Psychology Commons^™

The Neurobehavioral Consequences Of Gestational And Chronic Atrazine Exposure In Male And Female Sprague Dawley Rats, Jennifer L. Walters

Dissertations

The adverse health risks of exposure to the herbicide, atrazine, in humans are not fully understood. Although numerous studies have demonstrated atrazine to be an endocrine disrupter, the neurobehavioral consequences of atrazine exposure have not been thoroughly examined. The aim of this study was to investigate the effects of environmentally-relevant levels

of gestational followed by continued chronic atrazine exposure on motor function, learning and memory, anxiety, and striatal dopamine content in rodents. Pregnant Sprague Dawley rats were treated by gavage with 100 µg/kg atrazine (ATZ low), 10 me/kg atrazine (ATZ high), or vehicle on

gestational day l through postnatal day …

On Reporting The Onset Of The Intention To Move, Uri Maoz, Liad Mudrik, Ram Rivlin, Ian Ross, Adam Mamelak, Gideon Yaffe

Psychology Faculty Books and Book Chapters

"In 1965, Hans Kornhuber and Luder Deecke made a discovery that greatly influenced the study of voluntary action. Using electroencephalography (EEG), they showed that when aligning some tens of trials to movement onset and averaging, a slowly decreasing electrical potential emerges over central regions of the brain. It starts 1 second ( s) or so before the onset of the voluntary action1 and continues until shortly after the action begins. They termed this the Bereitschaftspotential, or readiness potential (RP; Kornhuber & Deecke, 1965).2 This became the first well-established neural marker of voluntary action. In that, the RP allowed for more …

East Asian Low Marriage And Birth Rates: The Role Of Social Status Affordance In Marriage And Childbearing Behavior, Jose C. Yong

Dissertations and Theses Collection (Open Access)

Although declines in marriage and birth rates are generally associated with industrialization and economic advancement, countries with a dominantly East Asian cultural population exhibit the lowest marriage and birth rates in the developed world. This study aims to identify and verify a new latent construct, social status affordance, as an underlying account for the differences in long-term mating outcomes (i.e., marriage and childbearing) between developed East Asian countries and other developed countries. Drawing on an understanding of the specific East Asian cultural values of harmony and deference and, subsequently, the importance of social status conferred by educational and occupational prestige …

Adolescent Bisphenol-A Exposure Decreases Dendritic Spine Density: Role Of Sex And Age, Rachel E. Bowman, Victoria N. Luine, Hameda Khandaker, Joseph J. Villafane, Maya Frankfurt

Psychology Faculty Publications

Bisphenol-A (BPA), a common environmental endocrine disruptor, modulates estrogenic, androgenic, and anti-androgenic effects throughout the lifespan. We recently showed that low dose BPA exposure during adolescence increases anxiety and impairs spatial memory independent of sex. In the current study, six week old Sprague Dawley rats (n=24 males, n=24 females) received daily subcutaneous injections (40 µg/kg bodyweight) of BPA or vehicle for one week. Serum corticosterone levels in response to a 1 h restraint stress and spine density were examined at age 7 (cohort 1) and 11 (cohort 2) weeks. Adolescent BPA exposure did not alter stress dependent corticosterone responses but …

Ua66 Ogden College Of Science & Engineering Newsletter, Cheryl Stevens, Dean

Ogden College of Science & Engineering Publications

No abstract provided.

Directed Forgetting Of Happy And Angry Faces: The Effects Of Facial Emotion And Sex On Recognition Memory For Facial Identity, Kay Chai Tay

Dissertations and Theses Collection (Open Access)

The literature on directed forgetting – which refers to forgetting the specified information intentionally – has almost exclusively focused on either emotional words or pictures. Consequently, little is known about the impact of facial stimuli that demand more complex cognitive processing than words or pictures. A pilot study was conducted to obtain norm ratings on 152 facial images portraying neutral, happy and angry emotions. From this set of facial stimuli, 96 faces were selected for the main study. In the main study, 75 female participants were presented with 48 faces individually with equal number of happy and angry and, male …

Every Breath You Take: An Examination Of The Natural Phenomenon Of Stalking, Gordon A. Crews, Sara K. Green, Paige A. Heinrich

Criminal Justice Faculty Research

Everyone is a potential stalker, given the right set of circumstances. There are a vast number of tools readily available—from social media networking to easily accessible websites that provide background checks for a minimal fee—that allow individuals to observe the life (or lives) of whomever they so desire. But what are the innate, essential traits and characteristics of an individual that extends beyond the more normative expression of romantic interest and the general curiosity that is a natural and accepted occurrence for anyone who has ever been infatuated with another? This paper will consider the intentionality and motivation behind stalking, …

A Transdiagnostic Social Skills Intervention: Using A Structured Story To Teach Children How To Ask A Friend To Play, Elizabeth Santy

Graduate School of Professional Psychology: Doctoral Papers and Masters Projects

An (independent samples comparison) controlled study was conducted to assess the efficacy of a novel approach to social skills training for children in a local socialization group at Knippenberg, Patterson & Associates (KPA). The treatment condition involved the combination of a Structured Story (i.e., novel bibliotherapy technique for children with social skills deficits), and a behavioral rehearsal (or role-play) segment, where the children practiced the target social skill featured in the Structure Story. The control group did not receive the Structured Story nor the behavioral rehearsal. Children in both groups engaged in ten-minutes of free play that was videorecorded for …

Using The R-Pas' Aggressive Content Score For The Evaluation Of Aggressive Behaviors In Children, Rebecca Dehass

Graduate School of Professional Psychology: Doctoral Papers and Masters Projects

The Rorschach Performance Assessment System (R-PAS) was developed in 2011 as an alternative to the previous Comprehensive System. The goal was to improve the psychometrics, and particularly the validity, of this assessment method. The norms for children were questionable in the Comprehensive system (e.g., outdated, low numbers of subjects) and validity studies for children were sparse. One of the indicators included in the R-PAS system, the aggressive content indicator (AgC), is intended to reflect aggressive behavior, but few studies have examined the validity of this indicator. This study examined the validity of AgC in a sample of 32 children and …

A Comparison Of Risk-Taking Measures, Brittany Lang

Journal of Undergraduate Research at Minnesota State University, Mankato

Risk-taking is an important construct that correlates with many areas of study such as substance abuse, psychological disorders, life-span changes and military involvement. As risk- taking is such a broadly defined construct, there are many different means used to measure it. Ironically, there has never been a study done to see whether or not these measures are looking at the same type of risk-taking. Our study investigated the differences and similarities in three risk- taking measures, the Balloon Analogue Risk-Task (BART), the TCU Self-Rating Form and the Domain-Specific Risk-Taking scale (DOSPERT). We analyzed the results within each participant to see …

The Effects Of Varying Duration Of Reinforcement On Novel Selection-Based Mands Versus Topgraphy-Based Mands, Nicholas S. Acker

Masters Theses

In recent years, researchers have evaluated individuals' preferences for different mand modalities and its effects on the acquisition of novel mands during functional con1munication training (i.e., FCT; e.g., Falcomata, Ringdahl, Christensen, & Boelter, 20 I 0). In many of these studies, the modality of responding that Michael ( 1985) classified as selection-based responding, is preferred by participants (e.g., Falcomata et al., 201 0). Wraikat, Sundberg, and Michael (1991) suggest that topography-based responses may be preferable for the acquisition of complex language. However, selection-based verbal responses may have faster acquisition in learning initial verbal operants (Charlop-Christy, Carpenter, Le, LeBlanc & Kellet, …

Generalization Of Fear Effects In Reinstatement To A Discrete Stimulus, Lauren Best

USC Aiken Psychology Theses

The purpose of this study was to investigate generalization of reinstated fear effects to a discrete stimulus. McAllister and McAllister (2006) reported that reinstated fear could generalize over time to similar contexts. The present study aimed to determine if reinstated fear could generalize to similar or different stimuli than conditioning after a long delay between reinstatement and testing. Rat subjects were randomly assigned to six groups (n = 10) which received conditioning and extinction to a 3000 Hz tone. Reinstatement conditioning was then conducted with either the same, similar, or different CS as used in conditioning. Testing for reinstated fear …

A Comparison Of Two Variations Of A Stimulus-Stimulus Pairing Procedure On Novel And Infrequent Vocalizations Of Children With Autism, Andrew J. Bulla

Masters Theses

Despite the growth in a behavioral technology for the treatment of autism, a small population of individuals with autism fails to develop functional language. One procedure used for inducing vocalizations in non-verbal children is a stimulus-stimulus pairing (SSP) procedure. In an SSP procedure a vocalization is paired with a reinforcer over a period of time to establish the vocalization as a learned reinforcer, and any utterance of the target vocalization is believed to be automatically reinforced thus increasing the frequency of the vocalization. Past research has yielded mixed results with the SSP procedure, and more research is warranted to identify …

Tall Tales: Editing Autobiographical Memories, Holly Elizabeth Cole

Graduate Theses and Dissertations

The impact of exaggerating when sharing an autobiographical memory with another person was investigated. Literature indicates that sharing an autobiographical memory serves a social function. However no research has investigated the impact that exaggerating when sharing specific memories has on this function. Research on lying suggests that deviating from the truth would cause the listener to like the speaker less. Research on what makes a good story indicates deviating from the truth could enhance the social benefits of sharing specific autobiographical memories by increasing the quality of the story. In Study 1, participants read scenarios of a person telling a …

The Perception Of Distance On A Real Geographic Slope, David Alan Bunch

Dissertations

Ooi, Wu, and He (2001) have shown that for objects resting on flat, horizontal surfaces, those that appear in the lower sector of the visual field are perceived as close to the observer and objects located near the visual horizon are perceived as further from the observer. Researchers have hypothesized that observers utilize the angle subtended between the horizon and the line of sight to the target object as information for distance.In a previous investigation Hajnal, Bunch, and Kelty-Stephen (2014) showed that an object’s physical angle of declination below the horizon is not uniquely utilized when making distance estimates to …

The Impact Of Sleep Restriction (Nap Deprivation) On Preschool Children's (Aged 3-5) Emotional Response, Hui-Ya Gail Han

Dissertations

This study examined the effect of nap restriction on 3- to 5-year-old habitually napping children’s emotional responding. It was predicted that the intensity of emotional stimuli would moderate the relationship between nap restriction and the magnitude of emotional responding. Specifically, following nap restriction, the emotional responses to stronger stimuli would be amplified, while the emotional responses to weaker stimuli would be reduced. Emotional stimuli, were classified into four categories: strong negative, weak negative, weak positive, and strong positive. Facial electromyography was measured to reflect preschoolers’ emotional responses. The results indicated emotional responses to both strong negative and positive stimuli were …

Effects Of Animal Management Changes On The Activity Budgets And Walking Rates Of Zoo Elephants, Angela Dawn Mackey

Dissertations

The current study aimed to assess the effects of two management strategies, weekly rototilling of the enclosure and the provision of unpredictable foraging opportunities, on the daily behavior of six elephants housed at the San Diego Zoo. Observations took place from January to June 2013 and were conducted throughout a 24- hour period. The study was divided into three phases, each two months in duration. During the first phase (baseline) no changes were made to the current management routine of the elephants. In Phase 2, rototilling of the elephant enclosures was increased from once monthly to once per week, while …

Implicit Theories Of Intelligence And Learning A Novel Mathematics Task, Nathan Oehme Rudig

UNLV Theses, Dissertations, Professional Papers, and Capstones

The social-cognitive model of motivation states that students adopt a theory of the nature of intelligence that guides their goals in academia and their responses to academic setbacks. Students who believe intelligence is an unchanging entity within them are more likely to adopt goals to display high ability, hide low ability, and respond helplessly to failed schoolwork. Conversely, a student who believes intelligence is a measure of effort and persistence will be motivated to gather knowledge and acquire new skills. The current study investigated the role theories of intelligence play in the field of mathematics understanding. In two experiments, participants …

Environmental Context And Aggression: An Experimental Demonstration Of The Role Of Alcohol Expectancies, Brynn E. Sheehan

Psychology Theses & Dissertations

Research has extensively investigated predictors of alcohol-related aggression. Alcohol expectancy theory suggests that the link between alcohol and aggression may be related to one's beliefs regarding the expected effects of alcohol on aggression. As such, research has found that exposure to a bar environment may elicit alcohol-related aggression expectancies (Wall, McKee, & Hinson, 2000; Wall, McKee, Hinson, & Goldstein, 2001). Additionally, aggression expectancies have shown to predict direct aggression, such as hitting or yelling (Leonard, Collins, & Quigley, 2003; Smucker Barnwell, Borders, & Earlywine, 2006). While these research studies have shown separately that alcohol cues elicit aggression expectancies, and that …

Parental Depression And Child Behavior Problems: A Closer Examination, Yangmu Xu

Loma Linda University Electronic Theses, Dissertations & Projects

Parents of children with autism spectrum disorders (ASD) have higher rates of depressive symptoms, and parental depressive symptoms are strongly associated with problem behaviors in children. However, the direction of effect between parental depression and child behavior problems is unclear. Additionally, the mechanisms through which parental depression contributes to child behavior problems and vice versa are not well understood. The purpose of the present study is to examine the relationship between parental depression and child behavior problems among families of children with ASD; more specifically to investigate as mediating variables that may explain the mechanisms through which parental depression and …

Musical Missteps: The Severity Of The Sophomore Slump In The Music Industry, Shane M. Zackery

Scripps Senior Theses

This study looks at alternative models of follow-up album success in order to determine if there is a relationship between the decrease in Metascore ratings (assigned by Metacritic.com) between the first and second album for a musician or band and the 1) music genre or 2) the number of years between the first and second album release. The results support the dominant thought, which suggests that neither belonging to a certain genre of music nor waiting more or less time to drop the second album makes an artist more susceptible to the Sophomore Slump. This finding is important because it …

Does Nicotine Alter What Is Learned About Non-Drug Incentives?, Tarra L. Baker

Undergraduate Honors Theses

Nicotine is one of the most addictive drugs known to man, yet it has limited reinforcing effects in humans and non-human animals when it is not self-administered in tobacco products. One hypothesis for these paradoxical effects of nicotine is that the effects of the drug in the brain alter acquisition of incentive learning. The hypothesis for this study is that nicotine will increase the value of cues paired with a reward. To test this hypothesis, 26 Sprague Dawley Male rats were randomly assigned to one of three groups Pre-NIC (the critical experimental group), Post-NIC and SAL. Each group received a …

Bullying: Prevention/ Intervention Strategies With High School Students, Chloe Blau

Senior Honors Projects

Bullying has been a prevalent issue within the public and private school systems for as long as they have existed. There have always been students who were victimized for various reasons, or for no reason at all, but this generation has become much more vicious when it comes to the lengths to which they will go to hurt someone. Many methods have been used in an attempt to create both prevention and intervention plans for these horrible acts, but it is quite difficult to change a person’s behavior. So what if instead of trying to alter the mind of the …

The Reversal Effects Of Curcumin, An Herbal Remedy, On The Impairments Induced By Vmat-2 Inhibitor Tetrabenazine, Emily Qian, Samantha E. Yohn

Honors Scholar Theses

Substantial evidence has shown that dopamine (DA), particularly in the nucleus accumbens (NAc), is involved in behavioral activation and effort-related processes, such as overcoming work related response costs. Interference with accumbens DA transmission through administration of the vesicular monoamine transportor-2 (VMAT-2) inhibitor tetrabenazine (TBZ) produces an alteration of response allocation in the concurrent FR5/chow choice procedure, biasing animals toward the lower effort alternative. It has been suggested that these drug-induced shifts in effort-related choice behavior seen in rodents are analogous to symptoms such as psychomotor retardation, anergia, and fatigue, which can be observed in people with depression and other related …

Co-Worry In Friendship Dyads, Michelle H. Goldstein

Honors Scholar Theses

Anxiety disorders increase in prevalence from childhood into adulthood. Although cognitive theories are prominent in the etiology and maintenance of anxiety, peer relationships are emerging as salient interpersonal risk factors. This study investigates the effects of specific interpersonal interchanges on anxiety symptoms in college students. 60 undergraduates attended the experiment with a same-sex best friend, and were randomly assigned to the co-worry or neutral conversation condition. Each person completed self-report measures of state anxiety, negative affect and positive affect prior to and following an 8-minute conversation about self-generated worry topics such as exams or neutral topics such as the weather. …

Effects Of Licensed And Unlicensed Negation On The Activation Of Negated Concepts, Kevin Autry

Graduate Theses and Dissertations

Research on the activation of negated concepts has demonstrated situations in which negated concepts are less active than non-negated concepts (e.g., MacDonald & Just, 1989) as well as situations where negated and non-negated concepts are equally active (e.g., Autry & Levine, 2012, in press). Based on the pragmatic inference hypothesis (Levine & Hagaman, 2008), the present experiments tested the hypothesis that the activation level of negated concepts is a function of the context in which they occur. In two experiments, the activation level of target concepts was measured following licensing or non-licensing contexts using lexical decision and reading times. Although …

The Impact Of Body Image On Women In Later Life: Effects On Quality Of Life And Body Perception, Rachel L. Avants

Graduate Theses and Dissertations

Physical, mental, and emotional changes can occur throughout the aging process, making it important to treat different age groups as separate populations when researching body image. Yet, very few instruments have been validated for middle-aged and older adults. An online survey was used to perform a validation of the Body Image Quality of Life Inventory (BIQLI) and examine demographic relationships, with a sample of 947 women, ages 40-79, from across the United States. A principal component analysis (PCA) and convergent validity supported the use of the BIQLI for women ages 40 to 79. A one-factor model was validated for comparing …

The Effects Of Child Birth Order And Number Of Children On Mother’S Supervision Beliefs And Practices, Alyssa Schramm

Honors Theses

Objective: This study aimed to examine (1) whether mothers’ attitudes about supervision differ based on (a) the number of children in the home and (b) the birth order of the child; (2) whether mothers’ reported supervision levels differ based on: (a) the number of children in the home and (b) the birth order of the child; (3) whether children in families with more than one child sustain more injuries than children in families with fewer children. I expected to find that mothers had more lax attitudes for their younger children versus old, and were more lax for homes with more …

Behavioral Sensitization Following Concurrent Exposure To Mephedrone And D-Amphetamine In Female Mice, Michael D. Berquist Ii, M. Melissa Peet, Lisa Baker

Research and Creative Activities Poster Day

Introduction

• Mephedrone (4-methylmethcathinone) is an active constituent of the illicit designer drugs commonly known as “bath salts”. In recent years, the recreational use and abuse of mephedrone and related synthetic methcathinones have dramatically increased in popularity in the U.S. and U. K. (e.g., Dybdal-Hargreaves et al., 2013; Winstock et al., 2010).

• Mephedrone consumption is associated with a number of adverse side effects such as palpitations, bruxism, agitation (Winstock et al., 2011; Wood et al., 2010; Dargan et al., 2010), paranoia, hallucinations, aggressive/violent behavior, excited delirium, and psychosis (Ross et al., 2012).

• Mephedrone may facilitate deleterious effects of other drugs of …

Moving Ahead By Thinking Backwards, Conner Lewis, Amanda Wiener

Undergraduate Research Symposium 2014

Although some research exists regarding collegiate GPAs, little is known about which individual student characteristics predict college graduation. We study 100 students from the University of Minnesota Morris. Information collected includes demographics, standard personality traits (known in Psychology as the “Big Five”), two economic preferences (risk aversion and patience), and three cognitive skills (numeracy, non-verbal IQ, “Hit15”).“Hit 15” is a game played against the computer in which each player must add 1, 2, or 3 on each turn. Winning is exactly hitting fifteen first; players take turns going first and the starting point total varies (game theory calls solving this …