Digital Commons Network^™

The Effect Of Test Difficulty On Perceived Memory Performance, Phoebe S. Bean

Graduate Student Theses, Dissertations, & Professional Papers

Neuropsychological testing is a critical element of the assessment and treatment of a host of neurological disorders, such as Alzheimer’s Disease, stroke, and traumatic brain injury. Certain non-neurological variables may also affect an individual’s test performance. Such secondary factors may include current psychiatric issues, chronic pain, sleep, and the effort put forth during testing. Little is known, however, about the effect the testing process itself has on people’s actual and perceived cognitive abilities. For example, the process of undergoing memory testing may, through a variety of mechanisms, influence memory performance and impact the person such that their view of their …

Stress Perceptions And Verbal Commands For Law Enforcement In High-Stress Situations, John Kenneth Gibson

Walden Dissertations and Doctoral Studies

Acute stress can have a negative effect on the physiology and cognitive performance of peace officers when they are engaged in high-stress situations. This could lead to injury or loss of life if a mistaken perception occurs or incorrect decision is made by the officer or suspect. The purpose of this qualitative phenomenological study was to explore the perceptions of stress for peace officers who issue verbal commands to an aggressive role-playing suspect in a use-of-force scenario. The theoretical framework was Lazarus and Folkman's transactional theory of stress and coping. Data were collected from observations, field notes, and semi-structured interviews …

The Experience Of Conflicting Identities Amongst African American Law Enforcement Officers, Jeremy R. Jones

Walden Dissertations and Doctoral Studies

Law enforcement’s unjust treatment of African Americans is a worldwide concern but impacts the African American community in different ways, particularly African American law enforcement officers who are placed in conflicting positions. They aspire to see change and more conforming police treatment, compared to other racial populations, but work for the same organization that exhibits the biased treatment they desire to have abolished. The purpose of this qualitative research study was to explore African American law enforcement officers’ experiences of conflicting identities. The theoretical foundation was based on Turner’s theory of self-categorization (SCT). The key research questions addressed African American …

Effects Of Spatial Language Cues On Attention And The Perception Of Ambiguous Images, Aaron Foster

Cal Poly Humboldt theses and projects

It’s a bird! It’s a plane! It’s superman!? Sometimes there are things in our world that are ambiguous. An ambiguous object, for the purposes of this thesis is any object that has more than one interpretation to it. The brain is designed to “fill in the blanks” and make sense of the world. Thus it will use anything available, like language, to help in resolving the ambiguity. Language can change how we perceive information in the world (Dils & Boroditsky, 2010) and where we direct our attention (Ostarek & Vigliocco, 2017; Estes et. al. 2008; Estes, Verges, Adelman, 2015). Language …

Development And Validation Of A Multidimensional Scale For Measuring Public Confidence In The Criminal Justice System, Jimin Pyo

Dissertations, Theses, and Capstone Projects

Two studies were conducted with an aim of developing multidimensional measures of public confidence that are conceptually integrated, psychometrically sound, and useful in predicting individuals’ law related behaviors. Study 1 involves two-phased construction of scale in which a preliminary inventory was generated (Phase 1) and then finalized after evaluating psychometric properties based on 304 US adults recruited through Amazon’s Mechanical Turk (MTurk) (Phase 2). As a result, six multidimensional scales were constructed respectively for measuring efficiency-, finality-, fairness-, strictness-, accuracy-, and transparency-oriented confidence. Despite more complexity of factor structures than originally expected, results of psychometric evaluation six scales of confidence …

Scope Of Attention Variation As A Function Of Anxiety And Depression, Kathleen O'Donnell

Electronic Theses, Projects, and Dissertations

As a social species, correct emotional perception is so vital, that the human brain has evolved a mechanism to control attentional choices by exerting a narrowed field of perception during danger, called the scope of attention (SoA). The SoA determines what information will be focused on or ignored by blocking the perception of non-relevant items and increasing selective focus on danger; even if danger is merely a sad-face. The emotional items blocked from perception cannot be remembered because they were never perceived. But, attention-control to emotional stimuli also varies with mood, as seen in mood-disorders. A mood-disorder’s effect upon the …

The Effects Of Self-Regulation Depletion And Race On The Willingness To Interact With Individuals With Mental Illness, Kenocha K. Epperson

Electronic Theses and Dissertations

Although the discrimination that Black individuals encounter is unique, it is similar in some ways to the discrimination experienced by individuals with mental illness (Corrigan & Wassel, 2008; Follmer & Jones, 2018; Jackson & Stewart, 2003). Research has found that these kinds of stigma can be overridden (Baumeister et al., 1998), but doing so requires self-regulation, which can be depleted (Gailliot et al., 2007). Because stigma exists against both Black individuals and those with mental illness, and because self-regulation is necessary to override those stigmas, the purpose of this project was to examine the relationships to which Black participants would …

Perception Of County Extension Agents’ Organizational Fit After Participating In The Mentoring Component Of The Cooperative Extension Service Onboarding Program, Angela Blacklaw-Freel

Graduate Theses and Dissertations

The purpose of this study is to determine the perception employees of the Arkansas Cooperative Extension Service (CES) after participating in a mentoring program. The CES implemented an onboarding program in 2010 which included a yearlong mentoring component for county extension agents because they were resigning at an alarming rate. The study aimed to illuminate if the mentoring program increased the county extension agents’ perception of fit after completing the program by determining if they felt they possessed characteristics that were compatible with the organization.

This study was founded on the mentees’ viewpoints of their perceptions of person-organization (PO) fit, …

Perceptual Characterization: On Perceptual Learning And Perspectival Sedimentation, Anthony Holdier

Graduate Theses and Dissertations

In her analysis of perspectival effects on perception, Susanna Siegel has argued that perceptual experience is directly rationally assessable and can thereby justify perceptual beliefs, save for in cases of epistemic downgrade or perceptual hijacking; I contend that the recalcitrance of known illusions poses an insurmountable problem for Siegel’s thesis. In its place, I argue that a model of perceptual learning informed by the dual-aspect framework of base-level cognitive architecture proposed by Elisabeth Camp successfully answers the questions motivating Siegel’s project in a manner that avoids such issues.

The Role Of Action In Affordance Perception Using Virtual Reality, Ashley J. Funkhouser

Honors Theses

Space perception in virtual reality (VR) is distorted. Does action in conjunction with an avatar's presence improve perception in VR? Participants judged whether a virtual ball was within reach. Condition 1 was perception-only, where the participant was not allowed to move nor could see their arms. Condition 2 was perception with nonvisible action, where the participant could move their real arm to reach but could not see an avatar representation of the arm. Condition 3 was perception with visible action, where the participant could move and see a virtual hand that corresponded to the actual arm movement. Participants overestimated their …

Let's Get Physical: The Dual-Task Costs Of Multiple Motor Responses, Taylor Nicole Hutson

Masters Theses and Doctoral Dissertations

Dual-task costs occur when attention is divided among two or more concurrent tasks. Most dual-task studies involve paradigms where participants complete two, concurrent cognitive tasks; in these studies, performance on one or both tasks are slower and/or less accurate. The goal of this study was to examine whether dual-task costs would exist when participants completed a cognitive task while walking and whether those costs would be greater when the cognitive task required a motor-based response or when the task was more difficult. Twenty-two college students completed four blocks of a visual search task while walking. The difficult and the manual …

Mechanisms Of Value-Biased Prioritization In Fast Sensorimotor Decision Making, Kivilcim Afacan-Seref

Dissertations and Theses

In dynamic environments, split-second sensorimotor decisions must be prioritized according to potential payoffs to maximize overall rewards. The impact of relative value on deliberative perceptual judgments has been examined extensively, but relatively little is known about value-biasing mechanisms in the common situation where physical evidence is strong but the time to act is severely limited. This research examines the behavioral and electrophysiological indices of how value biases split-second perceptual decisions and the possible mechanisms underlying the process. In prominent decision models, a noisy but statistically stationary representation of sensory evidence is integrated over time to an action-triggering bound, and value-biases …

An Exploration Of Graduate And Medical Students’ Perception And Knowledge Of Other Healthcare Disciplines Contributions To Patient Care, Ashley Poole

PCOM Psychology Dissertations

Multidisciplinary teams have been identified as an effective approach to improving patient treatment outcomes for a number of health conditions, including cancer and depression. Interprofessional education (IPE) facilitates learning opportunities for health professional students to gain exposure to the ways different healthcare professions can work together to provide patient care. The objective of this study was to assess graduate and medical students’ ratings of health care professional characteristics after engaging in an IPE experience. A survey using the Student Stereotypes Rating Questionnaire (SSRQ), which consists of a five-point Likert-type scale was utilized to carry out the study goals. Each student …

The Development Of Face Morphing Task To Assess Self Other Differentiation, Esen Karan

Dissertations, Theses, and Capstone Projects

Self-Other Differentiation (SOD) refers to a developmental process of acquiring a consolidated, integrated, and individuated sense of self. SOD develops at a) perceptual (e.g., facial perception) and b) representational (e.g., traits, mental states, and beliefs) levels. Impairments in representational SOD (R-SOD) are associated with many forms of psychopathology, particularly borderline personality disorder (BPD) and narcissistic personality disorder (NPD). Few studies to date have examined the perceptual aspects of SOD (P-SOD), which are hypothesized to develop from infancy onwards in tandem and in interaction with R-SOD. Given that the human face is one of the key characteristics that humans use to …

Visual Entrainment Of Perception-Related Neural Oscillations As A Mechanism For Maintaining Rhythmic Temporal Expectations Across A Wide Range Of Frequencies, Michael James Gray

Dissertations, Theses, and Capstone Projects

Visual sensitivity fluctuates rhythmically, in-synch with ongoing, EEG-recorded neural oscillations across a wide range of frequencies (~1-25hz). Some recent work has suggested that these perception-related neural oscillations can be entrained by rhythmic visual stimulation. Evidence is also emerging that the entrainment of ongoing oscillations in visual and auditory cortices is involved in rhythmic temporal expectations. In the introduction chapter, I attempt to bridge these bodies of literature and hypothesize that rhythmic visual stimuli automatically entrain ongoing, perception-related neural oscillations and that this mechanism supports the maintenance of rhythmic temporal expectations. Chapters 2 and 3 address this hypothesis from different angles. …

The Relationship Between Perceived Sedentary Behaviour And Psychological Health, Kelsey Sick

Electronic Thesis and Dissertation Repository

The present study examined relationships between individuals’ perceptions of their level of sedentary behaviour, as compared with other people their age, and mental health and well-being. Adults (n = 374, M_age= 60% between 18 and 24) completed the online Perceived Sedentary Behaviour and Psychological Health Survey which assessed perceptions of sedentary behaviour on a typical weekday and weekend day, mental health and well-being (i.e., depression, state anxiety, perceived stress, mental well-being, mental health function), and potential covariates that have known associations with mental well-being (e.g., sociodemographic characteristics, health status factors, actual sitting time). Perceived sedentary behaviour …

Behavioral Hypervigilance In A Normative Population, Karly Weinreb

Theses and Dissertations

Hypervigilance is conceptualized as a symptom of trauma-related disorders, however it can also occur in a normative population. To distinguish normative hypervigilance from trauma-related hypervigilance, 372 participants (123 trauma-exposed and 249 non-trauma-exposed) completed a questionnaire assessing hypervigilance in contexts. Trauma-exposed participants reported greater levels of hypervigilance in 3 contexts.

Judging Facial Expressions Of Emotion: Effects Of Gender, Raine Palladino

Theses and Dissertations

This study examined how quickly people recognize happy, neutral or angry emotional expressions on faces that varied in gender presentation and femininity/masculinity of facial features. Facial features influenced judgments of emotion more for women than men. Neutral expressions were more likely seen as angry on a woman’s face.

Fluency & Over The Counter Drug Warning Labels, Jonathan M. Cecire

Seton Hall University Dissertations and Theses (ETDs)

Fluency is defined as the ease with which something is processed (Jacoby & Dallas, 1981; Okuhara, 2017). Recent research has shown that the fluency of a drug’s name can have an effect on people’s perceptions and evaluation judgments (Dohle & Siegrist, 2013, Dohle & Montoya, 2017). Research has also shown that the fluency of information can have an effect on people’s memory and performance (Diemand-Yauman, Oppenheimer, & Vaughan, 2011). The purpose of this study was to see how manipulating the fluency of warning labels could affect people’s perceptions, adherence, memory, and behaviors. Results showed that labels with fluent formats improved …

Seeing You From Your Point Of View: Perspective-Taking And First Impression Accuracy, Kathryn Graeff

Masters Theses and Doctoral Dissertations

This study assessed whether perspective-taking (considering another’s perspective, thoughts, and feelings; Davis, 1983) causes greater distinctive accuracy (judging another’s unique traits), normative accuracy (judging another as similar to the average person and positively), and distinctive assumed similarity (judging another’s personality as similar to one’s own personality) in first impressions of personality. College students (N = 429) received either perspective-taking instructions or no specific instructions before watching videos of seven individuals (targets) answering getting-to-know-you questions. Participants then rated each target’s personality. Taking the targets’ perspectives did not improve distinctive accuracy or distinctive assumed similarity. However, participants who reported actively trying or …

Real World Vs. Media Representations Of Relationships, Cassandra Thomasson

Honors College Theses

In this study, we investigated the correlations between media representation and real world views towards minority groups, specifically towards those who identify as LGBT+. To this end, participants completed questionnaires related to their personal views on real life issues, such as sexism and openness to diversity, as well as their feelings toward films featuring minority characters. Participants (N = 119) also watched trailers featuring, separately, LGBT+ characters, disabled characters, or characters who were neither, and rated how relatable they found the characters and how interested they were in seeing the film in its entirety. Correlations were conducted, and participants …

The Generalization Of Fear Condition Between Viewed And Imagined Percepts, Lauryn Michelle Burleigh

LSU Master's Theses

Mental images can provoke intense emotional states (Holmes & Matthews, 2010). Imagery and perception have common neural and physiological mechanisms, including activation of the early visual areas (Albers et al., 2013). We tested the prediction that individuals can acquire fear to imagined percepts and if this fear transfers to viewing percepts, using fMRI and self-reported measures to determine participants’ fear. The participants completed a task in which they viewed and imagined two stimuli, and were fear conditioned when imagining the CS+. Participants are only told that mild electrical stimulation will be paired with one of the stimuli, but not which …

Six Of One, Une Demi-Douzaine De L’Autre: Detecting Cross-Language Code-Switching In A Continuous Narrative, Melissa Kadish

Senior Independent Study Theses

This Independent Study examined how cross-language code-switching is processed and perceived. The following experiment compared how long English-French bilinguals, English monolinguals, and English-speaking French-language-learners took to detect instances of French/English code-switching in a semantically-rich narrative. Bilinguals displayed shorter change-detection response latencies than language learners and monolinguals, but the latter two groups did not significantly differ. These results provide insight into how the observed cognitive differences between bilinguals and monolinguals may develop, and offer support for the multi-language lexical processing theory of language interference. This study also addresses potential sociocultural origins of the observed language-level differences in code-switching perception by examining …

Integration And Segmentation Conflict During Ensemble Coding Of Aspect Ratio, Elric Matthew Elias

Electronic Theses and Dissertations

The visual system often integrates information that "goes together". Once information has been integrated, summary information (e.g., average emotion or average size) can be extracted; this occurs during ensemble coding. Integration thus allows for fast and efficient generalizations about sets to be made. In contrast, the visual system sometimes segments input that does not go together. For example, the perception of objects can be exaggerated away from natural category boundaries (e.g., a perfect circle is a category boundary; it is neither "flat" nor "tall"). Segmentation allows the visual system to make quick categorical distinctions. Much of the time, integration …

The Role Of Cues And Kinematics On Social Event Perception, Estefania Berrios

Honors Undergraduate Theses

The belief that intentions are hidden away in the minds of individuals has been circulating for many years. Theories of indirect perception, such as the Theory of Mind, have since been developed to help explain this phenomenon. Conversely, research in the field of human kinematics and event perception have also given rise to theories of direct perception. The purpose of the study was to determine if intentionality can be directly perceived rather than requiring inferential processes. Prior research regarding kinematics of cooperative and competitive movements have pointed toward direct perception, demonstrating participants can accurately judge a movement as cooperative or …

High School Students' Perceptions Of Safety Concerns Predicts School Avoidance, Ann Marie Howard

Walden Dissertations and Doctoral Studies

School violence is a growing concern and an impending danger for American youth. Students' perceptions of violent school incidents may lead to fear and this fear may lead to school avoidance. Although researchers have found that teenage pregnancy and working to support family are two of the main reasons that students stay home from school, there has been no research conducted on whether students' perceptions of safety concerns, solely focusing on the presence of guns, gangs, student bullying, and fear of victimization, predict their decision to stay home from school. Therefore, based on social disorganization and resilience theories, the purpose …

Millennial Retail Employees Experiences And Perceptions Of Leaders With Body Image Modifications, Jennifer Mcclure

Walden Dissertations and Doctoral Studies

Millennials in retail account for a large portion of the U.S. workforce and have the highest number of body image modifications from tattoos, piercings, and/or gauges. Following Moustakas concept of perception, the purpose of this transcendental phenomenology study was to explore how Millennial-aged retail employees describe and experience leaders with body image modifications from tattoos, piercings, and/or gauges. Participants were sought from various retail locations and were required to be born between 1981 and 1996. Data were collected through interviews with 6 participants and the data were analyzed using Moustakas modification of the Van Kamm Method. The results showed that …

Effects Of Diagnostic Labels On College Students' Perceptions Of Children With Autism Spectrum Disorder, Sarah Grace Cowell

Honors Theses

The Center for Disease Control reports current research that indicates 1 in every 68 children in the United States has the diagnostic label of Autism Spectrum Disorder. Research literature of the past 20 years has warned of the possible dangers of labels, such as Autism Spectrum Disorder, and the potentially negative impact these labels can have on an individual throughout a lifetime.

This project investigates college students' perceptions of the label Autism Spectrum Disorder in regard to a child's educational potential and later employment. College students viewed a four-minute video of a child in solitary play. One-half of the participants …

Is Perceived Intentionality Of A Virtual Robot Influenced By The Kinematics?, Jordan Sasser

Honors Undergraduate Theses

Research has shown that in Human-Human Interactions kinematic information reveals that competitive and cooperative intentions are perceivable and suggests the existence of a cooperation bias. The present study invokes the same question in a Human-Robot Interaction by investigating the relationship between the acceleration of a virtual robot within a virtual reality environment and the participants perception of the situation being cooperative or competitive by attempting to identify the social cues used for those perceptions. Five trials, which are mirrored, faster acceleration, slower acceleration, varied acceleration with a loss, and varied acceleration with a win, were experienced by the participant; randomized …

A Book And Its Cover: The Effects Of Dynamic And Static Facial Expressions On The Perction Of Personality Traits, Jonathan Ojeda

All Master's Theses

This study used three dynamic and three static images of older adult men depicting either smiling, scowling, or neutral facial expressions to examine the influence of motion on emotion identification and stereotype activation, specifically the Halo Effect, in older adults (55-85 years). To that end, two hypotheses emerged: 1) older adults will be more accurate in identifying facial expressions when viewing dynamic facial expressions than static facial expressions, and 2) participants exposed to the dynamic stimuli would experience greater levels of the Halo Effect with the greatest levels in the smiling facial expression condition. A 2 (stimulus type: dynamic and …