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Full-Text Articles in Psychiatry and Psychology

Community Mobility And Depressive Symptoms During The Covid-19 Pandemic In The United States, Roy H. Perlis, Kristin Lunz Trujillo, Alauna Safarpour, Alexi Quintana, Matthew D. Simonson, Jasper Perlis, Mauricio Santillana, Katherine Ognyanova, Matthew A. Baum, James N. Druckman, David Lazer Sep 2023

Community Mobility And Depressive Symptoms During The Covid-19 Pandemic In The United States, Roy H. Perlis, Kristin Lunz Trujillo, Alauna Safarpour, Alexi Quintana, Matthew D. Simonson, Jasper Perlis, Mauricio Santillana, Katherine Ognyanova, Matthew A. Baum, James N. Druckman, David Lazer

Political Science Faculty Publications

Importance Marked elevation in levels of depressive symptoms compared with historical norms have been described during the COVID-19 pandemic, and understanding the extent to which these are associated with diminished in-person social interaction could inform public health planning for future pandemics or other disasters.

Objective To describe the association between living in a US county with diminished mobility during the COVID-19 pandemic and self-reported depressive symptoms, while accounting for potential local and state-level confounding factors.

Design, Setting, and Participants This survey study used 18 waves of a nonprobability internet survey conducted in the United States between May 2020 and April …


Cognitive Neuropsychology Of Autism, Attention- Deficit Hyperactivity Disorders And The Role That Neurodivergence Plays On Social Skills, Cognition And Behavior., Madison Mckee Sep 2023

Cognitive Neuropsychology Of Autism, Attention- Deficit Hyperactivity Disorders And The Role That Neurodivergence Plays On Social Skills, Cognition And Behavior., Madison Mckee

D.U.Quark

Many studies have investigated how structural abnormalities directly affect the brain, but few have sought to understand the experience of living with neurodivergence. Two common neurodivergent disorders, Autism and ADHD, result from an abnormal development in the frontal lobe, caudate and corpus callosum. Disruptions in these areas have inhibitory effects on behavior and nerve signaling which results in deficits in executive functioning and Theory of Mind (ToM). The presence of these disruptions provides evidence that neurodevelopmental conditions are as physical as they are enduring. The purpose of this paper is to analyze the cognitive and behavioral deficits of Autism and …


Acute Ethanol Modulates Synaptic Inhibition In The Basolateral Amygdala Via Rapid Nlrp3 Inflammasome Activation And Regulates Anxiety-Like Behavior In Rats, Soumyabrata Munshi, Lucas Albrechet-Souza, Raoni Conceição Dos-Santos, Claire E. Stelly, Maria E. Secci, Nicholas W. Gilpin, Jeffrey G. Tasker Sep 2023

Acute Ethanol Modulates Synaptic Inhibition In The Basolateral Amygdala Via Rapid Nlrp3 Inflammasome Activation And Regulates Anxiety-Like Behavior In Rats, Soumyabrata Munshi, Lucas Albrechet-Souza, Raoni Conceição Dos-Santos, Claire E. Stelly, Maria E. Secci, Nicholas W. Gilpin, Jeffrey G. Tasker

School of Graduate Studies Faculty Publications

Chronic alcohol exposure leads to a neuroinflammatory response involving activation of the nucleotide-binding oligomerization domain-like receptor protein 3 (NLRP3) inflammasome and pro-inflammatory cytokine production. Acute ethanol (EtOH) exposure activates GABAergic synapses in the central and basolateral amygdala (BLA) ex vivo, but whether this rapid modulation of synaptic inhibition is due to an acute inflammatory response and alters anxiety-like behavior in male and female animals is not known. Here, we tested the hypotheses that acute EtOH facilitates inhibitory synaptic transmission in the BLA by activating the NLRP3 inflammasome-dependent acute inflammatory response, that the alcohol-induced increase in inhibition is cell type- and …


One Size Doesn’T Fit All: Attitudes Towards Work Modify The Relation Between Parental Leave Length And Postpartum Depression, Christine Y. Chang, Sabrina R. Liu, Laura M. Glynn Sep 2023

One Size Doesn’T Fit All: Attitudes Towards Work Modify The Relation Between Parental Leave Length And Postpartum Depression, Christine Y. Chang, Sabrina R. Liu, Laura M. Glynn

Psychology Faculty Articles and Research

The present study aimed to investigate the relationship between parental leave length and maternal depressive symptoms at six- and twelve-months postpartum and whether this relation was influenced by women’s attitudes towards leave, whether leave was paid or unpaid, and the reason they returned to work. The sample included 115 working women recruited during pregnancy as part of a larger longitudinal study. Analyses revealed that maternal attitudes toward leave influenced the association between leave length and depressive symptoms. Specifically, longer leaves were associated with increased depressive symptoms for women who missed their previous activities at work. Furthermore, women who missed work …


Cumulative Incidence Of Physical And Sexual Dating Violence: Insights From A Long-Term Longitudinal Study, Jeff R Temple, Elizabeth Baumler, Leila Wood, Kelli Sargent Franco, Melissa Peskin, Christie Shumate Sep 2023

Cumulative Incidence Of Physical And Sexual Dating Violence: Insights From A Long-Term Longitudinal Study, Jeff R Temple, Elizabeth Baumler, Leila Wood, Kelli Sargent Franco, Melissa Peskin, Christie Shumate

Faculty, Staff and Student Publications

Decades of inquiry on intimate partner violence show consistent results: violence is woefully common and psychologically and economically costly. Policy to prevent and effectively intervene upon such violence hinges upon comprehensive understanding of this phenomenon at a population level. The current study prospectively estimates the cumulative incidence of sexual and physical dating violence (DV) victimization/perpetration over a 12-year timeframe (2010–2021) using diverse participants assessed annually from age 15 to 26. Data are from Waves 1–13 of an ongoing longitudinal study. Since 2010 (except for 2018 and 2019), participants were assessed on past-year physical and sexual DV victimization and perpetration. Participants …


Expressive Arts Therapy To Support Positive Experiences Of Embodiment Among Rural Lgbtq+ Adults: A Literature Review, Ann Stromgren Sep 2023

Expressive Arts Therapy To Support Positive Experiences Of Embodiment Among Rural Lgbtq+ Adults: A Literature Review, Ann Stromgren

Expressive Therapies Capstone Theses

This paper investigates the use of expressive arts therapy to support LGBTQ+ adult clients in rural communities. Caring professionals in rural areas often lack training on how to work with LGBTQ+ clients, and best practices for clinical mental health counseling with rural LGBTQ+ clients have yet to be defined. Some evidence suggests that using “metronormative” best practices with rural clients may be irrelevant or cause harm (Giano et al., 2020). Although some recommendations exist for using expressive therapies with LGBTQ+ clients, they are rarely evidence-based, as very few empirical studies exist evaluating the effectiveness of expressive therapy interventions with LGBTQ+ …


Overcoming The Inner Critic: The Therapeutic Use Of Self-Portraits With Older Adults, Brenda Echeverry Sep 2023

Overcoming The Inner Critic: The Therapeutic Use Of Self-Portraits With Older Adults, Brenda Echeverry

Expressive Therapies Capstone Theses

Older adults are a growing and vulnerable population who experience discriminatory practices that impact their access to equitable housing, employment, and healthcare which was made even more obvious during the Coronavirus pandemic in the United States. A community engagement project was developed and facilitated by the writer to support older adults with the psychological effects of surviving the pandemic. This project also helped to increase accessibility to expressive arts therapy in the writer’s local community. Expressive arts therapy is an effective and accessible method to support mental health and wellness for people of all ages. Engagement with the arts helps …


Making Mindfulness More Accessible: A Practical Guide To Trauma-Informed Mindfulness, Leslie Formby Sep 2023

Making Mindfulness More Accessible: A Practical Guide To Trauma-Informed Mindfulness, Leslie Formby

Mindfulness Studies Theses

Mindfulness is currently embedded in a growing understanding of how trauma permeates and adversely impacts peoples’ physical and psychological well-being. Increased awareness of the prevalence of trauma and its harmful effects has led to renewed interest in mindfulness to help manage the challenges generated by the detrimental effects of trauma.

These effects may draw people to mindfulness and, in turn, may make the benefits of mindfulness out of reach. Mindfulness methods and practice adaptations have been found to help trauma survivors experience the benefits of what the Buddha taught. As a support for those engaging in mindfulness and meditation, this …


Tobacco, Alcohol And Diet As Mortality Risk Factors: The Secondary Analysis Of The 25-Year Cohort Study, Alina Egorova, Bulat Idrisov, Romany Redman, Stanislav Otstavnov, Sergey Soshnikov Sep 2023

Tobacco, Alcohol And Diet As Mortality Risk Factors: The Secondary Analysis Of The 25-Year Cohort Study, Alina Egorova, Bulat Idrisov, Romany Redman, Stanislav Otstavnov, Sergey Soshnikov

Journal of Health Research

Background: Individual lifestyle risk factors have been linked to increased mortality globally; however, there is limited data on these associations in Russia. A secondary analysis of the Russia Longitudinal Monitoring Survey (RLMS) data was conducted to close this gap.

Methods: The secondary data have been obtained from a nationally-representative annual cohort survey conducted by the Higher School of Economics (HSE). In this original study, for the first time in Russia, we extracted RRs for researched risk factors. Of additional original value, we made a prospective-retrospective cohort based on a representative longitudinal survey and provided the deaths as outcomes for survival …


A Causal Inference Study: The Impact Of The Combined Administration Of Donepezil And Memantine On Decreasing Hospital And Emergency Department Visits Of Alzheimer’S Disease Patients, Ehsan Yaghmaei, Albert Pierce, Hongxia Lu, Yesha M. Patel, Louis Ehwerhemuepha, Ahmad Rezaie, Seyed Ahmad Sajjadi, Cyril Rakovski Sep 2023

A Causal Inference Study: The Impact Of The Combined Administration Of Donepezil And Memantine On Decreasing Hospital And Emergency Department Visits Of Alzheimer’S Disease Patients, Ehsan Yaghmaei, Albert Pierce, Hongxia Lu, Yesha M. Patel, Louis Ehwerhemuepha, Ahmad Rezaie, Seyed Ahmad Sajjadi, Cyril Rakovski

Mathematics, Physics, and Computer Science Faculty Articles and Research

Alzheimer’s disease is the most common type of dementia that currently affects over 6.5 million people in the U.S. Currently there is no cure and the existing drug therapies attempt to delay the mental decline and improve cognitive abilities. Two of the most commonly prescribed such drugs are Donepezil and Memantine. We formally tested and confirmed the presence of a beneficial drug-drug interaction of Donepezil and Memantine using a causal inference analysis. We applied doubly robust estimators to one of the largest and high-quality medical databases to estimate the effect of two commonly prescribed Alzheimer’s disease (AD) medications, Donepezil and …


Effect Of Caffeine In Pattern Memory And Reaction Time Test Among College Students, William T. Clark, Micheal Lawson, Garrett Garnto, Evan Smith, Kelly Massey Sep 2023

Effect Of Caffeine In Pattern Memory And Reaction Time Test Among College Students, William T. Clark, Micheal Lawson, Garrett Garnto, Evan Smith, Kelly Massey

International Undergraduate Journal of Health Sciences

Caffeine is commonly used by college students to aid in staying alert throughout the day. The purpose of this study was to determine the effects of caffeine on visual memory and reaction time performance on college students aged 18-25 years old. The Human Benchmark (https://humanbenchmark.com) Visual Memory (VM) and Reaction Time (RT) tests were used to assess participant’s baseline scores and scores 15min post treatment. Five male (19.0y ± 1.26) and four female (20.3y ± 0.43) college students volunteered to be participants in a three-week long cross-over, counterbalanced study. Blood pressure (BP) and heart rate (HR) were assessed before each …


Theories Of Consciousness And A Life Worth Living, Liad Mudrik, Myrto Mylopoulos, Niccolo Negro, Aaron Schurger Sep 2023

Theories Of Consciousness And A Life Worth Living, Liad Mudrik, Myrto Mylopoulos, Niccolo Negro, Aaron Schurger

Psychology Faculty Articles and Research

What is it that makes a life valuable? A popular view is that life’s moral worth depends in some way on its relationship to consciousness or subjective experience. But a practical application of this view requires the ability to test for consciousness, which is currently lacking. Here, we examine how theories of consciousness (ToCs) can help do so, focusing especially on difficult cases where the answer is not clear (e.g. fetuses, nonhuman animals, unresponsive brain-injured patients, and advanced artificial systems). We consider five major ToCs and what predictions they offer: Integrated information theory, Higher-Order Thought Theory, Recurrent Processing Theory, Global …


Mapping Between Cognitive Theories And Psycho-Physiological Models Of Attention System Performance, Oliver A. Guidetti, Craig P. Speelman, Peter Bouhlas Sep 2023

Mapping Between Cognitive Theories And Psycho-Physiological Models Of Attention System Performance, Oliver A. Guidetti, Craig P. Speelman, Peter Bouhlas

Research outputs 2022 to 2026

Declines in the capacity to sustain attention to repetitive, monotonous tasks is a phenomenon known as vigilance decrement (Endsley M, Kiris E. The out-of-the-loop performance problem and level of control in automation. 1995. Hum Factors. 37:32-64). This review compares cognitive theories with psycho-physiological models of vigilance decrement, and a gap is identified in mapping between the 2. That is, theories of vigilance decrement refer to "cognitive" resources; by contrast, psychophysiological models of the cerebral systems associated with attention explain performance functions according to neurochemical resources. A map does not currently exist in the literature that bridges the gap between cognitive …


Individual Difference Correlates Of Being Sexually Unrestricted Yet Declining An Hiv Test, Nicholas S. Holtzman, Stephen W. Carden, Stacy W. Smallwood, Janice Steirn, S. Mason Garrison Sep 2023

Individual Difference Correlates Of Being Sexually Unrestricted Yet Declining An Hiv Test, Nicholas S. Holtzman, Stephen W. Carden, Stacy W. Smallwood, Janice Steirn, S. Mason Garrison

Mathematical Sciences: Faculty Publications

Which individual differences accurately predict one’s decision to get tested for human immunodeficiency virus (HIV), and do individuals who have regular short-term sex get tested at higher rates? Two studies—one lab study (total valid N = 69, with n = 20 who were tested) and one involving a student health center (valid N = 250, n = 4 who were tested)—involved participants (total valid N = 319, with n = 24 who got tested) taking a number of personality and individual difference measures, including the dark triad (Machiavellianism, narcissism, and psychopathy). Then, in both studies, participants had the opportunity to …


The Difficulty In The Diagnosis And Management Of Antidepressant Discontinuation Syndrome, Sidney Charm D. Reyes Sep 2023

The Difficulty In The Diagnosis And Management Of Antidepressant Discontinuation Syndrome, Sidney Charm D. Reyes

School of Medicine Publications

Background: Antidepressant discontinuation syndrome (ADS) is a condition that occurs in about 20% of patients following the abrupt reduction/stoppage of any antidepressant medication that has been taken continuously for at least one month.

Case Presentation: We present a 36-year-old Hispanic woman who initially presented for evaluation of flu-like symptoms (subjective fever, rhinorrhea) and worsening body aches, trouble sleeping, and headaches for the past three days. She also reported recent exposure to a sick co-worker. Rapid flu, strep, and COVID tests came back negative. Pt was diagnosed with a viral URI and was discharged with counseling on supportive treatment. The patient …


Evidence Of Neurovascular Water Exchange And Endothelial Vascular Dysfunction In Schizophrenia: An Exploratory Study, Eric L Goldwaser, Danny J J Wang, Bhim M Adhikari, Joshua Chiappelli, Xingfeng Shao, Jiaao Yu, Tong Lu, Shuo Chen, Wyatt Marshall, Alexa Yuen, Mark Kvarta, Yizhou Ma, Xiaoming Du, Si Gao, Osamah Saeedi, Heather Bruce, Patrick Donnelly, Hugh O'Neill, Alan R Shuldiner, Braxton D Mitchell, Peter Kochunov, L Elliot Hong Sep 2023

Evidence Of Neurovascular Water Exchange And Endothelial Vascular Dysfunction In Schizophrenia: An Exploratory Study, Eric L Goldwaser, Danny J J Wang, Bhim M Adhikari, Joshua Chiappelli, Xingfeng Shao, Jiaao Yu, Tong Lu, Shuo Chen, Wyatt Marshall, Alexa Yuen, Mark Kvarta, Yizhou Ma, Xiaoming Du, Si Gao, Osamah Saeedi, Heather Bruce, Patrick Donnelly, Hugh O'Neill, Alan R Shuldiner, Braxton D Mitchell, Peter Kochunov, L Elliot Hong

Faculty, Staff and Student Publications

BACKGROUND AND HYPOTHESIS: Mounting evidence supports cerebrovascular contributions to schizophrenia spectrum disorder (SSD) but with unknown mechanisms. The blood-brain barrier (BBB) is at the nexus of neural-vascular exchanges, tasked with regulating cerebral homeostasis. BBB abnormalities in SSD, if any, are likely more subtle compared to typical neurological insults and imaging measures that assess large molecule BBB leakage in major neurological events may not be sensitive enough to directly examine BBB abnormalities in SSD.

STUDY DESIGN: We tested the hypothesis that neurovascular water exchange (Kw) measured by non-invasive diffusion-prepared arterial spin label MRI (n = 27 healthy controls [HC], n = …


Open-Label Study Of Consecutive Ibogaine And 5-Meo-Dmt Assisted-Therapy For Trauma-Exposed Male Special Operations Forces Veterans: Prospective Data From A Clinical Program In Mexico, Alan Kooi Davis, Yitong Xin, Nathan Sepeda, Lynnette A Averill Sep 2023

Open-Label Study Of Consecutive Ibogaine And 5-Meo-Dmt Assisted-Therapy For Trauma-Exposed Male Special Operations Forces Veterans: Prospective Data From A Clinical Program In Mexico, Alan Kooi Davis, Yitong Xin, Nathan Sepeda, Lynnette A Averill

Staff and Researcher Publications

Background: Research in psychedelic medicine has focused primarily on civilian populations. Further study is needed to understand whether these treatments are effective for Veteran populations.

Objectives: Here, we examine the effectiveness of psychedelic-assisted therapy among trauma-exposed Special Operations Forces Veterans (SOFV) seeking treatment for cognitive and mental health problems in Mexico.

Methods: Data were collected from an ibogaine and 5-methoxy-N,N-dimethyltryptamine (5-MeO-DMT) clinical treatment program for SOFV with a history of trauma exposure. This clinical program collects prospective clinical program evaluation data, such as background characteristics, symptom severity, functioning (e.g., satisfaction with life, posttraumatic stress disorder symptoms, depression symptoms, anxiety symptoms, …


Prevalence Of Depression In Patients With Hematologic Diseases In Marrakesh, Morocco: A Single Center Experience, Fatima Zahra Lahlimi, Oumaima Maghnouj, Khawla Khalil, Safaa Chaabane, Illias Tazi Sep 2023

Prevalence Of Depression In Patients With Hematologic Diseases In Marrakesh, Morocco: A Single Center Experience, Fatima Zahra Lahlimi, Oumaima Maghnouj, Khawla Khalil, Safaa Chaabane, Illias Tazi

Journal of Community Hospital Internal Medicine Perspectives

Depression in patients with cancer influences negatively their physical symptoms, treatment success, coping, and their quality of life, and it is associated with increased mortality. Reported prevalence of emotional distress in patients followed in hematology varies widely across studies. The present study aimed to investigate the prevalence of depression, and to explore the possible associated factors in patients followed in a hematological department Method: in this descriptive cross-sectional study among patients admitted to the hematology department in the University Hospital Mohammed VI of Marrakech, between August 2020 and December 2020, depression symptoms were assessed using Mini International Neuropsychiatric Interview test …


Embodiment In Online Education: Promising Practices, Mariah M. Lefeber, Tomoyo Kawano, Valerie Blanc Sep 2023

Embodiment In Online Education: Promising Practices, Mariah M. Lefeber, Tomoyo Kawano, Valerie Blanc

Faculty Publications - Graduate School of Counseling

Embodied experiential learning is central to dance/movement therapy (DMT) education. During the pandemic, DMT educators pivoted to hybrid-online educational delivery and attended to multiple dimensions of student learning and societal crises while attempting to maintain educational quality. Building on the Community of Inquiry (CoI) framework and embodied aesthetic theo-ries of care, the authors explored how educators and supervisors accounted for embodied learning in DMT education and training in an online setting. Data were generated and analysed reflexively from a preliminary conference workshop survey and workshop interactions. An aesthetic, relational experience of caring may be incorporated into an online learning space …


Two Decades Of Coparenting Research: A Scoping Review, Cynthia G. Campbell Sep 2023

Two Decades Of Coparenting Research: A Scoping Review, Cynthia G. Campbell

Psychological Sciences Faculty Publications and Presentations

In response to recent theoretical advances in coparenting and increased scholarly interest, coparenting research in resident families has burgeoned in the past twenty years making it difficult to assess primary findings. This review integrates findings from the research and provides an overview of supported conclusions, offering access to the research in a manageable and approachable form. Research evidence demonstrates how the characteristics of each parent, the state of their romantic relationship, the contexts in which they reside, and their child’s characteristics all influence how they function as a coparental team. Positive coparenting, in turn, leads to better marital relationships, greater …


Activation Of Cell-Free Mtdna-Tlr9 Signaling Mediates Chronic Stress-Induced Social Behavior Deficits, Ashutosh Tripathi, Alona Bartosh, Carl Whitehead, Anilkumar Pillai Sep 2023

Activation Of Cell-Free Mtdna-Tlr9 Signaling Mediates Chronic Stress-Induced Social Behavior Deficits, Ashutosh Tripathi, Alona Bartosh, Carl Whitehead, Anilkumar Pillai

Faculty, Staff and Student Publications

Inflammation and social behavior deficits are associated with a number of neuropsychiatric disorders. Chronic stress, a major risk factor for depression and other mental health conditions is known to increase inflammatory responses and social behavior impairments. Disturbances in mitochondria function have been found in chronic stress conditions, however the mechanisms that link mitochondrial dysfunction to stress-induced social behavior deficits are not well understood. In this study, we found that chronic restraint stress (RS) induces significant increases in serum cell-free mitochondrial DNA (cf-mtDNA) levels in mice, and systemic Deoxyribonuclease I (DNase I) treatment attenuated RS-induced social behavioral deficits. Our findings revealed …


Medical Students' Attitudes And Beliefs Toward Psilocybin: Does Terminology And Personal Experience With Psychedelics Matter?, Antonio F Pagán, Claudia Lex, Jair C Soares, Thomas D Meyer Sep 2023

Medical Students' Attitudes And Beliefs Toward Psilocybin: Does Terminology And Personal Experience With Psychedelics Matter?, Antonio F Pagán, Claudia Lex, Jair C Soares, Thomas D Meyer

Faculty, Staff and Student Publications

BACKGROUND: Psilocybin and psychedelic-assisted therapy (PAT) have gained renewed interest due to recent findings that PAT can enhance therapeutic outcomes. In 2019, the U.S. Food & Drug Administration (FDA) approved breakthrough therapy status to psilocybin for the treatment of depression, but PAT has yet to be approved as a therapeutic treatment for mental health disorders. Should the FDA approve PAT, medical students will serve as gatekeepers to PAT.

METHODS: Medical students (

RESULTS: Regardless of the terminology utilized, medical students held overall positive attitudes but their attitudes were significantly more positive when the term "psilocybin" was used. Furthermore, experience with …


Current Curricular Trends After The Covid-19 Pandemic: A National Survey Of Psychiatry Residency Programs, Jeff Wang Jin, Kacy Smith, Amanda Helminiak, Vineeth John, Hanjing Emily Wu Sep 2023

Current Curricular Trends After The Covid-19 Pandemic: A National Survey Of Psychiatry Residency Programs, Jeff Wang Jin, Kacy Smith, Amanda Helminiak, Vineeth John, Hanjing Emily Wu

Faculty, Staff and Student Publications

OBJECTIVES: During the COVID-19 pandemic, many psychiatry residencies (academic, community, and hybrid programs) have adopted different learning modalities to preserve a high quality of educational training. There is minimal data on specific program adaptations, related change perspectives, and program type stratification. This study sought to examine trends in curriculum changes in accredited psychiatry residency programs in the United States.

METHODS: Program directors of accredited general psychiatry programs in the United States were surveyed to assess both general program details and changes in educational content, delivery, and perspectives with regard to program curricula.

RESULTS: A total of 63 program directors out …


Visualizing Dopamine Activity In Deletion Of D2 Receptors In Medium Spiny Neurons, Kunhee Lee Sep 2023

Visualizing Dopamine Activity In Deletion Of D2 Receptors In Medium Spiny Neurons, Kunhee Lee

Dissertations, Theses, and Capstone Projects

Dopamine has been implicated in motivated behaviors and reinforcement learning. In this study, we are looking at the role of dopamine in allocating efforts when obtaining reward. Using Cre recombinase genetic tool, D2 receptors in striatal indirect pathway neurons were selectively deleted, and dopamine signal was recorded in ventral striatum using fiber photometry. Behaviorally, D2 receptor deletion resulted in less effort in a Progressive Ratio (PR) paradigm shown by decreased breakpoint, number of presses, and reward pellets earned. Due to the previous evidence that dopamine positively modulates effort, we hypothesized that there would be less dopamine release in D2 deleted …


Attenuated Typicality Effect In Category-Based Inferences: Implications For Autism Spectrum Disorder, Janani Rajagopalan Sep 2023

Attenuated Typicality Effect In Category-Based Inferences: Implications For Autism Spectrum Disorder, Janani Rajagopalan

Dissertations, Theses, and Capstone Projects

Individuals diagnosed with Autism Spectrum Disorder (ASD) often encounter challenges in assimilating atypical exemplars into their categorical prototypes, a cognitive hurdle that can impact their interpretative and integrative capacities. Addressing this problem, the present research sought to develop a robust methodological approach to reduce the effect of this disparity. We examined the elements embedded within the category's internal structure, with the intention of experimentally attenuating the pronounced typicality effect, which is often exaggerated in ASD.

Across four experiments, the thesis investigated the cognitive and neural underpinnings that shape the access to the typicality gradient intrinsic to a category's structure. The …


Social And Cultural Processes That Impact Physical Activity Among South Asian Americans Managing Hypertension: A Mixed Methods Study, Sugandha Gupta Sep 2023

Social And Cultural Processes That Impact Physical Activity Among South Asian Americans Managing Hypertension: A Mixed Methods Study, Sugandha Gupta

Dissertations, Theses, and Capstone Projects

Cardiovascular disease (CVD), the number one cause of death in the U.S., disproportionately affects South Asian Americans (SAAs). Physical activity is a modifiable health behavior that can reduce cardiovascular risk. Health behaviors, such as physical activity, occur within specific social and cultural contexts and are influenced by multiple factors at multiple levels of the social ecological model. This dissertation aimed to provide a rich, culturally-informed understanding of the factors at multiple levels – individual, interpersonal, and cultural –associated with physical activity among SAAs at risk for CVD. A sequential exploratory mixed methods approach was employed to examine social and cultural …


Machine Independence Of Ultrasound-Based Quantification Of Vitreous Echodensities, Cameron Hoerig, Justin H Nguyen, Jonathan Mamou, Cedric Venuat, J Sebag, Jeffrey A Ketterling Sep 2023

Machine Independence Of Ultrasound-Based Quantification Of Vitreous Echodensities, Cameron Hoerig, Justin H Nguyen, Jonathan Mamou, Cedric Venuat, J Sebag, Jeffrey A Ketterling

Faculty, Staff and Student Publications

PURPOSE: Quantitative ultrasound (QUS) provides objective indices of Vision Degrading Myodesopsia (VDM) that correlate with contrast sensitivity (CS). To date, QUS methods were only tested on a single ultrasound machine. Here, we evaluate whether QUS measurements are machine independent.

METHODS: In this cross-sectional study, 47 eyes (24 subjects; age = 53.2 ± 14.4 years) were evaluated with Freiburg acuity contrast testing (%Weber), and ultrasonography using 2 machines: one with a 15-MHz single-element transducer and one with a 5-ring, 20-MHz annular-array. Images were acquired from each system in sequential scans. Artifact-free, log-compressed envelope data were processed to yield three parameters (mean …


What To Expect As Children Transition To Young Adults, Melissa Ponce-Rodas Sep 2023

What To Expect As Children Transition To Young Adults, Melissa Ponce-Rodas

Lake Union Herald

No abstract provided.


Demarcating Psychopathologies: Nosology, Validity, And The Taxonomic Problem In Psychiatric Medicine, Julia Zentz Kolak Sep 2023

Demarcating Psychopathologies: Nosology, Validity, And The Taxonomic Problem In Psychiatric Medicine, Julia Zentz Kolak

Dissertations, Theses, and Capstone Projects

In this dissertation, I argue that the discussion surrounding the role of values in the conceptualization of mental disorders is reproduced in critical debates surrounding the issue of reliability and validity in a psychiatric nosology. In so doing, I oppose the conventional separation of the demarcation problem and the crisis of validity in psychiatric classification, arguing instead that they are inextricably linked. After drawing out the intersection between these literatures in the conceptual history of the DSM and its much-maligned transition to an etiologically neutral taxonomy of mental disorders, I consider Carl Hempel’s proposed conciliation between descriptive and theoretical systematization …


To Produce Or Not To Produce? Contrasting The Effect Of Substance Abuse In Social Decision-Making Situations, Laurent Avila-Chauvet, Diana Mejía Cruz, Óscar García-Leal, Bruno Kluwe-Schiavon Sep 2023

To Produce Or Not To Produce? Contrasting The Effect Of Substance Abuse In Social Decision-Making Situations, Laurent Avila-Chauvet, Diana Mejía Cruz, Óscar García-Leal, Bruno Kluwe-Schiavon

Faculty, Staff and Student Publications

Substance use disorders (SUD) have been related to high criminal justice costs, expensive healthcare, social impairment, and decision-making deficits. In non-social decision-making tasks, people with SUD tend to take more risks and choose small immediate rewards than controls. However, few studies have explored how people with SUD behave in social decision-making situations where the resources and profits depend directly on participants' real-time interaction, i.e., social foraging situations. To fulfill this gap, we developed a real-time interaction task to (a) compare the proportion of producers (individuals who tend to search for food sources) and scroungers (individuals who tend to steal or …