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Articles 391 - 420 of 1558

Full-Text Articles in Behavior and Behavior Mechanisms

The Influence Of Flavor On The Abuse Liability Of A Heated Tobacco Product And Its Feasibility As A Menthol Cigarette Substitute, Augustus White Jan 2024

The Influence Of Flavor On The Abuse Liability Of A Heated Tobacco Product And Its Feasibility As A Menthol Cigarette Substitute, Augustus White

Theses and Dissertations

Heated Tobacco Products (HTPs) purport to expose people that use cigarettes to fewer of the harmful or potentially harmful constituents of tobacco while still delivering reinforcing amounts of nicotine (Auer, Concha-Lozano et al., 2017). An exemplar of the HTP class, IQOS, and its three varieties of “HeatSticks” have been authorized by the Food and Drug Administration (FDA) as “Modified Risk Tobacco Products” (MRTP). However, as the FDA is planning to ban menthol as a characterizing flavor in cigarettes, questions remain regarding whether characterizing flavors should be permitted in HTPs (FDA, 2022e). New evidence regarding HTP abuse liability (i.e., the likelihood …


Opioid System's Potential Involvement In Ketamine's Cognitive And Antidepressant-Like Effects In Rats, Fan Zhang Jan 2024

Opioid System's Potential Involvement In Ketamine's Cognitive And Antidepressant-Like Effects In Rats, Fan Zhang

Theses and Dissertations

Depression stands as one of the most pervasive mental health challenges worldwide, including the United States. Conventional antidepressants typically display a delayed onset of therapeutic action (4-8 weeks) and lack efficacy in a substantial portion of patients (over 40% of depressed patients are treatment-resistant). The dissociative anesthetic ketamine, which is a glutamatergic N-methyl-D-aspartate (NMDA) antagonist, has emerged as a promising novel treatment due to its rapid and prolonged antidepressant effects, and it is especially beneficial for treatment-resistant depression. Nevertheless, the precise neurochemical mechanisms underlying ketamine’s antidepressant properties remain elusive, hampering the development of safer and more efficacious treatments. The present …


The Influence Of Relational Frames On Climate Purchasing And Policy, Lauren Rose Hutchison Jan 2024

The Influence Of Relational Frames On Climate Purchasing And Policy, Lauren Rose Hutchison

Graduate Theses/Dissertations

Evaluative conditioning refers to the effect that occurs when two stimuli are paired together, resulting in a change in the evaluation or function of one of the stimuli. Evaluative conditioning has been researched in various fields of study, such as advertisement and public administration, but synthetization efforts of these results with a relational frame theory approach, and vice versa, have been limited. This thesis used de-identified data from prior approved research to integrate and discusses two manuscripts that provide a relational frame theory perspective to evaluative conditioning effects. Study 1 extends a previous experiment by Matthews et al. (2022) through …


Fitness Consequences Of Depressive Symptoms Vary Between Generations: Evidence From A Large Cohort Of Women Across The 20th Century, Christopher I Gurguis, Renée A Duckworth, Nicole M Bucaro, Consuelo Walss-Bass Jan 2024

Fitness Consequences Of Depressive Symptoms Vary Between Generations: Evidence From A Large Cohort Of Women Across The 20th Century, Christopher I Gurguis, Renée A Duckworth, Nicole M Bucaro, Consuelo Walss-Bass

Faculty, Staff and Student Publications

Depression has strong negative impacts on how individuals function, leading to the assumption that there is strong negative selection on this trait that should deplete genetic variation and decrease its prevalence in human populations. Yet, depressive symptoms remain common. While there has been a large body of work trying to resolve this paradox by mapping genetic variation of this complex trait, there have been few direct empirical tests of the core assumption that there is consistent negative selection on depression in human populations. Here, we use a unique long-term dataset from the National Health and Nutrition Examination Survey that spans …


Standardised Tool For The Assessment Of Bruxism, Daniele Manfredini, Jari Ahlberg, Ghizlane Aarab, Steven Bender, Alessandro Bracci, Peter A. Cistulli, Paulo Cesar Conti, Reny De Leeuw, Justin Durham, Alona Emodi-Perlman, Dominik Ettlin, Luigi M. Gallo, Birgitta Häggman-Henrikson, Christer Hublin, Takafumi Kato, Gary Klasser, Michail Koutris, Gilles J. Lavigne, Daniel Paesani, Ingrid Peroz, Peter Svensson, Peter Wetselaar, Frank Lobbezoo Dec 2023

Standardised Tool For The Assessment Of Bruxism, Daniele Manfredini, Jari Ahlberg, Ghizlane Aarab, Steven Bender, Alessandro Bracci, Peter A. Cistulli, Paulo Cesar Conti, Reny De Leeuw, Justin Durham, Alona Emodi-Perlman, Dominik Ettlin, Luigi M. Gallo, Birgitta Häggman-Henrikson, Christer Hublin, Takafumi Kato, Gary Klasser, Michail Koutris, Gilles J. Lavigne, Daniel Paesani, Ingrid Peroz, Peter Svensson, Peter Wetselaar, Frank Lobbezoo

School of Dentistry Faculty Publications

OBJECTIVE: This paper aims to present and describe the Standardised Tool for the Assessment of Bruxism (STAB), an instrument that was developed to provide a multidimensional evaluation of bruxism status, comorbid conditions, aetiology and consequences. METHODS: The rationale for creating the tool and the road map that led to the selection of items included in the STAB has been discussed in previous publications. RESULTS: The tool consists of two axes, specifically dedicated to the evaluation of bruxism status and consequences (Axis A) and of bruxism risk and etiological factors and comorbid conditions (Axis B). The tool includes 14 domains, accounting …


Nucleus Accumbens Core Single Cell Ensembles Bidirectionally Respond To Experienced Versus Observed Aversive Events, Oyku Dinckol, Noah Harris Wenger, Jennifer E Zachry, Munir Gunes Kutlu Dec 2023

Nucleus Accumbens Core Single Cell Ensembles Bidirectionally Respond To Experienced Versus Observed Aversive Events, Oyku Dinckol, Noah Harris Wenger, Jennifer E Zachry, Munir Gunes Kutlu

Rowan-Virtua School of Osteopathic Medicine Departmental Research

Fear learning is a critical feature of survival skills among mammals. In rodents, fear learning manifests itself through direct experience of the aversive event or social transmission of aversive stimuli such as observing and acting on conspecifics' distress. The neuronal network underlying the social transmission of information largely overlaps with the brain regions that mediate behavioral responses to aversive and rewarding stimuli. In this study, we recorded single cell activity patterns of nucleus accumbens (NAc) core neurons using in vivo optical imaging of calcium transients via miniature scopes. This cutting-edge imaging methodology not only allows us to record activity patterns …


Feasibility Of A Laboratory Model For Evaluating The Use Of An Alternative Response Option In Mitigating Caregiver Treatment Integrity Errors, Jessie K. Weber Dec 2023

Feasibility Of A Laboratory Model For Evaluating The Use Of An Alternative Response Option In Mitigating Caregiver Treatment Integrity Errors, Jessie K. Weber

Theses & Dissertations

The current study assessed the feasibility of a laboratory model designed to evaluate options for mitigating common caregiver errors in the implementation of destructive behavior treatment. We developed a computer-based analogue to caregiver implementation of extinction for attention-maintained destructive behavior; the model included contingencies on both caregiver errors of commission and adherence to the treatment protocol. We also conducted a preliminary investigation of the effects of participant access to alternative activities as a potential strategy for mitigating integrity errors. Participants included 14 MTurk workers or staff in a severe behavior clinic, and individual response patterns revealed distinct sensitivities to the …


Study Protocol For A Randomized Controlled Trial Of Realconsent2.0: A Web‑Based Intervention To Promote Prosocial Alcohol‑Involved Bystander Behavior In Young Men, Laura F. Salazar, Dominic J. Parrott, David Dilillo, Sarah J. Gervais, Anne Marie Schipani‑Mclaughlin, Ruschelle Leone, Kevin Swartout, Lauren Simpson, Renita Moore, Tiffany Wilson, Nyla Flowers, Haley Church, Amanda Baildon Dec 2023

Study Protocol For A Randomized Controlled Trial Of Realconsent2.0: A Web‑Based Intervention To Promote Prosocial Alcohol‑Involved Bystander Behavior In Young Men, Laura F. Salazar, Dominic J. Parrott, David Dilillo, Sarah J. Gervais, Anne Marie Schipani‑Mclaughlin, Ruschelle Leone, Kevin Swartout, Lauren Simpson, Renita Moore, Tiffany Wilson, Nyla Flowers, Haley Church, Amanda Baildon

Department of Psychology: Faculty Publications

Background Sexual violence (SV) is a significant, global public health problem, particularly among young adults. Promising interventions exist, including prosocial bystander intervention programs that train bystanders to intervene in situations at-risk for SV. However, these programs suffer from critical weaknesses: (1) they do not address the proximal effect of alcohol use on bystander decision-making and (2) they rely on self-report measures to evaluate outcomes. To overcome these limitations, we integrate new content specific to alcohol use within the context of prosocial bystander intervention into an existing, evidence-based program, RealConsent1.0. The resulting program, RealConsent2.0, aims to facilitate bystander behavior …


Integrating Stakeholder Feedback Into The Design Of A Peer-Delivered Primary Care Wellness Program: A Rapid Qualitative Study, Emily M. Johnson, Kyle Possemato, Matthew Chinman, Gala True, Jacob Hedges, Brittany N. Hampton, E. Jennifer Edelman, Stephen A. Maisto Dec 2023

Integrating Stakeholder Feedback Into The Design Of A Peer-Delivered Primary Care Wellness Program: A Rapid Qualitative Study, Emily M. Johnson, Kyle Possemato, Matthew Chinman, Gala True, Jacob Hedges, Brittany N. Hampton, E. Jennifer Edelman, Stephen A. Maisto

School of Medicine Faculty Publications

Background: Individuals seen in Primary Care with behavioral health concerns who decline behavioral health treatment may benefit from the support of peers (consumers in recovery from behavioral health concerns employed to support other consumers). Whole Health STEPS is a new intervention for Veterans in Primary Care with behavioral health concerns which combines essential elements of peers’ role and the Whole Health model using a stepped-care design. We incorporated stakeholder feedback in the Whole Health STEPS design to improve fit with Veterans, peers, and primary care settings. Methods: We conducted semi-structured qualitative interviews with VA staff using questions derived from the …


Consent Searches And Underestimation Of Compliance: Robustness To Type Of Search, Consequences Of Search, And Demographic Sample, Roseanna Sommers, Vanessa K. Bohns Dec 2023

Consent Searches And Underestimation Of Compliance: Robustness To Type Of Search, Consequences Of Search, And Demographic Sample, Roseanna Sommers, Vanessa K. Bohns

Articles

Most police searches today are authorized by citizens' consent, rather than probable cause or reasonable suspicion. The main constitutional limitation on so-called “consent searches” is the voluntariness test: whether a reasonable person would have felt free to refuse the officer's request to conduct the search. We investigate whether this legal inquiry is subject to a systematic bias whereby uninvolved decision-makers overstate the voluntariness of consent and underestimate the psychological pressure individuals feel to comply. We find evidence for a robust bias extending to requests, tasks, and populations that have not been examined previously. Across three pre-registered experiments, we approached participants …


Compliance With Human Papillomavirus Vaccination At The Hiv Outpatient Program In New Orleans, Louisiana, Tat Yau, Maria Frontini, Michael Hagensee Nov 2023

Compliance With Human Papillomavirus Vaccination At The Hiv Outpatient Program In New Orleans, Louisiana, Tat Yau, Maria Frontini, Michael Hagensee

School of Medicine Faculty Publications

Infectious Diseases Week, IDWeek 2023, October 11 - 15, 2023, Boston, MA


Evaluation Of Comparative Hiv Care Continuum Outcomes Following Three Years Of Program Implementation Of The Positivelinks Smartphone Intervention Among People With Hiv With And Without Substance Use, Jacqueline Hodges, Sylvia Caldwell, Kori Otero, Brooke Williams, Ben Elliott, Lauren Richey, Ava Lena Waldman, Rebecca Dillingham, Karen Ingersoll Nov 2023

Evaluation Of Comparative Hiv Care Continuum Outcomes Following Three Years Of Program Implementation Of The Positivelinks Smartphone Intervention Among People With Hiv With And Without Substance Use, Jacqueline Hodges, Sylvia Caldwell, Kori Otero, Brooke Williams, Ben Elliott, Lauren Richey, Ava Lena Waldman, Rebecca Dillingham, Karen Ingersoll

School of Medicine Faculty Publications

Infectious Diseases Week, IDWeek 2023, October 11 - 15, 2023, Boston, MA


Weight Gain And Weight Loss Attempts Among People With Hiv(Pwh) In Louisiana, Lauren Richey, Jonathan Schroeder, Kyle Mistretta, Hui-Yi Lin, Connie Arnold, David Welsh, John Apolzan Nov 2023

Weight Gain And Weight Loss Attempts Among People With Hiv(Pwh) In Louisiana, Lauren Richey, Jonathan Schroeder, Kyle Mistretta, Hui-Yi Lin, Connie Arnold, David Welsh, John Apolzan

School of Medicine Faculty Publications

Infectious Diseases Week, IDWeek 2023, October 11 - 15, 2023, Boston, MA


Covid‑19‑Related Risk, Resilience, And Mental Health Among Mexican American Mothers Across The First Year Of The Pandemic, Amy L. Non, Elizabeth S. Clausing, Sandraluz Lara‑Cinisomo, Kimberly L. D’Anna Hernandez Nov 2023

Covid‑19‑Related Risk, Resilience, And Mental Health Among Mexican American Mothers Across The First Year Of The Pandemic, Amy L. Non, Elizabeth S. Clausing, Sandraluz Lara‑Cinisomo, Kimberly L. D’Anna Hernandez

Center for Brain, Biology, and Behavior: Faculty Publications

Background Latina mothers have been especially affected by the pandemic and historically exhibit high rates of depression and anxiety. However, few longitudinal studies have assessed the effect of the pandemic on this vulnerable population. We hypothesized that COVID-19-related stressors would associate with psychological distress among Latina mothers across the first year of the pandemic.

Methods We investigated COVID-19-related impact, stigma, and fears across two critical time points and changes in these measures in relation to changes in maternal anxiety and depression among mothers of Mexican descent living in Southern California (n=152). Surveys were administered within 5–16 weeks of …


Traumatic Stress-Induced Increases In Anxiety-Like Behavior And Alcohol Self-Administration Are Mediated By Central Amygdala Crf1 Neurons That Project To The Lateral Hypothalamus, Marcus M. Weera, Daniel A. Webster, Rosetta S. Shackett, Federica Benvenuti, Jason W. Middleton, Nicholas W. Gilpin Nov 2023

Traumatic Stress-Induced Increases In Anxiety-Like Behavior And Alcohol Self-Administration Are Mediated By Central Amygdala Crf1 Neurons That Project To The Lateral Hypothalamus, Marcus M. Weera, Daniel A. Webster, Rosetta S. Shackett, Federica Benvenuti, Jason W. Middleton, Nicholas W. Gilpin

School of Graduate Studies Faculty Publications

Avoidance stress coping, defined as persistent internal and/or external avoidance of stress-related stimuli, is a key feature of anxiety- and stress-related disorders, and contributes to increases in alcohol misuse after stress exposure. Previous work using a rat model of predator odor stress avoidance identified corticotropin-releasing factor (CRF) signaling via CRF type-1 receptors (CRF1) in the central amygdala (CeA), as well as CeA projections to the lateral hypothalamus (LH) as key mediators of conditioned avoidance of stress-paired contexts and/or increased alcohol drinking after stress. Here, we report that CRF1-expressing CeA cells that project to the LH are preferentially activated in male …


Reduced Grey Matter Volume In Adolescents With Conduct Disorder: A Region‑Of‑Interest Analysis Using Multivariate Generalized Linear Modeling, Ru Zhang, Robert James R. Blair, Karina S. Blair, Matthew Dobbertin, Jaimie Elowsky, Johannah Bashford‑Largo, Ahria J. Dominguez, Melissa Hatch, Sahil Bajaj Nov 2023

Reduced Grey Matter Volume In Adolescents With Conduct Disorder: A Region‑Of‑Interest Analysis Using Multivariate Generalized Linear Modeling, Ru Zhang, Robert James R. Blair, Karina S. Blair, Matthew Dobbertin, Jaimie Elowsky, Johannah Bashford‑Largo, Ahria J. Dominguez, Melissa Hatch, Sahil Bajaj

Center for Brain, Biology, and Behavior: Faculty Publications

Background

Conduct disorder (CD) involves a group of behavioral and emotional problems that usually begins during childhood or adolescence. Structural brain alterations have been observed in CD, including the amygdala, insula, ventrolateral and medial prefrontal cortex, anterior cingulate cortex, and fusiform gyrus. The current study developed a multivariate generalized linear model (GLM) to differentiate adolescents with CD from typically developing (TD) adolescents in terms of grey matter volume (GMV).

Methods

The whole‐brain structural MRI data were collected from 96 adolescents with CD (mean age = 16.188 ± 1.259 years; mean IQ = 104.292 ± 8.107 ; 63 males) and 90 …


Virtual Delivery Of Stress Management And Resiliency Training (Smart) During The Covid-19 Pandemic To Hematology/Oncology Fellows: A Pilot Study, Colt Williams, Sherry Chesak, Deirdre R. Pachman, Ross Dierkhising, Laura Rhee, Konstantinos Leventakos Nov 2023

Virtual Delivery Of Stress Management And Resiliency Training (Smart) During The Covid-19 Pandemic To Hematology/Oncology Fellows: A Pilot Study, Colt Williams, Sherry Chesak, Deirdre R. Pachman, Ross Dierkhising, Laura Rhee, Konstantinos Leventakos

Journal of Wellness

Introduction: Medical trainees experience a high degree of stress that predisposes them to burnout. This pilot study tested a scalable approach to deliver a validated resilience program (Stress Management and Resiliency Training (SMART)) among Hematology/Oncology fellows at an academic medical center.

Methods: This was a mixed-methods, prospective, single-arm clinical trial involving Hematology/Oncology fellows at Mayo Clinic in Rochester, MN, USA. Four one-hour training sessions were conducted virtually with 26 fellows. Stress, burnout, and emotional resilience were measured at baseline, three months, and six months post-intervention using the Perceived Stress Scale (PSS-10), Maslach Burnout Inventory (MBI-HSS), and Connor-Davidson Resilience …


Relation Between Fine And Gross Motor Skills And Observation Of Sociocultural Factors Across The First Year Of Infancy, Erika Garcia Mora Nov 2023

Relation Between Fine And Gross Motor Skills And Observation Of Sociocultural Factors Across The First Year Of Infancy, Erika Garcia Mora

LSU Doctoral Dissertations

The development of independent arms-free sitting, which frees an infant’s arms to explore objects in their environment (Soska & Adolph, 2014) is observed to propagate an increase in the frequency of manual and manipulatory actions (Marcinowski, et al., 2019; Mlincek, et. al., 2022). Active object exploration provides the infant with more sensory information of the fundamental characteristics of objects in their environment. Thus, this dissertation examined the quality and quantity of object exploration across seated postures.

Additionally, the literature claiming that infants raised in low-income households having fewer resources for effective development is being countered by considering a more holistic …


Momentary Shame & Executive Function: Negative Self-Attribution As A Precursor To Performance Error, Mary M. Bryan Oct 2023

Momentary Shame & Executive Function: Negative Self-Attribution As A Precursor To Performance Error, Mary M. Bryan

Master's Theses & Other Graduate Student Works

Individuals who experience momentary shame experiences may attribute a sense of wrongdoing to their identity. Witnessing one's violation of social mores may promote withdrawal, rumination, and/or aggression, which may restrict cognitive processes that affect typical executive function. In particular, task initiation, inhibition, and cognitive flexibility were selected when measuring levels of executive dysfunction. 10 participants were asked to complete shame and executive function pre-screeners, a shame- or neutral-affective writing task, and a real-time executive function measure. Results suggest that those who self-reported higher levels of shame proneness and underwent a shame-affective stimulus may have displayed improved inhibition and cognitive flexibility. …


The Design And Impact Of A Clinic-Based Community Program On Food Insecurity, Healthy Eating Behaviors, And Mood, Tiffany Wesley Ardoin, Elizabeth Perry, Chelsea Morgan, Jared Hymowitz, Donald Mercante Oct 2023

The Design And Impact Of A Clinic-Based Community Program On Food Insecurity, Healthy Eating Behaviors, And Mood, Tiffany Wesley Ardoin, Elizabeth Perry, Chelsea Morgan, Jared Hymowitz, Donald Mercante

School of Medicine Faculty Publications

Food insecurity is a national issue that disproportionately impacts Louisiana citizens, contributing to the state’s poor health outcomes. We know that the Supplemental Nutrition Assistance Program (SNAP) and food pantries improve access to food, but we have limited data on what interventions improve food insecurity. The Geaux Get Healthy Clinical Program at Our Lady of the Lake (GGHOLOL) is a clinic-based community program that leverages community partnerships and a clinical setting to provide education and access to resources for individuals with food insecurity. This prospective study examines the impact of GGHOLOL on food insecurity as a pre-post survey evaluation over …


Specialized Late Cingulo-Opercular Network Activation Elucidates The Mechanisms Underlying Decisions About Ambiguity, Jordan E. Pierce, Nathan M. Petro, Elizabeth Clancy, Caterina Gratton, Steven E. Petersen, Maital Neta Oct 2023

Specialized Late Cingulo-Opercular Network Activation Elucidates The Mechanisms Underlying Decisions About Ambiguity, Jordan E. Pierce, Nathan M. Petro, Elizabeth Clancy, Caterina Gratton, Steven E. Petersen, Maital Neta

Center for Brain, Biology, and Behavior: Faculty Publications

Cortical task control networks, including the cingulo-opercular (CO) network play a key role in decision-making across a variety of functional domains. In particular, the CO network functions in a performance reporting capacity that supports successful task performance, especially in response to errors and ambiguity. In two studies testing the contribution of the CO network to ambiguity processing, we presented a valence bias task in which masked clearly and ambiguously valenced emotional expressions were slowly revealed over several seconds. This slow reveal task design provides a window into the decision-making mechanisms as they unfold over the course of a trial. In …


Fornix Volumetric Increase During Aging Associates To Microglia Activation Leading To Defective Cognitive Performance, Marcela Cárdenas Tueme, Luis Ángel Trujillo-Villarreal, Victor Ramírez-Amaya, Eduardo Garza-Villarreal, Alberto Camacho-Morales, Diana Reséndez-Pérez Sep 2023

Fornix Volumetric Increase During Aging Associates To Microglia Activation Leading To Defective Cognitive Performance, Marcela Cárdenas Tueme, Luis Ángel Trujillo-Villarreal, Victor Ramírez-Amaya, Eduardo Garza-Villarreal, Alberto Camacho-Morales, Diana Reséndez-Pérez

Research Symposium

Background: Ageing displays a low-grade pro-inflammatory profile in blood and brain. It has been documented proinflammatory cytokines accumulation leading to neuroinflammation during aging. Aged brains integrate pro inflammatory cytokines accumulation, active microglia and volumetric changes which correlates with defective cognitive performance and neurodegeneration.

Methods: Mice from 2-,12- and 20-months-old of age were submitted to different memory tests: Y-maze, Barnes maze, object location test and object location test. Afterwards, we performed structural MRI to evaluate macrostructural changes related to memory and learning regions. Following this, we also evaluated in peripheral blood and in brain tissue the presence of pro-inflammatory cytokines …


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 …


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 …


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 …


Exploring The Effects Of Christian Worldviews On Heart Rate, Stress, And Adjustment After Loss In Bereaved Individuals, Emma Radini Ratnavel Aug 2023

Exploring The Effects Of Christian Worldviews On Heart Rate, Stress, And Adjustment After Loss In Bereaved Individuals, Emma Radini Ratnavel

Honors Scholar Theses

The objective of this study is to investigate the correlation between Christian values, perceptions of God, and physiological stress, assessed through heart rate, among individuals who are experiencing grief due to the loss of a loved one. Previous studies have analyzed various physiological effects on the body. There are very few studies that examine the correlation between Christian values and heart rate in bereaved participants. To explore these topics further, this study analyzes 59 undergraduate students who have recently lost a loved one, identify as a Christian, and are at least 18 years old. The participants' perceptions of God and …


Assessing Blood Oxygen Level–Dependent Signal Variability As A Biomarker Of Brain Injury In Sport-Related Concussion, Evan D. Anderson, Tanveer Talukdar, Grace Goodwin, Valentina Di Pietro, Kamal M. Yakoub, Christopher E. Zwilling, David Davies, Antonio Belli, Aron K. Barbey Aug 2023

Assessing Blood Oxygen Level–Dependent Signal Variability As A Biomarker Of Brain Injury In Sport-Related Concussion, Evan D. Anderson, Tanveer Talukdar, Grace Goodwin, Valentina Di Pietro, Kamal M. Yakoub, Christopher E. Zwilling, David Davies, Antonio Belli, Aron K. Barbey

Center for Brain, Biology, and Behavior: Faculty Publications

Mild traumatic brain injury is a complex neurological disorder of significant concern among athletes who play contact sports. Athletes who sustain sport-related concussion typically undergo physical examination and neurocognitive evaluation to determine injury severity and return-to-play status. However, traumatic disruption to neurometabolic processes can occur with minimal detectable anatomic pathology or neurocognitive alteration, increasing the risk that athletes may be cleared for return-to-play during a vulnerable period and receive a repetitive injury. This underscores the need for sensitive functional neuroimaging methods to detect altered cerebral physiology in concussed athletes. The present study compared the efficacy of Immediate Post-concussion Assessment and …


Oleoylethanolamide Facilitates Pparα And Tfeb Signaling And Attenuates Aβ Pathology In A Mouse Model Of Alzheimer’S Disease, Michele M Comerota, Manasee Gedam, Wen Xiong, Feng Jin, Lisheng Deng, Meng C Wang, Jin Wang, Hui Zheng Aug 2023

Oleoylethanolamide Facilitates Pparα And Tfeb Signaling And Attenuates Aβ Pathology In A Mouse Model Of Alzheimer’S Disease, Michele M Comerota, Manasee Gedam, Wen Xiong, Feng Jin, Lisheng Deng, Meng C Wang, Jin Wang, Hui Zheng

Faculty, Staff and Students Publications

BACKGROUND: Age is the strongest risk factor for the development of Alzheimer's disease (AD). Besides the pathological hallmarks of β-amyloid (Aβ) plaques and neurofibrillary tangles, emerging evidence demonstrates a critical role of microglia and neuroinflammation in AD pathogenesis. Oleoylethanolamide (OEA) is an endogenous lipid amide that has been shown to promote lifespan and healthspan in C. elegans through regulation of lysosome-to-nucleus signaling and cellular metabolism. The goal of our study was to determine the role of OEA in the mediation of microglial activity and AD pathology using its stable analog, KDS-5104.

METHODS: We used primary microglial cultures and genetic and …


Identification Of Structural Brain Alterations In Adolescents With Depressive Symptomatology, J. Bashford‑Largo, R. James R. Blair, Karina S. Blair, Matthew Dobbertin, Ahria Dominguez, Melissa Hatch, Sahil Bajaj Aug 2023

Identification Of Structural Brain Alterations In Adolescents With Depressive Symptomatology, J. Bashford‑Largo, R. James R. Blair, Karina S. Blair, Matthew Dobbertin, Ahria Dominguez, Melissa Hatch, Sahil Bajaj

Center for Brain, Biology, and Behavior: Faculty Publications

Introduction: Depressive symptoms can emerge as early as childhood and may lead to adverse situations in adulthood. Studies have examined structural brain alternations in individuals with depressive symptoms, but findings remain inconclusive. Furthermore, previous studies have focused on adults or used a categorical approach to assess depression. The current study looks to identify grey matter volumes (GMV) that predict depressive symptomatology across a clinically concerning sample of adolescents.

Methods: Structural MRI data were collected from 338 clinically concerning adolescents (mean age = 15.30 SD=2.07; mean IQ = 101.01 SD=12.43; 132 F). Depression symptoms were indexed via the Mood …