Cognitive Psychology Commons^™

The Impact Of Alzheimer Disease On Semantic Knowledge, Maileen G. Ulep

UNLV Theses, Dissertations, Professional Papers, and Capstones

The research furthers the understanding of the impact of Alzheimer disease (AD) on cognition and the organization of semantic knowledge in the brain, which might contribute to the development of diagnostic and staging tools, and interventions to palliate cognitive deficits. The disruption of semantic knowledge in AD is well documented in the literature. Much of the existing research focuses on the general impact AD has on semantic knowledge. This study explores the impact of AD on specific domains of knowledge, chiefly, living kinds and artifacts, critical to ordinary functioning. The content, organization and structure of the investigated domains of knowledge …

Consideration Of Sex And Gender In Alzheimer’S Disease And Related Disorders From A Global Perspective, Michelle M. Mielke, Neelum T. Aggarwal, Clara Vila-Castelar, Puja Agarwal, Eider M. Arenaza-Urquijo, Benjamin Brett, Anna Brugulat-Serrat, Lyndsey E. Dubose, Willem S. Eikelboom, Jason Flatt, Nancy S. Foldi, Sanne Franzen, Paola Gilsanz, Wei Li, Alison J. Mcmanus, Debora Melo Van Lent, Sadaf Arefi Milan, Elizabeth C. Shaaban, Shana D. Stites, Erin Sundermann, Vidyani Suryadevara, Jean-Francoise Trani, Arlener D. Turner, Jet M. J. Vonk, Yakeel T. Quiroz, Ganesh M. Babulal

Social and Behavioral Health Faculty Research

Sex or gender differences in the risk of Alzheimer’s disease and related dementias (ADRD) differ by world region, suggesting that there are potentially modifiable risk factors for intervention. However, few epidemiological or clinical ADRD studies examine sex differences; even fewer evaluate gender in the context of ADRD risk. The goals of this perspective are to: (1) provide definitions of gender, biologic sex, and sexual orientation, and the limitations of examining these as binary variables; (2) provide an overview of what is known with regard to sex and gender differences in the risk, prevention, and diagnosis of ADRD; and (3) discuss …

Introspective Meditation Before Seeking Pleasurable Activities As A Stress Reduction Tool Among College Students: A Multi-Theory Model-Based Pilot Study, Manoj Sharma, Amar Kanekar, Kavita Batra, Traci Hayes, Ram Lakhan

Social and Behavioral Health Faculty Research

In the realm of behavioral interventions, a combined approach of yoga and a cognitive-behavioral strategy in the form of introspective meditation (manan-dhyana) may offer benefits as a stress management tool. This pilot study focuses on introspective meditation performed before seeking pleasurable activities, which is a self-reflection about whether to pursue a goal that will bring sensory pleasure in life. A non-probability sample of college students was recruited from a mid-sized Southern University of the United States using a 52-items web-based survey built in Qualtrics. Univariate, bivariate, and multivariate statistics were used to analyze data. Of total 65 students, only 21.5% …

Social Media Engagement With Transgender Fertility Content, Kajal Verma, Benette K. Sagun, Melody Rasouli, Cindy M. Duke

Department of Obstetrics & Gynecology Faculty Research

Objective: To identify transgender fertility content with the highest online engagement on social media, determine its accuracy and quality, and see how this has changed over a 2-year period. Design: BuzzSumo, a content research tool, was used to identify the top 10 article links related to transgender fertility most interacted with on the social media platforms of Facebook, Twitter, Pinterest, and Reddit. We compared article links from June 2019 to June 2020 and from June 2020 to June 2021. The articles were categorized as accurate or misleading based on the references cited and current research. A qualitative analysis was performed …

Common Features In Compulsive Sexual Behavior, Substance Use Disorders, Personality, Temperament And Attachment—A Narrative Review, Yaniv Efrati, Shane W. Kraus, Gal Kaplan

Psychology Faculty Research

Do addictions share common traits of an “addictive personality” or do different addictions have distinct personality profiles? This narrative review examines the differences in the associations between substance use disorder (SUD) and compulsive sexual behavior disorder (CSBD), on the one hand, and personality traits, attachment dispositions, and temperament, on the other hand. We found that both people with a SUD and people with CSBD tended to be more spontaneous, careless, and less reliable, to place self-interest above getting along with others, to show emotional instability and experience negative emotions such as anger, anxiety, and/or depression, to be less able to …

The Role Of Working Memory In Fraction Arithmetic: Eye Movements During A Dual Task, Krystal Kamekona-Mendoza

UNLV Theses, Dissertations, Professional Papers, and Capstones

Fractions are first introduced at the elementary school age, yet difficulty with fraction computation (i.e., adding, subtracting, multiplying, and dividing) continues to persist throughout adulthood. Research suggests that fraction knowledge is predictive of future math achievement and success in algebra. Given the early age at which this concept is introduced and the critical role that it plays in future mathematics success, it is important to better understand the cognitive mechanisms involved in fraction computation and why students continue to struggle with this concept. The role of executive function (e.g., attention, inhibition, working memory) in fraction arithmetic is complex. While working …

Multiple Approaches To Auditory Rhythm: Development Of Sustained Musical Beat And The Relation To Language, Development Of Rhythmic Categories Via Iterated Production, And A Meta-Analytic Study Of Neural Entrainment To Beat, Karli Marie Nave

UNLV Theses, Dissertations, Professional Papers, and Capstones

Rhythm is ubiquitous to human communication, coordination, and experience of music. In this dissertation, I address three empirical questions through three different methodologies, all of which contribute to the growing body of literature on human auditory rhythm processing. In Chapter 2, I present a registered report detailing the results of independent conceptual replications of Nozaradan, Peretz, Missal, & Mouraux (2011), all using the same vetted protocol. Listeners performed the same tasks as in Nozaradan et al. (2011), with the addition of behavioral measures of perception. In neuroscience, neural correlates to musical beat perception have been identified, yet little to no …

Branding Kidfluencers: Regulating Content And Advertising On Youtube, Gavin Feller, Benjamin Burroughs

Hank Greenspun School of Journalism and Media Studies Faculty Research

This paper analyzes emerging shifts in YouTube, advertising, and children’s digital media industries through a case study of Pocket Watch, a digital-first production and distribution studio built exclusively for YouTube child stars. Our analysis reveals the company’s strategic use of legacy media industry power, networks, and expertise to transform YouTube stars into global brands through the creation of toy, clothing, and lifestyle product lines across several industries. We further argue that Pocket Watch’s newly formed advertising division, Clock Work, exploits its child partners through problematic native advertising and host selling practices. The strategies implemented by Pocket Watch and other similar …

Acoustic And Semantic Processing Of Speech And Non-Speech Sounds In Children With Autism Spectrum Disorders, Breanne D. Yerkes

UNLV Theses, Dissertations, Professional Papers, and Capstones

The processing of semantically meaningful non-speech and speech sounds requires the use of acoustic and higher-order information, such as categorical knowledge and semantic context. Individuals with an autism spectrum disorder (ASD) have been theorized to show enhanced processing of acoustic features and impaired processing of contextual information. The current study investigated how children with and without ASD use acoustic and semantic information during an auditory change detection task and semantic context during a speech-in-noise task. Furthermore, relationships among IQ, the presence of ASD symptoms and the use of acoustic and semantic information across the two tasks were examined among typically …

Two Modes Of Game-Based Learning For Middle School Mathematics, Micah Stohlmann

Teaching and Learning Faculty Research

Game-based learning has received more focus as a way to engage students and increase interest in mathematics. Game-based learning should be integrated with effective practices for teaching mathematics, though these is a need for further research on effective implementation models. The purpose of this article is to describe two modes of game-based learning that are aligned with National Council of Teachers of Mathematics effective practices for teaching mathematics including multiple representation and meaningful discourse. Examples will be discussed from the implementation of game-based learning in a Saturday Science, Technology, Engineering and Mathematics (STEM) program for middle school students offered at …

Memory And Stereotypes For Lesbian/Gay Characters, Amber Rose Williams

UNLV Theses, Dissertations, Professional Papers, and Capstones

Stereotype-consistency bias refers to the idea that people tend to remember stereotypical information about others better than non-stereotypical information (Fyock & Stangor, 1994). Limited research has examined how people may use stereotype-consistency bias when recalling information about LGBT characters in narratives (Bellezza & Bower, 1981; Clark & Woll, 1981; McGann & Goodwin, 2007; Snyder & Uranowitz, 1978). This line of research suggests that, instead of genuinely remembering stereotypical information better, participants tended to guess stereotypical answers to questions they do not know. In contrast to those studies, the experiment I conducted for this thesis suggests that heterosexual young adults tend …

Musical Meter: Examining Hierarchical Temporal Perception In Complex Musical Stimuli Across Human Development, Sensory Modalities, And Expertise, Jessica Erin Nave-Blodgett

UNLV Theses, Dissertations, Professional Papers, and Capstones

Performing, listening, and moving to music are universal human behaviors. Most music in the world is organized temporally with faster periodicities nested within slower periodicities, creating a perceptual hierarchy of repeating stronger (downbeat) and weaker (upbeat) events. This perceptual organization is theorized to aid our abilities to synchronize our behaviors with music and other individuals, but there is scant empirical evidence that listeners actively perceive these multiple levels of temporal periodicities simultaneously. Furthermore, there is conflicting evidence about when, and how, the ability to perceive the beat in music emerges during development. It is also unclear if this hierarchical organization …

Eyewitness Recall And Identification Accuracy: Effects Of Stress In An Extreme Haunt And A Haunted House, William Blake Ridgway

UNLV Theses, Dissertations, Professional Papers, and Capstones

The impact of stress on eyewitness recall and identification accuracy has been studied extensively but with somewhat inconsistent results. Understanding the effects of stress are important if they are to be generalized to victims or witnesses of real crimes. This study consisted of two experiments that used an extreme haunt and a haunted house to examine attendees’ ability to recall details of and identify actors encountered, as a function of state anxiety and in the context of Deffenbacher’s (1994) catastrophe model of memory performance under anxiety. The results showed that physiological (i.e., heart rate) and psychological (i.e., State Anxiety Inventory) …

Cross-Cultural Work In Music Cognition: Challenges, Insights, And Recommendations, Nori Jacoby, Elizabeth Hellmuth Margulis, Martin Clayton, Erin Hannon, Henkjan Honing, John Iversen, Tobias Robert Klein, Samuel A. Mehr, Lara Pearson, Isabelle Peretz, Marc Pearlman, Rainer Polak, Andrea Ravignani, Patrick E. Savage, Gavin Steingo, Catherine J. Stevens, Laurel Trainor, Sandra Trehub, Michael Veal, Melanie Wald-Fuhrmann

Psychology Faculty Research

Many foundational questions in the psychology of music require cross-cultural approaches, yet the vast majority of work in the field to date has been conducted with Western participants and Western music. For cross-cultural research to thrive, it will require collaboration between people from different disciplinary backgrounds, as well as strategies for overcoming differences in assumptions, methods, and terminology. This position paper surveys the current state of the field and offers a number of concrete recommendations focused on issues involving ethics, empirical methods, and definitions of “music” and “culture.”

The Risk For Developing Disordered Gambling: Equal For Every Player? Implications For Research, Policy And Consumer Protection, Gerhard Buehringer

International Conference on Gambling & Risk Taking

Aims: (1) To introduce the concept of individual vulnerability for developing a gambling disorder (GD), (2) to question gambling supply reduction and access limitations as effective GD prevention strategies and (3) to derive short- and long-term implications for research, gambling regulation and consumer protection of vulnerable gamblers. Background: Gambling regulation is currently based on the assumption that participants have similar risks for the development of GD based on individual, social and predominantly gambling-related risk factors. Consequently, GD prevention mainly relies on supply and access limitations and “rational” consumer information and warnings within the Responsible Gambling concept. However, it remains …

Using Misconceptions To Improve Education Programs That Aim To Prevent Gambling Problems, Brittany Keen, Alex Blaszczynski, Fadi Anjoul

International Conference on Gambling & Risk Taking

No abstract provided.

Face Affect Perception In Schizophrenia And Posttraumatic Stress Disorder, Lisa Beckman

UNLV Theses, Dissertations, Professional Papers, and Capstones

Schizophrenia (SZ) and Posttraumatic Stress Disorder (PTSD) are often comorbid psychological disorders. Separately, research has previously demonstrated deficits in social cognition, including affect recognition impairment in both disorders; however, less is reliably known about the specific deficits unique to a comorbid diagnosis of SZ and PTSD. This study examined the ability to correctly identify facial expressions in individuals diagnosed with SZ (n = 38) and PTSD alone (n = 20), comorbid SZ and PTSD (n = 26), and healthy controls (n = 28). Participants were administered a test battery to establish diagnoses of of schizophrenia and PTSD, and to evaluate …

Reconsolidation: Unique Cognitive Process Or State Dependent Learning?, Chris Kiley

UNLV Theses, Dissertations, Professional Papers, and Capstones

Accessing a previously consolidated memory trace brings it back into a labile state where it must then undergo a re-stabilization process known as reconsolidation. During this process memories are susceptible to interference and may be updated with new information. Reconsolidation has been demonstrated in animals as well as in the procedural and episodic human memory systems. However, it is still unclear when the effect will occur. Some studies suggest that reconsolidation is only necessary when new information is presented in the same spatial context or when prediction error occurs. More recent work has provided evidence that reconsolidation could be due …

Beyond Right Or Wrong: The Influences Of Thinking Disposition And Item Difficulty On Student Behavior During High-Stakes Testing, Kristina Lindquist

UNLV Theses, Dissertations, Professional Papers, and Capstones

A hallmark of clinician decision making is the ability to know when to make quick decisions and when decision making should be slowed to account for complicating factors. Throughout the physician training process, multiple choice test items are used to assess student knowledge however, these items do not assess the process used by a student to arrive at the answer choice. If an important characteristic of decisions in clinical practice is timing, then decision timing could be an important consideration for medical school assessments. The purpose of this study, therefore, is to investigate factors that may affect the amount of …

Novice Versus Expert Algebraic Problem-Solving Strategies: An Eye Tracking Approach, Krystal Kamekona-Mendoza

UNLV Theses, Dissertations, Professional Papers, and Capstones

Algebra continues to be an important point along the educational spectrum. It is often the point at which we see a deviation of educational trajectories for those who are interested in pursuing additional math and science courses and those who are not. Understanding how college algebra students perform is a crucial step in further understanding the difficulties that students often encounter, as well as understanding other potential factors that may contribute to their performance. The novice/expert paradigm is one way to examine performance differences. While existing literature indicates that novices and experts perceive, sort, and solve problems differently across a …

How Instruction, Math Anxiety, And Math Achievement Affect Learning A Novel Math Task: Evidence For Better Instruction, Amy Jane Mcauley

UNLV Theses, Dissertations, Professional Papers, and Capstones

The primary goal of this paper is to test how math anxiety, achievement, and instruction affect learning a novel math task. Currently, most research measures achievement and math anxiety on previously learned tasks. A two-part study was proposed to measure the effects of math anxiety on learning modular arithmetic (MA), a novel math task that involves subtraction and division. Participants of varying degrees of anxiety and achievement were randomly assigned to either a specific or vague instruction condition. Participants were either taught how to solve the task or given minimal information about how to solve the task. Before moving on, …

The Roles Of Biophilic Attitudes And Auditory Stimuli Within Attention Restoration Theory, Jason B. Boggs

UNLV Theses, Dissertations, Professional Papers, and Capstones

Attention Restoration Theory indicates that interacting with nature allows one’s fatigued, directed attention to be restored. This effect has been documented and produced through directed interaction with nature, such as a walk in the park, as well as through indirect interactions (e.g., photographs). The current dissertation was designed to: 1) investigate whether and how biophilic attitudes affect the attention-restoring effects incurred from interactions with nature, and 2) extend the research on ART by assessing the impact of nature-related audio stimuli. A total of 184 participants completed an assessment of biophilic attitudes, engaged in attention fatiguing exercises, and participated in one …

Examining The Influence Of Executive Resources And Mathematical Abilities On Framing Biases, Gabriel Allred

UNLV Theses, Dissertations, Professional Papers, and Capstones

The finding that the presentation of a choice (i.e., either as a loss or a gain) can affect and bias our willingness to engage in risk is one of the paramount findings of behavioral economics. First discussed by Tversky and Kahneman (1981), the framing effect demonstrates that when given two choices framed as a loss, we tend to become risk seeking. However, when the exact same outcome is presented as a gain, we become risk averse, choosing the more conservative option, regardless of the actual expected value. The effect is not limited to general research samples but has been demonstrated …

A Quantitative Study Of Mitigating Resistance To Change Through A Neuro Linguistic Approach: With The Use Of Narratives And A Neuro Linguistic Pattern, Mary J. Sanders

UNLV Theses, Dissertations, Professional Papers, and Capstones

Resistance to organizational change by employees and management delays implementation, creates emotional stress for both, and reduces the potential savings from rapid change implementation. The delay comes from organizational members’ beliefs stuck in the status quo thus reducing the change’s potential improvement in productivity and effectiveness. If beliefs about the change could be embraced creating organizational readiness, these negative effects could be mitigated and improvements in productivity could be realized sooner.

Reducing the resistance to organizational change through the use of metaphors and a specific neuro linguistic programming pattern (NLP) is the focus of this research study. NLP was originally …

Change Deafness: A Comprehensive Examinations, Vanessa Claire Irsik

UNLV Theses, Dissertations, Professional Papers, and Capstones

Environmental changes are a vital source of information which can drive advantageous behavioral responses. For example, detecting visual changes can be critical when driving a vehicle or when simply walking down a busy street. Auditory perception is an essential complement to vision as it can allow awareness of changes in and out of sight. While subjective perception would suggest that our sensory representation of the world is complete, research on change deafness indicates that quite often the opposite is true. Healthy listeners often miss salient, suprathreshold auditory changes. Three separate manuscripts will be presented, each of which aims to advance …

Reconsolidating: The Effect Of Spatial Context And Expectations, Chris R. Kiley

UNLV Theses, Dissertations, Professional Papers, and Capstones

Consolidation is the process by which memories become stable over time. Accessing a previously consolidated memory trace brings it back into a labile state where it must then undergo a re-stabilization process known as reconsolidation. During this process memories are again susceptible to interference and may be updated with new information. Reconsolidation has been demonstrated in animals as well as in the procedural and episodic human memory systems. The exact boundary conditions for reconsolidation are not yet known. Some studies suggest that reconsolidation is only necessary when new information is presented in a spatial context that is indistinguishable from the …

The Relationship Between Mood And Implicit Learning, Kathleen Larson

UNLV Theses, Dissertations, Professional Papers, and Capstones

This dissertation investigates whether a person’s current mood state influences their ability to learn implicitly. Implicit learning refers to learning about regularities in the environment without having conscious access to the information (e.g., Reber, 1967). According to the affect-as-information hypothesis, a positive mood increases global processing of incoming information and negative mood leads to local processing (e.g., Clore & Storbeck, 2006); however, most previous studies that investigated mood and cognition have focused on more explicit types of learning and decision making, but few have examined implicit processes. Thus, the current experiments examined how varying levels of mood and arousal affect …

An Examination Of Accuracy And Elaborations For Character Traits In A Narrative, Michael Palena

UNLV Theses, Dissertations, Professional Papers, and Capstones

When people read a story, they often form a highly detailed representation known as a situation model. The event-indexing model (Zwaan, Langston, & Graesser, 1995) proposes that situation models are constructed along several indices, one of which is protagonist or character. While much research has been devoted to the study of tracking and forming trait-based models of fictional characters, little attention has been paid to the representation of characters’ external attributes. In Experiment 1, participants read a short story containing various characters and their attributes. Participants were then asked to recall the characters and their attributes, either according to their …

Neural Processes Underlying Auditory Context Effects, Breanne Yerkes

UNLV Theses, Dissertations, Professional Papers, and Capstones

Auditory information within our natural environments is disorganized and often ambiguous, leaving our auditory systems with a complex task: organizing sound into coherent objects. The auditory system uses both current and prior information to assist in completing this task. The influences of previous context on current perception have been referred to as context effects. A contrastive context effect results in a current perception that is opposite of what is expected based on the physical stimulus properties presented during an immediate context. A facilitative context effect results in a current perception that is the same as the perception during the immediate …

Hands, And Numbers, And Dots Oh My! Examining The Effect Of Nearby-Hands On Counting And Subitizing, Gabriel Allred

UNLV Theses, Dissertations, Professional Papers, and Capstones

The “nearby-hand” effect (Tseng, Bridgeman, & Juan 2012), an alteration of performance caused by the presence of our hands in the visuospatial area, has been found in learning, attention, and working memory tasks (Brockmole, Davoli, Abrams, & Witt, 2013a). However, no work to date has been published demonstrating a relationship between the nearby-hand effect and judgments of magnitude, including subitizing and counting. It is suggested by Tseng, Bridgeman, and Juan (2012) that nearby-hands affect attentional disengagement, yet little experimental evidence is available to support this notion. Given the serialized nature of counting, which requires attentional disengagement from item to item …