Digital Commons Network^™

Affective Misattribution Following Memory Decisions Does Not Transfer To Interleaved Items, David Grybinas

Arts & Sciences Electronic Theses and Dissertations

The outcomes of memory search appear to have affective consequences. For instance, during recognition memory tests, concluding that a retrieval probe is from a prior study period (‘old’) leads to higher pleasantness ratings for the probe than concluding it is novel (‘new”). Grybinas, Kantner, and Dobbins (2019) explained this and related findings via a Confirmation of Search (COS) hypothesis that assumes that the affective consequences of successful versus failed episodic retrieval are misattributed to probes used to elicit memory search. While these affective misattributions clearly occur for the memory probes themselves (within-item misattribution), social psychological research has previously shown that …

The Top-Down Influences Of Characteristic Sounds On Visual Search Performance In Realistic Scenes, Ghazaleh Mahzouni

Master's Theses

The purpose of this experiment was to investigate whether meaningful sounds can facilitate visual search performance in the context of realistic scenes. It also aimed to determine whether the stimulus onset asynchrony (SOA) of sound and picture is a significant factor in enhancing performance. A 3 X 4 X 2 within subject design was used with independent factors sound congruency (congruent, incongruent and white noise), SOA (-1000, -500, 0, 300 ms), and target presence (present and absent). Participants were 55 (34 female and 21 male) college aged students at San Jose State University. On each trial participants were presented with …

"Choking" Capuchins: Hormonal Correlates Of Performance Failure Under High Pressure, Meghan Sosnowski

Psychology Theses

Succeeding under high pressure is highly beneficial not only for humans, but also for

non-human animals. I studied a captive colony of socially-living tufted capuchin monkeys as a model species to examine performance failure (or “choking”) under pressure and to see if endogenous levels of hormones correlated with likelihood to fail under high pressure. I also explored if cortisol and testosterone interacted under non-competitive paradigms of stress. I found that capuchin monkeys differed significantly in reactions to acute pressure when performing a cognitive task, with some individuals performing better and some performing worse under pressure. Cortisol interacted with testosterone – …

Visual Attention And Emotion Regulation In Schizophrenia, Bern Lee

UNLV Theses, Dissertations, Professional Papers, and Capstones

Emotion regulation and emotion processing deficits cut across the varying symptom presentations of schizophrenia. Emotion processing deficits are inadequately treated by pharmacologic interventions and are related to real-world functional impact and disability. This study investigated behavioral and psychophysiological responses to a series of emotion regulation tasks while concurrently collecting eye tracking data as an index of visual attention. A brief neurocognitive assessment was also completed in order to examine potential cognitive determinants of emotion. Participants completed tasks designed to assess cognitive change and directed attention strategies for down-regulation of unpleasant and pleasant emotion. For each of our two unpleasant emotion …

Hippocampal Extracellular Potassium Levels And Formation Of Spatial Memory In Response To Retrodialysis Insulin Administration, Gabrielle Shames

Anthropology

Insulin is the most common treatment for hyperglycemia, such as that caused by type 1 or type 2 diabetes mellitus. Insulin causes cellular uptake and storage of glucose to maintain homeostasis and also plays important roles in other systems; an important example is regulation of potassium. In the periphery, insulin administration has been shown to increase the cellular uptake of potassium via Na+/K+ ATPase, leading to hypokalemia. Research in our lab and others has shown that insulin is a key regulator of cognitive function and local metabolism within the hippocampus. To date, however, no studies have examined whether insulin acts …

The Role Of Gamma Oscillations And Cortical Inhibition In The Development Of Working Memory In Adolescence, Christopher P. Walker

Dissertations & Theses (Open Access)

Adolescence is a dynamic period of social, cognitive, and biological changes. In particular, working memory, the ability to actively encode and maintain information over a short period of time, develops early in childhood and gradually increases in capacity and stability during adolescence. The precise neurophysiological mechanism by which working memory capacity increases during adolescence is unclear. The objective of this investigation was to evaluate the role of cortical gamma-band (> 30 Hz) oscillations—which are associated with working memory in adults—for the development of working memory capacity in adolescents, and to identify the extent to which the temporal profile of gamma-aminobutyric …

Contingent Negative Variation: Sensitivity To Directed Attention, Lauren Ashley-Marie Dahlke Schenck

Electronic Theses and Dissertations

The exact nature of the contingent negative variation (CNV) event-related potential (ERP) remains unclear after decades of research. Although this ERP has long been associated with anticipation of motor responses, it remains present in the absence of physical action. Attention and arousal may better account for production of this ERP. In the current study, we examined the role directed attention may play in CNV production, while controlling for the expectancy of stimulus presentation based on the mean probability of stimulus duration. We hypothesized that if direction of attention, rather than probability of stimulus presentation, had the most pronounced effect, differences …

The Role Of Metacognition In Visual Art Education, Renae P. Mccollum

Master's Theses

Metacognition is a conscious activity that occurs in the brain when an individual monitors or controls his or her thinking. Research in multiple fields has found that metacognition plays a significant role in a person’s learning. It is currently a popular trend in general education to teach students metacognitive strategies, and research has shown that it is a practical tool to boost student success. Moreover, metacognition is most effective when it is taught explicitly and regularly practiced by the students. There is a need for more research into the effectiveness of explicitly teaching metacognition in middle and high school visual …

The Influence Of Multimodal Distractions On Computer User Performance, Ziyi Niu

Theses and Dissertations

Information systems provide users with valuable information that is relevant to users’ tasks, as well as irrelevant information that is not helpful to the user. Irrelevant information become a distraction and distract the users from their current task, there by impairing performance. Guided by distraction-conflict theory, processing efficiency theory, attentional control theory, cognitive load theory and memory for goals theory, this study investigated the distraction effect by exploring the research question, “How do task-irrelevant distractions interrupt the users of information systems and influence their performance?”. To investigate how distractions from technology influence users’ performance, this experimental research examined the relationship …

Comorbid Symptom Treatment In Parkinson’S Disease Using Neurofeedback, Joanne Mcfarland O'Rourke

Dissertations

The purpose of this research was to determine the impact of neurofeedback (NFB) on Parkinson’s symptoms that patients identify as priorities. First, a focus group of patients helped identify priority symptoms, then a pilot study tested protocols resulting from the focus group, and finally, an intervention study using a single subject design was conducted.

In the focus group, tremor and activity planning were identified as issues affecting every group member. The pilot study was conducted with three mid-stage Parkinson’s patients, who received a sensory motor (SM) protocol to address tremor, a SM plus cognition protocol (SM+Cog) for tremor and planning …

The Influence Of Tape Diagrams And Bar Models On Middle School Students' Proportional Reasoning, Katie Paulding

Boise State University Theses and Dissertations

Proportional reasoning is an integral component of adolescent mathematical cognitive development and a foundational concept for students to understand in order to be successful in higher level mathematics and science courses. Yet research indicates students struggle to proportionally reason. Task features of proportional reasoning problems are known to influence student cognition and success in problem solving, including familiarity with problem context, problem type, numerical content, and mode of task representation. The purpose of this study was to examine the influence of two iconic representations (tape diagrams and bar models) and three ratio relationships (6:3, 8:2, and 5:2) on student cognition …

Home-Based Cognitive Monitoring: The Role Of Personality And Predictors Of Adherence And Satisfaction, Nasreen A. Sadeq

USF Tampa Graduate Theses and Dissertations

Over the last several decades, a growing awareness of the benefits of regular screening for common health conditions, such as cancer and cardiovascular diseases, has paved the way for preventative screenings to become routine in medical settings. Given that cognitive impairment is frequently reported as the number one worry of older adults, home-based cognitive monitoring may be an innovative solution that allows middle aged and older adults to take an active role in monitoring an important aspect of their health. Although several home-based cognitive monitoring programs have been validated for use in clinical and home-based settings, the Cogstate Brief Battery …

Mapping Consumer Cognition And Emotions: A Neuroscientific Approach, Dongjun Rew

Theses and Dissertations

Although the rival theories for consumer decision making process, cognitive perspective and experiential perspective, have successfully contributed to the marketing discipline, there is an alternative point of view that cognition and emotions work together for a decision or even a behavior. However, the methodological limitation has been a big hurdle that interrupts insightfulness and fruitfulness of marketing research, especially in consumer research. This study thus aims to develop a brain map and functional connectivity of consumer decision making and emotions to show physiological and neurological evidence that emotional behaviors and cognitive behaviors are associated when consumers decide a behavior by …

Linking Sleep And Aggression: The Role Of Response Inhibition And Emotional Processing, Melanie L. Bozzay

USF Tampa Graduate Theses and Dissertations

Although shorter sleep duration is theorized to increase the risk of engaging in aggressive behavior, experimental studies examining this relationship yield conflicting findings. Since sleep serves in part to regulate the functioning of prefrontal brain regions, insufficient sleep may deleteriously impact the individual’s ability to inhibit rash action and alter emotional processing, which could in turn increase aggressive tendencies. However, no studies have examined the extent to which naturally occurring insufficient sleep is linked to aggression or potential mechanisms of this relationship, limiting understanding of and the generalizability of extant findings. Thus, the present study examined whether cognitive (deficits in …

The Effects Of Acute Aerobic Exercise And Caffeine On Working Memory And Caffeine Withdrawal, Anisa Morava

Electronic Thesis and Dissertation Repository

Caffeine is one of the most widely used psychoactive substances worldwide. Although caffeine elicits cognitive benefits, there are concerns regarding caffeine’s effects on certain health domains. Acute, aerobic exercise has been shown to improve cognition. The effects of aerobic exercise in comparison to caffeine on working memory (WM) in non-caffeine and caffeine consumers remains unknown. Furthermore, the effects of aerobic exercise in reducing caffeine withdrawal symptoms has yet to be examined. In Phase I, twenty-nine non-caffeine and thirty caffeine consumers completed a WM assessment, followed by aerobic exercise and caffeine administration (counterbalanced). In Phase II, twenty-five caffeine consumers underwent a …

Socioeconomically Disadvantaged Neighborhoods, Stroke Risk, And Cognition In Older Adults: A Focus On Violent Crime, Linda D. Ruiz

College of Science and Health Theses and Dissertations

Living in socioeconomically disadvantaged neighborhoods, i.e., neighborhoods with lower incomes, lower education/occupational levels, and/or higher crime, increases one’s risk of developing chronic health problems, including cardiovascular disease risk factors and stroke. These health problems are associated with reduced cognition and dementia and may help to explain disparities in brain aging. We investigated the association of neighborhood socioeconomic characteristics on stroke risk and cognitive outcomes hypothesizing that stroke risk mediates the association between the socioeconomic environment and cognitive functioning. Participants were non-demented community-dwelling older adults (N=121), ~67 years of age (50% male, 44% non-Latino Black) who underwent cognitive and medical assessments. …

A Computational Cognitive Architecture For Exploring Team Mental Models, Neil Benoit Outland

College of Science and Health Theses and Dissertations

Team Mental Models (TMM) are one of the strongest predictors of team behavior and performance. TMM direct team behaviors through the series of tasks they perform over time. Research in the area, although crucial in demonstrating the effect of TMM, has been largely static, failing to articulate specifically how TMM emerge or function in teams over time. This dissertation develops a computational model to explicate the process of TMM emergence and demonstrate necessary factors. First, I explain the core concepts of TMM emergence, including team composition, dyadic interactions, and contextual variables. Second, I develop a process-oriented theory of TMM development …

Cognitive Intra-Individual Variability: The Effects Of Affect In A Healthy Young Adult Sample, Tovah M.D. Cowan

LSU Master's Theses

Cognition is foundational to our experience of the world, but also to how psychologists understand dysfunctions. Cognitive impairment is a feature of a variety of mental disorders, but traditional assessment measures have key limitations in prediction and classification. A proposed alternative is cognitive intraindividual variability (cIIV), which is suggested to measure cognitive control or neural inefficiencies, fluctuating within a task, or over short periods of time. cIIV has been shown to be more sensitive in classification for a variety of conditions than overall performance, including in affective disorders. Further, some research suggests that cIIV is related to self-report cognitive abilities, …

Cognitive Functioning, Depression, And Strengths As Predictors Of Quality Of Life In Multiple Sclerosis, Tara Annthea Crouch

Clinical Psychology Dissertations

Patients with multiple sclerosis (MS) are at significant risk for decreased quality of life, partly due to associated cognitive impairment (Højsgaard Chow et al., 2018). A discrepancy often exists between objective and perceived measures of cognitive impairment (Middleton et al., 2006); the paths through which they predict quality of life for MS patients remain unclear (Baumstarck-Barrau, et al., 2011). Objective cognitive functioning as well as one’s perceptions of it may differentially impact quality of life, and therefore may or may not act through the same mechanisms to impact quality of life. Depression is one possible mediator known to impact quality …

The Effects Of Working Memory Capacity And Trait Anxiety On Visual Short-Term Memory Performance, Celene Gonzalez

Electronic Theses, Projects, and Dissertations

Anxiety is of importance within the field of cognition because it is often associated with adverse effects on attention, information processing, learning and memory (Eysenck, 1992, 2007). In existing literature, it has been reported that trait anxiety hinders cognitive performance (i.e., working memory capacity WMC). However, the relationship between trait anxiety and cognitive performance might be moderated by working memory capacity (WMC). For example, Owens (2014) reported that trait anxiety was negatively correlated with cognitive performance in the low WMC group and positively correlated to cognitive performance in the high WMC group. Although, past research on the working memory system …

Overactive Bladder: Shortcomings Of Current Diagnostic And Treatment Approaches And A New Etiological Paradigm, Nina L. Franzen

Master's Theses

Aims: To examine the effectiveness of the current diagnostic and treatment approach of overactive bladder (OAB) and the relative impact of cognition on what is currently a bladder-centric condition. Methods: A review of the literature on OAB from the population to organ/brain level was conducted. The impact of age-induced bladder dysfunction via cognitive changes to sensory integration and attention control are discussed. Results: OAB uses bladder-centric terminology to represent a collection of symptoms with inconsistent and often unknown pathology. Proposed etiologies and therapeutic models for overactive bladder focus on the bladder organ, but evidence suggests that age-related degradation to inhibitory …

The Impact Of Custodial Grandparenting On Levels Of Cognition In A Longitudinal Sample Of Grandparents Raising Grandchildren, Ian Timothy Mckay

Theses and Dissertations

There are currently 2.7 million grandparents raising grandchildren in the United States. As grandparenting has become more prevalent, concerns have surfaced regarding the effect of additional caregiving responsibilities placed on an aging population. The following study uses an existing dataset that interviewed individuals who graduated from Wisconsin high schools in 1957. The present study examined the impact of grandparenting on measures of cognitive ability, both cross-sectionally and longitudinally, which had yet to be examined. Findings from the cross-sectional analysis show that custodial grandparents outperformed their non-custodial grandparent counterparts on the cognitive tests of word recall, category fluency, letter fluency, and …

Evidence For Viability-Vulnerability: Early Stress Predicts Inhibition In Girls, But Not Boys At 24 Months, Marissa M. Dawson

Honors Capstones

Current literature within the field of child cognitive development lacks the understanding of the effects of child sex on cognitive development. . It is previously known that children’s social and cognitive development can be affected, positively or negatively, by outside factors, such as low socioeconomic status, but additional factors need to be examined. This study aims to fill these gaps. This study examined the associations between early cognitive development, child sex, and contextual stress through use of data from an overarching longitudinal study. Mothers completed self-report paper questionnaires, gathering basic background information and levels of anxiety and depression, at 4 …

Comparison Of An Acute Bout Of Exercise To A Sugary Snack On Energy, Mood And Cognitive Performance, Erica Knowles

Electronic Theses and Dissertations

Low perceived energy and a decline in cognitive performance throughout the day are common issues, though exercise and food consumption are suggested to improve mood and cognition. The present study compares effects of acute exercise to consuming sugar on mood, energy, and cognitive performance. Subjects underwent blood glucose testing, completed an Abbreviated Profile of Mood States Questionnaire, and Automated Operation Span (OSPAN) and Digit Span tests to measure memory and attention. On two separate days subjects consumed candy or walked on a treadmill for 10 minutes, then measurements were repeated at 30-min, 60-min, and 120-min post. Two-way ANOVA over time …

Appraising Opportunities To Better Understand Well-Being And Performance In The Organizational Sciences, Michael Paul Lerman

Doctoral Dissertations

Despite a strong base of literature that shows appraisal (i.e., an individual’s assessment of the relevance of a possibly stressful situation to their own goals and their likelihood of effectively coping with it) is an important predictor of individual emotion, behavior, and performance, appraisal has been largely relegated to theory by the organizational sciences. The purpose of this work is to demonstrate why studying appraisal adds value to organizational science phenomena. This is accomplished through two empirical essays and a theory essay. First, a metaanalysis assesses the extent to which the challenge-hindrance framework, a perspective that explicitly suggests appraisal is …

Investigating The Effects Of Intrahippocampal Glucose Administration On Spatial Working Memory In Rats, Jeremy Carter

Biological Sciences

Insulin is a peptide hormone released by beta pancreatic cells . Insulin’s best-known function is to regulate absorption of glucose into peripheral tissue: this occurs via activation of the phosphoinositide 3-kinase (PI3K) signaling cascade and subsequent translocation of glucose transporter 4 (GLUT4) to the cell surface. This canonical peripheral insulin signaling pathway appears to exist in essentially identical form within the central nervous system (CNS), so that insulin promotes entry of glucose into neural cells and subsequent increased metabolism. In order to maintain proper function, insulin-responsive hippocampal neurons and glia require glucose metabolism; a catabolic energy-yielding process that requires insulin …

Emotion Processing In The Survival Paradigm, Destiny Valentine

Psychology

The literature shows that words processed according to their survival relevance typically produce a memory advantage. Similarly, words containing an emotional connotation tend to lead to better memory. The current study examined whether combining both the survival processing effect and the emotion processing advantage would cause an interaction that amplified the effects on memory. Using a modified version of the traditional survival processing paradigm, participants rated emotion words (positive, negative, or neutral) on their relevance to a survival context or home-moving control context. They were later given a surprise recall task for the rated words. The results did not show …

Sex-Related Differences In Perception And Discrimination Of Different Speakers: An Analysis Of The Auditory Dorsal Stream Via Eeg, David Thornton

Theses and Dissertations (ETD)

Growing evidence that speech perception tasks elicit sensorimotor activity, and that this activity varies due to context, sex, cognitive load, and cognitive ability. However, it is unknown as to whether the sex of the speaker and demands of the task differentially effect males and females during speech perception tasks. This study investigated whether speaker sex and task demands (i.e. passive listening or active discrimination) influence sensorimotor and auditory cortical activity in males and females differently. Raw EEG data were collected from 27 males and 29 females during passive listening to, and discrimination of /ba/ and /da/ syllable pairs spoken by …

Validity And Reliability Of A 5-Minute Web-Camera Based Eye Tracking Test To Assess Visual Memory And Cognition, Emily Bates

Graduate Theses and Dissertations

There are approximately 5.7 million Americans currently living with Alzheimer’s Disease (AD). Early detection of cognitive impairment allows for earlier treatment, potentially slowing or halting cognitive decline. A 30-min web-camera eye tracking assessment (30-min VPC) has been validated as a tool to predict AD risk. However, a shorter version would allow for greater scalability and improve user experience. The purpose of this study was to: 1) determine the validity of the 5-minute web-camera based VPC test with the 30-min test, 2) determine the test-retest reliability of the 5-min test, 3) compare the 5-minute test scores of cognitively intact adults (18-39 …

Executive Function And Motor Skills In Preschool Children, Meggin Kelley

Undergraduate Distinction Papers

The purpose of the present study was to examine the effects of a short-term motor program on the executive function and motor skills in preschool children utilizing a Pretest and Post test design. The present study was designed with two periods of program intervention- once in the fall and once in the spring. It was hypothesized that a 10-week motor intervention would demonstrate positive motor and executive function gains in the experimental (motor) group. Children ranging from 4 to 6 years of age participated in this study. Baseline motor and executive function scores were obtained during the Pretest phase. Subsequently, …