku, 2000). An area of emerging research in the realm of apologies is in the area of medical malpractice. The research presented here sought to expand on the field of apologies, specifically by examining the effects of an apology in a …

Adolescent Decision Making And Risk Behavior: A Neurobiological Approach, Jennifer M. Wolff

Department of Psychology: Dissertations, Theses, and Student Research

In this study, the neurobiological theory of adolescent decision making and risk taking and the dual-process decision making theory were tested in a sample of college students. Participants responded to questions in a survey about decision making style, socio-emotional processes, cognitive control processes, and deviant peers. The goals of the research were to test the relation between decision making processes (intuitive and deliberative) and risk behaviors, to test the potential overlap between intuitive and deliberative decision making as described in the more traditional dual-process models and the socio-emotional and cognitive control systems of the neurobiological model, and to extend the …

Teachers Engaging Parents As Tutors To Improve Oral Reading Fluency, Sara Kupzyk

College of Education and Human Sciences: Dissertations, Theses, and Student Research

This dissertation examined the application of evidence-based tutoring for oral reading fluency (ORF) to a natural setting, using teachers as parent trainers. Measures used to determine the impact of parent tutoring included treatment integrity, student reading outcomes, attitudes towards involvement and reading, and social validity. Six teachers (second through fourth grade) were trained in a 3-hour workshop to develop individualized tutoring programs with parents. Following training, the teachers trained seven parents and students to use individualized tutoring programs. Training followed a behavior skills training model and incorporated video modeling and printed instructions to increase efficiency. A multiple-baseline design was used …

Effects Of Symptom Presentation Order On Perceived Disease Risk, Virginia S. Y. Kwan, Sean P. Wojcik, Talya Miron-Shatz, Ashley M. Votruba, Christopher Y. Olivola

Department of Psychology: Faculty Publications

People are quick to perceive meaningful patterns in the co-occurrence of events. We report two studies exploring the effects of streaks in symptom checklists on perceived personal disease risk. In the context of these studies, a streak is a sequence of consecutive items on a list that share the characteristic of being either general or specific. We identify a psychological mechanism underlying the effect of streaks in a list of symptoms and show that the effect of streaks on perceived risk varies with the length of the symptom list. Our findings reveal a tendency to infer meaning from streaks in …

Motivation & Loss Aversion In The Health Savings Account Paradigm, Michael Holtje

Department of Psychology: Dissertations, Theses, and Student Research

This investigation examined the role of “loss aversion” and consumers’ motivational orientations in the context of healthcare purchasing under the individual account paradigm and the defined benefit (insurance) paradigm. Specifically, this dissertation investigated (1) whether Health Savings Accounts (HSAs) encourage more prudent health care spending compared to traditional health insurance plans and (2) the impact of individuals' motivational preferences (either towards “gains” or towards “losses”) between decision tasks under each type of health plan.

Three experiments varied the type of healthcare plan that consumers had and the manner in which they received information (either as a “gain” or “loss”). The …

The Historical, Jurisprudential, And Empirical Wisdom Of Parental Responsibility Laws, Eve M. Brank, Leroy Scott

Department of Psychology: Faculty Publications

The parent-child relationship is woven deep within historical and contemporary culture, but strong retributive ideals have led to blaming parents because of their presumed vicarious role in juvenile crime. The current article will discuss the history, forms, legal challenges, and empirical research related to parental involvement laws in the United States. The parent-child relationship provides the historical framework behind the separate juvenile justice parens patriae system; however, with the juvenile justice system not as successful as originally imagined, blame has shifted to the parents. We examine the potential constitutional implications of enacting and enforcing parental involvement statutes and ordinances and …