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Articles 1 - 30 of 268
Full-Text Articles in Psychology
Decoding Affective Information From Neuronal Populations In The Human Hippocampus, Alexander N. Lawriw
Decoding Affective Information From Neuronal Populations In The Human Hippocampus, Alexander N. Lawriw
LSU Master's Theses
The hippocampus is understood to play a key role in the formation of episodic memories. Prominent theories suggest this is made possible through use of sparse encoding schemes, in which a small number of neurons encode each episodic event using a distinct pattern of neuronal activity. However, more recent computational models suggest that the hippocampus may also be capable of representing semantic structure, a notion previously thought to be exclusive to the neocortex. In our previous line of work, we trained multivariate classifiers to predict the semantic content, specifically affect, of computer-generated faces given spiking data taken from individual neurons …
The Association Between Problematic Drinking And Ends Use In College Students: The Role Of Alcohol Expectancies, Nina Glover
The Association Between Problematic Drinking And Ends Use In College Students: The Role Of Alcohol Expectancies, Nina Glover
LSU Master's Theses
Electronic nicotine delivery system (ENDS) use and alcohol use are prevalent among young adults and college students. Recent data indicate that ENDS use is significantly associated with alcohol consumption and hazardous drinking behavior (e.g., binge drinking). Given the perceived benefits students report that are common across ENDS and alcohol use (e.g., tension reduction), it is important to examine the role these beliefs play in the co-use of alcohol and ENDS, as both behaviors are associated with risks. In the present study, we investigated the relationship among ENDS use, alcohol use, ENDS use motives, and alcohol expectancies in undergraduate college students …
Examining The Effects Of Differential Reinforcement And Time-Out On Unsafe Playground Behavior, Elizabeth K. Linton
Examining The Effects Of Differential Reinforcement And Time-Out On Unsafe Playground Behavior, Elizabeth K. Linton
LSU Master's Theses
The purpose of this study was to examine the effects of differential reinforcement (DRO) without extinction, and then the additive effects of time-out, on reducing unsafe playground behavior. The results of the DRO in isolation phase indicated that DRO alone was only consistently effective in reducing or eliminating unsafe behavior for one out of four participants. The other three participants moved on to the multielement comparison where the combination of DRO and time-out (DRO+TO) condition was added. The DRO+TO condition reduced and eliminated unsafe playground behavior for all participants who experienced the condition. Those participants engaged in higher levels of …
Integrating Behavioral Research Findings With A Liberal Arts Paradigm, Jonathan Peterson
Integrating Behavioral Research Findings With A Liberal Arts Paradigm, Jonathan Peterson
LSU Master's Theses
This paper explores the role of behavioral research in understanding the complexity and relevance of creativity. A brief history of the liberal arts and its current application is followed by a discussion of the importance of variability in generating novel and diverse responses, challenging the notion that creativity is solely a product of innate talent. The effects of reinforcement on variability, and how it relates to a complex relationship between reinforcement and the probability of variable responding leads to a discussion of how the combination of previously trained behaviors can lead to creative problem-solving, emphasizing the role of combinatory behavior …
Division I Softball Athletes' Perceptions On Stress, Coping, Performance, And Mental Health, Rhianna Weall
Division I Softball Athletes' Perceptions On Stress, Coping, Performance, And Mental Health, Rhianna Weall
LSU Master's Theses
Collegiate athletes face numerous stressors in both athletic and academic areas of performance. Their perceptions of situations dictate coping responses and their ability to enact behavior or implement strategies to manage stress levels. This study investigated perceived stress and coping strategies using semi-structured in-person interviews with five current NCAA Division I softball players. Three main themes emerged from the interviews: (a) Pressure is Privilege, (b) Team Dynamic and Identity Development, (c) Softball-Centrism. In the first theme, pressure is viewed as a positive aspect and as an opportunity to perform in areas of high and low levels of confidence. Within the …
The Influence Of Native Language And Sentence Form On Memory Of Motion Events, Stephanie L. Lopez
The Influence Of Native Language And Sentence Form On Memory Of Motion Events, Stephanie L. Lopez
LSU Master's Theses
This study utilized four experiments to investigate the extent to which native language influences memory in accordance with linguistic relativity. In Experiment 1, monolingual English speakers and Spanish/English bilinguals were divided into a verbal encoding condition and a verbal suppression encoding condition and watched motion events of low or high physical salience. Participants engaged in a recognition memory task followed by an event memory similarity judgment task. In Experiment 2, native monolingual English speakers were divided into an English-like (or manner-on-verb) description group, a Spanish-like (or path-on-verb) description group, mimicking the language groups of Experiment 1 respectively, and a verbal …
Evaluating Sensory Quality, Willingness To Try, Risk And Product Appropriateness Of Seafood Byproducts, Silvia Jessenia Murillo Miguez
Evaluating Sensory Quality, Willingness To Try, Risk And Product Appropriateness Of Seafood Byproducts, Silvia Jessenia Murillo Miguez
LSU Master's Theses
Valorization of food wastes/byproducts has become a major subject of research to increase sustainability of the global food supply chain. Seafood industries generate a substantial quantity of byproducts. An online survey was used to evaluate Willingness-to-try (WTT), the effect of a Consumer Safety Statement (CSS) on WTT, perceived risks and product appropriateness associated with seafood byproducts in food as influenced by gender and race. Based on the finding from this survey, a clean label catfish bone powder (CBP) was developed and used for breaded catfish sticks which were evaluated for sensory liking, emotional profile, and purchase intent. Previous consumers of …
Effects Of Neighborhood Disadvantage And Peer Deviance On Conduct Problems: Interactions With Age Of Onset, Courtney Marie Goetz
Effects Of Neighborhood Disadvantage And Peer Deviance On Conduct Problems: Interactions With Age Of Onset, Courtney Marie Goetz
LSU Master's Theses
Youth with conduct problems (CP) generally fall into two developmental classifications, child-onset and adolescent-onset, which exhibit different causal processes and life course trajectories. Research suggests that child-onset CP is more likely to be related to individual predispositions, while adolescent-onset CP is more associated with social factors, such as peer delinquency. Living in impoverished and disorganized neighborhoods increases the risk for associating with deviant peers. Thus, the current study tested the hypothesis that neighborhood factors would be more strongly associated with adolescent-onset CP than child-onset CP, which would be explained by a greater association with deviant peers. Linear and negative binomial …
Finding Forensic Evidence In The Operating System's Graphical User Interface, Edward X. Wilson Mr.
Finding Forensic Evidence In The Operating System's Graphical User Interface, Edward X. Wilson Mr.
LSU Master's Theses
A branch of cyber security known as memory forensics focuses on extracting meaningful evidence from system memory. This analysis is often referred to as volatile memory analysis, and is generally performed on memory captures acquired from target systems. Inside of a memory capture is the complete state of a system under investigation, including the contents of currently running as well as previously executed applications. Analysis of this data can reveal a significant amount of activity that occurred on a system since the last reboot. For this research, the Windows operating system is targeted. In particular, the graphical user interface component …
Narcissism And Risk-Taking For Others, Tyler B. Cowley
Narcissism And Risk-Taking For Others, Tyler B. Cowley
LSU Master's Theses
While prior findings demonstrate that narcissists are excessively risk-seeking for themselves, research does not yet understand if their risk-seeking behaviors extend to others as well. This paper examines the role of narcissism in risk-taking on behalf of others. I hypothesize that narcissists will take more risks when deciding for others because they lack empathy and perspective taking. Therefore, narcissists are more likely to take risks based on their personal preferences, rather than the recipient’s desires. To test my hypotheses, participants completed the Balloon Analogue Risk Task (BART) for themselves, another individual, and an anonymous individual, followed by completing the Narcissistic …
The Impact Of Social Support Sources On Lgbtq Adolescents, Kaitlyn C. Mccauley
The Impact Of Social Support Sources On Lgbtq Adolescents, Kaitlyn C. Mccauley
LSU Master's Theses
Research demonstrates that adolescents social support plays an important role in protecting against adverse events (e.g., Brewin & MacCarthy, 1989; Muzik et al., 2017). LGBQ adolescents have been shown to experience greater adverse experiences such a daily microaggressions and higher rates of both childhood adversity (Baams, 2018) and peer victimization (Kosciw et al., 2014). Increased stressors often lead to poorer outcomes in this population. Social support research for adolescents has shown that different sources of social support have shown to buffer these reported issues (e.g., greater parent and peer support buffers suicidal ideation, Fredrick et al., 2018). Studies with LGBQ …
Baseline Differences In Driving Frequency As A Predictor Of Cognitive Decline, Luke R. Miller
Baseline Differences In Driving Frequency As A Predictor Of Cognitive Decline, Luke R. Miller
LSU Master's Theses
Driving is a complex task heavily dependent on cognitive functions which can decline with age including executive functions and processing speed. Although driving cessation as a predictor of cognitive changes has been studied, driving frequency is understudied in the literature. Thus, the objective of the current study is to evaluate the predictive utility of driving frequency at baseline toward objective cognitive decline beyond other factors associated with cognitive decline (e.g., depression, general functional mobility). The sample included a subset of 1,426 older adults (M age = 77.6, SD = 7.1) from the Rush University Memory and Aging Project. Participants completed …
A Relational Study Of Self-Taught And Formally Trained Musicians: Trends Within Memory And Socioeconomic Factors, Matthew N. Jimenez, Emily M. Elliott
A Relational Study Of Self-Taught And Formally Trained Musicians: Trends Within Memory And Socioeconomic Factors, Matthew N. Jimenez, Emily M. Elliott
LSU Master's Theses
It has been well documented that musicians perform better in memory tasks than non-musicians. The current study utilized self-taught musicians, formally trained musicians, and non-musicians, and focused on short-term memory (STM), musicianship, and SES factors to explore this finding. Do the memory benefits of musical training extend to self-taught musicians? First, we addressed musicianship amongst all groups using the Goldsmith’s Musical Sophistication Index (GMSI), which contained subjective and objective measures. The subjective measure was a survey regarding the role of music in daily life. In the objective measures, participants completed tests of beat and melody perception. To measure STM, participants …
Organizational Commitment Profiles And Employee Well-Being: A Latent Profile Analysis, Hannah E. Perkins
Organizational Commitment Profiles And Employee Well-Being: A Latent Profile Analysis, Hannah E. Perkins
LSU Master's Theses
The present study examined the influence that employees’ organizational commitment profile has on both work and non-work outcomes. While the nomological network of the three-component model of organizational commitment has been studied widely, the application of the latent profile analysis (LPA) has changed the way researchers explore organizational commitment. Specifically, while variable centered approaches (e.g., correlations, multiple regression) measure each type of commitment independently and ultimately assume the linear relationships detected are applicable to every employee, a person-centered approach (e.g., latent profile analysis) groups individuals according to patterns of the reported target variables, allowing researchers to explore the combined or …
Does Chronic Risperidone Administration Affect Food Reinforcement In Adulthood In Mice?, Francis Torres, Paul Soto
Does Chronic Risperidone Administration Affect Food Reinforcement In Adulthood In Mice?, Francis Torres, Paul Soto
LSU Master's Theses
Second-generation antipsychotics (SGAs) increase weight gain and food consumption in humans and non-human animals. It has been speculated that SGAs increase the reinforcing effects of food, which increases food consumption and drives weight gain. The current study evaluated the effects of risperidone on sucrose reinforcement in male and female C57BL/6J mice using economic demand assessments. Demand for sucrose was measured by varying the fixed ratio (FR) value required to produce sucrose delivery across experimental sessions using five FR values: 1, 5, 15, 30, and 45. The effects of acute risperidone administration on demand for sucrose were first assessed by orally …
The Use Of Non-Immersive Virtual Reality As A Functional Rehabilitation Tool For Older Adults With Cognitive Decline, Ross M. Divers
The Use Of Non-Immersive Virtual Reality As A Functional Rehabilitation Tool For Older Adults With Cognitive Decline, Ross M. Divers
LSU Master's Theses
There is currently no cure for age-related cognitive decline or dementia and current pharmacologic interventions have had limited success at improving daily functioning. Consequently, older adults who experience cognitive decline require assistance with daily activities, which can be quite expensive and lead to caregiver burden. Repeated performance of everyday tasks has been shown to improve performance but requires supervision and direction by another person. The present study evaluated a low-cost computer training program that will use non-immersive virtual reality to enable participants with dementia or cognitive decline to independently practice meaningful everyday activities (e.g., meal preparation). Participants (N= 8) with …
The Influence Of Clutter On Target Prevalence And Decision Making During Visual Search, Brandon Eich
The Influence Of Clutter On Target Prevalence And Decision Making During Visual Search, Brandon Eich
LSU Master's Theses
Participants are sensitive to target prevalence effects in visual search. Low prevalence of targets leads to increased miss rates and shorter response times, and high prevalence of targets leads to increased false alarm rates and longer response times. These effects have been explained using the Multiple-Decision Model (MDM), in which two decisions impact performance during serial visual search. The first decision is whether an inspected item is a target. The second decision is whether the search should be ended with a target-absent response. Target prevalence influences these decisions, evidenced by changes in miss rate, false alarm rate, and response time. …
Examining The Relationship Between Functionally Assessed Parental Behavior And Child Anxiety, Allison Smith
Examining The Relationship Between Functionally Assessed Parental Behavior And Child Anxiety, Allison Smith
LSU Master's Theses
Etiological theories of child anxiety suggest an interaction of multiple factors that lead to the development and maintenance of child anxiety. Environmental influence, specifically that involving the family or parent, has been a target area of study for decades. Additionally, functional assessment of behavior indicates that certain behaviors may be maintained primarily by specific functions. Functional assessment has been successful at identifying functions of problematic behavior and planning treatment accordingly. However, in the realm of child internalizing disorders, research has not utilized functional assessment in this way. Acknowledging the impact of parental behavior on child anxiety as well as the …
Mindfulness And Physical Activity As Moderators Of Behavioral Inhibition Sensitivity And Psychological Distress, Edward Silber
Mindfulness And Physical Activity As Moderators Of Behavioral Inhibition Sensitivity And Psychological Distress, Edward Silber
LSU Master's Theses
Framed in Reinforcement Sensitivity Theory, the current study examined the moderating effects of mindfulness and moderate-to-vigorous physical activity (MVPA) on the relationship between behavioral inhibition system (BIS) sensitivity and psychological distress. Participants (N=183) were college students at a large public university in the Southeastern United States. Data were collected using an online survey with self-report questionnaires that demonstrated acceptable reliability. Data analysis utilized multiple linear regression models to test study hypotheses. Findings revealed a significant positive relationship between BIS sensitivity and psychological distress, with mindfulness and MVPA significantly moderating this association. Specifically, increased reports of mindfulness and MVPA …
Caregiver Treatment Consumption In An Experimental Treatment Marketplace, Delaney J. Darragh
Caregiver Treatment Consumption In An Experimental Treatment Marketplace, Delaney J. Darragh
LSU Master's Theses
Behavioral economics is an approach to understanding consumer behavior by integrating behavioral science with economic principles. Behavioral economics incorporates traditional economic principles with operant learning approaches. There is limited research examining how individuals consume psychological and behavioral treatments. This is especially the case for treatments designed for children. The current study used data from a previously collected sample to explore gender differences in an experimental treatment marketplace (ETM). Experimental treatment marketplaces are generally used to evaluate choices between goods and services (e.g., types of behavior interventions). An ETM was developed to evaluate treatment consumption when levels of evidence differed between …
An Investigation Of How Previous Diagnoses Affect The Developmental Functioning Of Children At Risk For Autism Spectrum Disorder, Michaela Brown
An Investigation Of How Previous Diagnoses Affect The Developmental Functioning Of Children At Risk For Autism Spectrum Disorder, Michaela Brown
LSU Master's Theses
Research has shown that children with autism spectrum disorder (ASD) often have co-occurring medical and/or psychiatric disorders. This current study aimed to investigate how previous diagnoses, which may become comorbidities of ASD if diagnosed, affect the developmental functioning of children presenting as at risk for ASD compared to those presenting with no risk. Developmental areas such as communication, motor, adaptive, cognitive and social, as well as overall developmental functioning, were considered in the analysis. 11,970 children under the age of three were studied. Results found that the presence of previous diagnoses significantly predicted developmental functioning, particularly in the motor functioning …
Developmental Functioning Of Infants And Toddlers With Neurodevelopmental Disorders, Megan Callahan
Developmental Functioning Of Infants And Toddlers With Neurodevelopmental Disorders, Megan Callahan
LSU Master's Theses
Autism spectrum disorder (ASD), epilepsy, and cerebral palsy (CP) are some of the most common neurodevelopmental disorders among children with prevalence rates of 1.85% (Maenner et al., 2020), 1.2% (Zack & Kobau, 2017), and between 0.21 and 0.31% (Christensen et al., 2013), respectively. These neurodevelopmental disorders are highly comorbid with each other and with other disorders, such as intellectual disability (ID). While previous research has investigated developmental functioning in these neurodevelopmental disorders, it has primarily focused on only two at a time and in older children or adults. The current study aimed to investigate developmental functioning in these neurodevelopmental disorders …
The Predictive Influence Of Challenging Behavior On Parent Stress In Young Children With Autism Spectrum Disorder, Paige Weir
LSU Master's Theses
Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by deficits in social communication, restricted interest, and repetitive patterns of behavior. Individuals with ASD also exhibit challenging behaviors that affect parent and caregiver stress directly. However, researchers have not yet examined the predictive influence of specific challenging behaviors on parent stress, particularly in young children (i.e., infants and toddlers) with ASD. Therefore, the current study expands existing literature by a) investigating the influence that challenging behaviors of young children with ASD have on parent stress and b) examining the unique contribution that each behavior (i.e., aggressive/disruptive behavior, stereotypy, and self-injurious …
Efficiency Of Teaching Sight Words In Similar Vs Dissimilar Sets, Jensen Chotto
Efficiency Of Teaching Sight Words In Similar Vs Dissimilar Sets, Jensen Chotto
LSU Master's Theses
Early reading intervention can decrease the likelihood that children who struggle with reading develop long-term reading problems. Due to the prevalence of words that cannot be read phonetically in the English language, sight word instruction is required to supplement phonics instruction. In this study, we compared the effects of creating sets of sight words with the same starting letter (3 words per set, 3 total sets) versus distributing words with the same starting letter across sets when assessing acquisition of the combined set (9 words) in five 4-to-6-year-old children using a combined adapted alternating treatments design and pre-posttest design. All …
A Systematic Review And Reflection On The Dimensions Of Diversity Represented In Behavior Analytic Research, Jodie Waits
A Systematic Review And Reflection On The Dimensions Of Diversity Represented In Behavior Analytic Research, Jodie Waits
LSU Master's Theses
The United States continues to transition towards a majority-minority composition and this trend has most rapidly emerged for school-aged children. Work with diverse populations calls for specialized skills and training experiences, but these are not strongly reflected in most training programs in Applied Behavior Analysis (ABA). The present review was conducted to evaluate the scope and range of the dimensions of diversity included in Behavior Analytic research (e.g. race/ethnicity, gender, sexuality, etc.), as well as to compile recommendations related to culturally responsive practice in ABA. The search revealed a total of 50 publications featuring a dimension of diversity. These works …
An Erp Study Of The Effects Of Iconic And Nonsense Gestures On Memory Formation, Brianna E. Cairney
An Erp Study Of The Effects Of Iconic And Nonsense Gestures On Memory Formation, Brianna E. Cairney
LSU Master's Theses
Co-speech gesture is an important part of human communication and aids in comprehension, learning, and memory. The addition of iconic gestures to speech has been shown in prior work to enhance memory for the speech. However, it remains unclear as to whether this benefit requires gestures to be meaningful, or, conversely, if any attentionally-engaging gesture will enhance memory. In the current study, we tested two theories to explain the mnemonic benefits of co-speech gesture: Dual Coding Theory, which attributes these benefits to multimodal encoding and enhanced imageability, and Attentional Highlighting Theory, which posits that gestures draw more attention to concurrent …
Racial Dissimilarity And Employee Attitudes And Behaviors: The Moderating Role Of Competitive Work Environment And Social Support, Sydney Green
LSU Master's Theses
Racial diversity within public and private organizations is a controversial topic: many companies are encouraged to make their team racially representative of the general public while also maintaining productivity. At the same time, research suggests that increasing racial diversity may have a negative influence on desirable work-related outcomes, especially if employees perceive themselves to be racially dissimilar from their coworkers. In attempting to increase racial diversity, organizations may leave some of their employees experiencing negative consequences related to being the only employee of a particular racial minority group (e.g., Black). These types of circumstances and their negative consequences adds to …
The Relationship Between Type Of Parental First Concerns And Severity Of Developmental Delays In Toddlers With Autism Or Developmental Delay, Joshua J. Montrenes
The Relationship Between Type Of Parental First Concerns And Severity Of Developmental Delays In Toddlers With Autism Or Developmental Delay, Joshua J. Montrenes
LSU Master's Theses
Autism spectrum disorder (ASD) is characterized by impairments in social communication and the presence of restricted, repetitive behaviors. The impairments which are commonly associated with ASD manifest during early development as delayed speech or impaired social skills, for example. These early indicators are often noticed by parents who convey concern to medical professionals. Research has found associations between these early parental concerns and a later diagnosis of autism, noting their predictive validity. Research has yet to address the relationship between types of parental concerns and developmental functioning. This study examined whether certain parent reported concerns are more predictive of impaired …
Anxiety And Depression's Incremental Effect On Executive Functioning Deficits In Children And Adolescents, Paige Picou
Anxiety And Depression's Incremental Effect On Executive Functioning Deficits In Children And Adolescents, Paige Picou
LSU Master's Theses
Children and adolescents experiencing anxiety and/or depression experience impairment in a myriad of domains and often engage in maladaptive strategies that then exacerbate or prolong their current symptomology. However, there is still a paucity of research examining anxiety and depression’s impact on executive functioning in children and adolescents, and existing research is muddled with problems in how researchers both define and choose to measure executive functioning. This study aims to clarify some of the conflicting research on anxiety and depression’s impact on executive functioning by using Barkley’s hybrid theory of executive functioning to determine whether anxiety and depressive symptomology add …
Neurocognitive Interactions Between Anticipatory Anxiety And Memory Encoding, Felicia M. Chaisson
Neurocognitive Interactions Between Anticipatory Anxiety And Memory Encoding, Felicia M. Chaisson
LSU Master's Theses
Although acute anxiety has been shown to improve encoding of threat-relevant information, its effects on threat-neutral information are less understood. Recent research suggests that anxiety can impair subsequent recall for neutral words, particularly following practice with the recall task. Here we use event-related potentials (ERPs) to test the notion that anxiety specifically disrupts the implementation of encoding strategies—such as elaborative encoding—that tend to develop with practice. ERPs were recorded as participants studied two sets of neutral words, one of which was presented in a stressful context using the threat-of-shock paradigm (threat block), and the other in a non-threatening context (safe …