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Articles 1 - 30 of 101
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Examining Four Blood Biomarkers For The Detection Of Acute Intracranial Abnormalities Following Mild Traumatic Brain Injury In Older Adults, Grant L. Iverson, Mira Minkkinen, Justin E. Karr, Ksenia Berghem, Henrik Zetterberg, Kaj Blennow, Jussi P. Posti, Teemu M. Luoto
Examining Four Blood Biomarkers For The Detection Of Acute Intracranial Abnormalities Following Mild Traumatic Brain Injury In Older Adults, Grant L. Iverson, Mira Minkkinen, Justin E. Karr, Ksenia Berghem, Henrik Zetterberg, Kaj Blennow, Jussi P. Posti, Teemu M. Luoto
Psychology Faculty Publications
Blood-based biomarkers have been increasingly studied for diagnostic and prognostic purposes in patients with mild traumatic brain injury (MTBI). Biomarker levels in blood have been shown to vary throughout age groups. Our aim was to study four blood biomarkers, glial fibrillary acidic protein (GFAP), ubiquitin C-terminal hydrolase-L1 (UCH-L1), neurofilament light (NF-L), and total tau (t-tau), in older adult patients with MTBI. The study sample was collected in the emergency department in Tampere University Hospital, Finland, between November 2015 and November 2016. All consecutive adult patients with head injury were eligible for inclusion. Serum samples were collected from the enrolled patients, …
A Cluster Randomized Controlled Trial For A Multi-Level, Clinic-Based Smoking Cessation Program With Women In Appalachian Communities: Study Protocol For The "Break Free" Program, Joanne G. Patterson, Tia N. Borger, Jessica L. Burris, Mark Conaway, Robert Klesges, Amie Ashcraft, Lindsay Hauser, Connie Clark, Lauren Wright, Sarah Cooper, Merry C. Smith, Mark B. Dignan, Stephenie Kennedy-Rea, Electra D. Paskett, Roger Anderson, Amy K. Ferketich
A Cluster Randomized Controlled Trial For A Multi-Level, Clinic-Based Smoking Cessation Program With Women In Appalachian Communities: Study Protocol For The "Break Free" Program, Joanne G. Patterson, Tia N. Borger, Jessica L. Burris, Mark Conaway, Robert Klesges, Amie Ashcraft, Lindsay Hauser, Connie Clark, Lauren Wright, Sarah Cooper, Merry C. Smith, Mark B. Dignan, Stephenie Kennedy-Rea, Electra D. Paskett, Roger Anderson, Amy K. Ferketich
Psychology Faculty Publications
BACKGROUND: The cervical cancer burden is high among women living in Appalachia. Cigarette smoking, a cervical cancer risk factor, is also highly prevalent in this population. This project aims to increase smoking cessation among women living in Appalachia by embedding a smoking cessation program within a larger, integrated cervical cancer prevention program.
METHODS: The broader program, the Take CARE study, is a multi-site research collaborative designed to address three risk factors for cervical cancer incidence and mortality: tobacco use, human papillomavirus (HPV) infection, and cervical cancer screening. Break Free is a primary care clinic-based implementation program that aims to promote …
Basic Behavioral Processes Involved In Procrastination, Thomas R. Zentall
Basic Behavioral Processes Involved In Procrastination, Thomas R. Zentall
Psychology Faculty Publications
Procrastination involves an irrational putting off of engaging in a course of action, in spite of expecting to be worse off for the delay. I suggest that to understand the processes underlying procrastination one should examine its relation to several behavioral procedures that have been studied in humans and other animals. For example, in delay discounting, smaller rewards that come sooner are often preferred over larger rewards that come later. In the context of delay discounting, procrastination can be viewed as the preference for an immediate competing activity over the delay to work on a required task. Another process similar …
A Preliminary Evaluation Of The Unified Protocol Among Trauma-Exposed Adults With And Without Ptsd, Caitlyn O. Hood, Matthew W. Southward, Christian Bugher, Shannon Sauer-Zavala
A Preliminary Evaluation Of The Unified Protocol Among Trauma-Exposed Adults With And Without Ptsd, Caitlyn O. Hood, Matthew W. Southward, Christian Bugher, Shannon Sauer-Zavala
Psychology Faculty Publications
The purpose of this study was to evaluate whether the Unified Protocol (UP)—a mechanistically transdiagnostic psychological treatment—provides benefit to individuals with a range of trauma histories, psychological difficulties, and diagnostic comorbidity. Using data from a sequential multiple-assignment randomized trial (SMART), this exploratory analysis included a sample of 69 community-recruited adults seeking outpatient mental health treatment. We examined reductions in anxiety and depressive symptoms and changes in aversive and avoidant reactions to intense emotions—the UP’s putative mechanism—first by comparing individuals with and without trauma histories and then specifically among participants with PTSD. Findings suggest that the UP may lead to similar …
Mitochondrial Phenotypes In Purified Human Immune Cell Subtypes And Cell Mixtures, Shannon Rausser, Caroline Trumpff, Marlon A. Mcgill, Alex Junker, Wei Wang, Siu-Hong Ho, Anika Mitchell, Kalpita R. Karan, Catherine Monk, Suzanne C. Segerstrom, Rebecca G. Reed, Martin Picard
Mitochondrial Phenotypes In Purified Human Immune Cell Subtypes And Cell Mixtures, Shannon Rausser, Caroline Trumpff, Marlon A. Mcgill, Alex Junker, Wei Wang, Siu-Hong Ho, Anika Mitchell, Kalpita R. Karan, Catherine Monk, Suzanne C. Segerstrom, Rebecca G. Reed, Martin Picard
Psychology Faculty Publications
Using a high-throughput mitochondrial phenotyping platform to quantify multiple mitochondrial features among molecularly defined immune cell subtypes, we quantify the natural variation in mitochondrial DNA copy number (mtDNAcn), citrate synthase, and respiratory chain enzymatic activities in human neutrophils, monocytes, B cells, and naïve and memory T lymphocyte subtypes. In mixed peripheral blood mononuclear cells (PBMCs) from the same individuals, we show to what extent mitochondrial measures are confounded by both cell type distributions and contaminating platelets. Cell subtype-specific measures among women and men spanning four decades of life indicate potential age- and sex-related differences, including an age-related elevation in mtDNAcn, …
Improving The Methodology For Identifying Mild Cognitive Impairment In Intellectually High-Functioning Adults Using The Nih Toolbox Cognition Battery, Grant L. Iverson, Justin E. Karr
Improving The Methodology For Identifying Mild Cognitive Impairment In Intellectually High-Functioning Adults Using The Nih Toolbox Cognition Battery, Grant L. Iverson, Justin E. Karr
Psychology Faculty Publications
Objective: Low scores on neuropsychological tests are considered objective evidence of mild cognitive impairment. In clinical practice and research, it can be challenging to identify a cognitive deficit or mild cognitive impairment in high-functioning people because they are much less likely to obtain low test scores. This study was designed to improve the methodology for identifying mild cognitive impairment in adults who have above average or superior intellectual abilities.
Method: Participants completed the National Institutes of Health Toolbox for the Assessment of Neurological and Behavioral Function Cognition Battery (NIHTB-CB). The sample included 384 adults between the ages of 20 and …
Math Predictors Of Numeric Health And Non-Health Decision-Making Problems, Clarissa A. Thompson, Jennifer M. Taber, Charles J. Fitzsimmons, Pooja G. Sidney
Math Predictors Of Numeric Health And Non-Health Decision-Making Problems, Clarissa A. Thompson, Jennifer M. Taber, Charles J. Fitzsimmons, Pooja G. Sidney
Psychology Faculty Publications
People frequently encounter numeric information in medical and health contexts. In this paper, we investigated the math factors that are associated with decision-making accuracy in health and non-health contexts. This is an important endeavor given that there is relatively little cross-talk between math cognition researchers and those studying health decision making. Ninety adults (M = 37 years; 86% White; 51% male) answered hypothetical health decision-making problems, and 93 adults (M = 36 years; 75% White; 42% males) answered a non-health decision-making problem. All participants were recruited from an online panel. Each participant completed a battery of tasks involving objective math …
Effect Of Environmental Enrichment On The Brain And On Learning And Cognition By Animals, Thomas R. Zentall
Effect Of Environmental Enrichment On The Brain And On Learning And Cognition By Animals, Thomas R. Zentall
Psychology Faculty Publications
The humane treatment of animals suggests that they should be housed in an environment that is rich in stimulation and allows for varied activities. However, even if one’s main concern is an accurate assessment of their learning and cognitive abilities, housing them in an enriched environment can have an important effect on the assessment of those abilities. Research has found that the development of the brain of animals is significantly affected by the environment in which they live. Not surprisingly, their ability to learn both simple and complex tasks is affected by even modest time spent in an enriched environment. …
Putting The Self In Self-Correction: Findings From The Loss-Of-Confidence Project, Julia M. Rohrer, Warren Tierney, Eric L. Uhlmann, Lisa M. Debruine, Tom Heyman, Benedict Jones, Stefan C Schmukle, Raphael Silberzahn, Rebecca M. Willén, Rickard Carlsson, Richard E. Lucas, Julia Strand, Simine Vazire, Jessica K. Witt, Thomas R. Zentall, Christopher F. Chabris, Tal Yarkoni
Putting The Self In Self-Correction: Findings From The Loss-Of-Confidence Project, Julia M. Rohrer, Warren Tierney, Eric L. Uhlmann, Lisa M. Debruine, Tom Heyman, Benedict Jones, Stefan C Schmukle, Raphael Silberzahn, Rebecca M. Willén, Rickard Carlsson, Richard E. Lucas, Julia Strand, Simine Vazire, Jessica K. Witt, Thomas R. Zentall, Christopher F. Chabris, Tal Yarkoni
Psychology Faculty Publications
Science is often perceived to be a self-correcting enterprise. In principle, the assessment of scientific claims is supposed to proceed in a cumulative fashion, with the reigning theories of the day progressively approximating truth more accurately over time. In practice, however, cumulative self-correction tends to proceed less efficiently than one might naively suppose. Far from evaluating new evidence dispassionately and infallibly, individual scientists often cling stubbornly to prior findings. Here we explore the dynamics of scientific self-correction at an individual rather than collective level. In 13 written statements, researchers from diverse branches of psychology share why and how they have …
Examining Criteria For Defining Persistent Post-Concussion Symptoms In Children And Adolescents, Grant L. Iverson, Justin E. Karr, Bruce Maxwell, Ross Zafonte, Paul D. Berkner, Nathan E. Cook
Examining Criteria For Defining Persistent Post-Concussion Symptoms In Children And Adolescents, Grant L. Iverson, Justin E. Karr, Bruce Maxwell, Ross Zafonte, Paul D. Berkner, Nathan E. Cook
Psychology Faculty Publications
Researchers operationalize persistent post-concussion symptoms in children and adolescents using varied definitions. Many pre-existing conditions, personal characteristics, and current health issues can affect symptom endorsement rates in the absence of, or in combination with, a recent concussion, and the use of varied definitions can lead to differences in conclusions about persistent symptoms and recovery across studies. This study examined how endorsement rates varied by 14 different operational definitions of persistent post-concussion symptoms for uninjured boys and girls with and without pre-existing or current health problems. This cross-sectional study included a large sample (age range: 11–18) of girls (n = …
The Comparative Psychology Of Intelligence: Macphail Revisited, Michael Colombo, Damian Scarf, Thomas R. Zentall
The Comparative Psychology Of Intelligence: Macphail Revisited, Michael Colombo, Damian Scarf, Thomas R. Zentall
Psychology Faculty Publications
No abstract provided.
Examining The Repeatable Battery For The Assessment Of Neuropsychological Status Validity Indices In People With Schizophrenia Spectrum Disorders, Rune Raudeberg, Justin E. Karr, Grant L. Iverson, Åsa Hammar
Examining The Repeatable Battery For The Assessment Of Neuropsychological Status Validity Indices In People With Schizophrenia Spectrum Disorders, Rune Raudeberg, Justin E. Karr, Grant L. Iverson, Åsa Hammar
Psychology Faculty Publications
Objective: We examined the frequency of possible invalid test scores on the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) in patients with schizophrenia spectrum disorders, and whether there was an association between scores on the embedded RBANS performance validity tests (PVTs) and self-reported symptoms of apathy as measured by the Initiate Scale of the Behavior Rating Inventory of Executive Function-Adult Version (BRIEF-A). Methods: Participants included 250 patients (M = 24.4 years-old, SD = 5.7) with schizophrenia spectrum disorders. Base rates of RBANS Effort Index (EI), Effort Scale (ES), and Performance Validity Index (PVI) test scores were computed. …
The Effects Of Kindergarten And First Grade Schooling On Executive Function And Academic Skill Development: Evidence From A School Cutoff Design, Matthew H. Kim, Sammy F. Ahmed, Frederick J. Morrison
The Effects Of Kindergarten And First Grade Schooling On Executive Function And Academic Skill Development: Evidence From A School Cutoff Design, Matthew H. Kim, Sammy F. Ahmed, Frederick J. Morrison
Psychology Faculty Publications
Early executive function (EF) skills reliably predict school readiness and future academic success. While children’s skills undergo rapid development during the transition to formal schooling, it remains unclear the extent to which schooling exerts a unique influence on the accelerated development of EF and academic skills during the early years of schooling. In the present study, a quasi-experimental technique known as the school cutoff design was used to examine whether same-aged children who made vs. missed the age cutoff for school entry significantly differed on EF, reading, and math outcomes. Data from 166 pre-k, kindergarten, and first grade children (Range …
Experimental Manipulations To Test Theory-Driven Mechanisms Of Cognitive Behavior Therapy, Matthew W. Southward, Shannon Sauer-Zavala
Experimental Manipulations To Test Theory-Driven Mechanisms Of Cognitive Behavior Therapy, Matthew W. Southward, Shannon Sauer-Zavala
Psychology Faculty Publications
Despite decades of randomized-controlled trials demonstrating the efficacy of cognitive-behavior therapy (CBT), the mechanisms by which CBT achieves its effects remain unclear. Here, we describe how one adaptive intervention, the sequential multiple assignment randomized trial (SMART), can be used to randomize patients at multiple decision points in treatment to draw stronger causal claims about mechanisms unfolding in the course of CBT. We illustrate this design using preliminary data and case examples from an ongoing SMART in which we are testing the role of aversive reactions to negative emotions as a hypothesized mechanism of change in the Unified Protocol. Finally, we …
Workplace Anger Costs Women Irrespective Of Race, Christopher K. Marshburn, Kevin J. Cochran, Elinor Flynn, Linda J. Levine
Workplace Anger Costs Women Irrespective Of Race, Christopher K. Marshburn, Kevin J. Cochran, Elinor Flynn, Linda J. Levine
Psychology Faculty Publications
The current research investigated the role that a person’s race, gender, and emotional expressions play in workplace evaluations of their competence and status. Previous research demonstrates that women who express anger in the workplace are penalized, whereas men are not, and may even be rewarded. Workplace sanctions against angry women are often attributed to a backlash resulting from the violation of gender stereotypes. However, gender stereotypes may differ by race. The present study addressed this question using a between-subjects experimental design where participants (N = 630) read a vignette describing a new employee, which varied with respect to the …
Age-Related Losses In Cardiac Autonomic Activity During A Daytime Nap, Pin-Chun Chen, Negin Sattari, Lauren N. Whitehurst, Sara C. Mednick
Age-Related Losses In Cardiac Autonomic Activity During A Daytime Nap, Pin-Chun Chen, Negin Sattari, Lauren N. Whitehurst, Sara C. Mednick
Psychology Faculty Publications
In healthy, young individuals, a reduction in cardiovascular output and a shift from sympathetic to parasympathetic (vagal) dominance is observed from wake into stages of nocturnal and daytime sleep. This cardiac autonomic profile, measured by heart rate variability (HRV), has been associated with significant benefits for cardiovascular health. Aging is associated with decreased nighttime sleep quality and lower parasympathetic activity during both sleep and resting. However, it is not known whether age-related dampening of HRV extends to daytime sleep, diminishing the cardiovascular benefits of naps in the elderly. Here, we investigated this question by comparing the autonomic activity profile between …
Sex Differences In Problem Alcohol Use In High School As A Function Of Recent Sexual Violence Victimization Or Perpetration, Christal L. Badour, Samuel C. Bell, Emily R. Clear, Ann L. Coker
Sex Differences In Problem Alcohol Use In High School As A Function Of Recent Sexual Violence Victimization Or Perpetration, Christal L. Badour, Samuel C. Bell, Emily R. Clear, Ann L. Coker
Psychology Faculty Publications
To investigate sex differences in associations between sexual violence victimization (SVV), sexual violence perpetration (SVP), and binge drinking and/or alcohol problems among high school students. While SVV has been linked to problem alcohol use among young women, little research has addressed the unique associations of SVV and SVP on alcohol use/problems within both sexes. A cross-sectional analysis of 16,992 high school students’ self-reports of past-year SVP and SVV was used where SVV/SVP was defined by three tactics (sexual coercion, drug/alcohol-facilitated or incapacitated sex, and physically forced sex). Alcohol measures included past-month binge drinking and past-year alcohol problems. Rates of SVV …
Personality Disorders In The Icd-11: Spanish Validation Of The Picd And The Saspd In A Mixed Community And Clinical Sample, Fernando Gutiérrez, Anton Aluja, José Ruiz, Luis F. García, Miguel Gárriz, Alfonso Gutiérrez-Zotes, David Gallardo-Pujol, Maria V. Navarro-Haro, Miquel Alabèrnia-Segura, Joan Ignasi Mestre-Pintó, Marta Torrens, Josep M Peri, Bárbara Sureda, Joaquim Soler, Juan Carlos Pascual, Gemma Vall, Natalia Calvo, Marc Ferrer, Joshua R. Oltmanns, Thomas A. Widiger
Personality Disorders In The Icd-11: Spanish Validation Of The Picd And The Saspd In A Mixed Community And Clinical Sample, Fernando Gutiérrez, Anton Aluja, José Ruiz, Luis F. García, Miguel Gárriz, Alfonso Gutiérrez-Zotes, David Gallardo-Pujol, Maria V. Navarro-Haro, Miquel Alabèrnia-Segura, Joan Ignasi Mestre-Pintó, Marta Torrens, Josep M Peri, Bárbara Sureda, Joaquim Soler, Juan Carlos Pascual, Gemma Vall, Natalia Calvo, Marc Ferrer, Joshua R. Oltmanns, Thomas A. Widiger
Psychology Faculty Publications
The International Classification of Diseases–11th revision (ICD-11) classification of personality disorders is the official diagnostic system that is used all over the world, and it has recently been renewed. However, as yet very few data are available on its performance. This study examines the Personality Inventory for ICD-11 (PiCD), which assesses the personality domains of the system, and the Standardized Assessment of Severity of Personality Disorder (SASPD), which determines severity. The Spanish versions of the questionnaires were administered to a community (n = 2,522) and a clinical sample (n = 797). Internal consistency was adequate in the PiCD …
Development And Psychometric Properties Of The Sussex-Oxford Compassion Scales (Socs), Jenny Gu, Ruth A. Baer, Kate Cavanagh, Willem Kuyken, Clara Strauss
Development And Psychometric Properties Of The Sussex-Oxford Compassion Scales (Socs), Jenny Gu, Ruth A. Baer, Kate Cavanagh, Willem Kuyken, Clara Strauss
Psychology Faculty Publications
Compassion has received increasing societal and scientific interest in recent years. The science of compassion requires a tool that can offer valid and reliable measurement of the construct to allow examination of its causes, correlates, and consequences. The current studies developed and examined the psychometric properties of new self-report measures of compassion for others and for the self, the 20-item Sussex-Oxford Compassion for Others Scale (SOCS-O) and 20-item Sussex-Oxford Compassion for the Self Scale (SOCS-S). These were based on the theoretically and empirically supported definition of compassion as comprising five dimensions: (a) recognizing suffering, (b) understanding the universality of suffering, …
Co-Prescription Network Reveals Social Dynamics Of Opioid Doctor Shopping, Brea L. Perry, Kai Cheng Yang, Patrick Kaminski, Meltem Odabas, Jaehyuk Park, Michelle M. Martel, Carrie B. Oser, Patricia R. Freeman, Yong-Yeol Ahn, Jeffery C. Talbert
Co-Prescription Network Reveals Social Dynamics Of Opioid Doctor Shopping, Brea L. Perry, Kai Cheng Yang, Patrick Kaminski, Meltem Odabas, Jaehyuk Park, Michelle M. Martel, Carrie B. Oser, Patricia R. Freeman, Yong-Yeol Ahn, Jeffery C. Talbert
Psychology Faculty Publications
This paper examines network prominence in a co-prescription network as an indicator of opioid doctor shopping (i.e., fraudulent solicitation of opioids from multiple prescribers). Using longitudinal data from a large commercially insured population, we construct a network where a tie between patients is weighted by the number of shared opioid prescribers. Given prior research suggesting that doctor shopping may be a social process, we hypothesize that active doctor shoppers will occupy central structural positions in this network. We show that network prominence, operationalized using PageRank, is associated with more opioid prescriptions, higher predicted risk for dangerous morphine dosage, opioid overdose, …
Socioemotional Selectivity And Psychological Health In Amyotrophic Lateral Sclerosis Patients And Caregivers: A Longitudinal, Dyadic Analysis, Suzanne C. Segerstrom, Edward J. Kasarskis, David W. Fardo, Philip M. Westgate
Socioemotional Selectivity And Psychological Health In Amyotrophic Lateral Sclerosis Patients And Caregivers: A Longitudinal, Dyadic Analysis, Suzanne C. Segerstrom, Edward J. Kasarskis, David W. Fardo, Philip M. Westgate
Psychology Faculty Publications
Objective: Socioemotional selectivity theory predicts that as the end of life approaches, goals and resources that provide immediate, hedonic reward become more important than those that provide delayed rewards. This study tested whether these goal domains differentially affected psychological health in the context of marital dyads in which one partner had been diagnosed with amyotrophic lateral sclerosis (ALS), a life-limiting disease.
Design: ALS patients (N = 102) being treated in three multidisciplinary clinics and their spouses (N = 100) reported their loneliness, financial worry and psychological health every 3 months for up to 18 months.
Main …
Self-Compassion And Cultural Values: A Cross-Cultural Study Of Self-Compassion Using A Multitrait-Multimethod (Mtmm) Analytical Procedure, Jesus Montero-Marin, Willem Kuyken, Catherine Crane, Jenny Gu, Ruth A. Baer, Aida A. Al-Awamleh, Satoshi Akutsu, Claudio Araya-Véliz, Nima Ghorbani, Zhuo Job Chen, Min-Sun Kim, Michail Mantzios, Danilo N. Rolim Dos Santos, Luiz C. Serramo López, Ahmed A. Teleb, P. J. Watson, Ayano Yamaguchi, Eunjoo Yang, Javier García-Campayo
Self-Compassion And Cultural Values: A Cross-Cultural Study Of Self-Compassion Using A Multitrait-Multimethod (Mtmm) Analytical Procedure, Jesus Montero-Marin, Willem Kuyken, Catherine Crane, Jenny Gu, Ruth A. Baer, Aida A. Al-Awamleh, Satoshi Akutsu, Claudio Araya-Véliz, Nima Ghorbani, Zhuo Job Chen, Min-Sun Kim, Michail Mantzios, Danilo N. Rolim Dos Santos, Luiz C. Serramo López, Ahmed A. Teleb, P. J. Watson, Ayano Yamaguchi, Eunjoo Yang, Javier García-Campayo
Psychology Faculty Publications
Self-compassion is natural, trainable and multi-faceted human capacity. To date there has been little research into the role of culture in influencing the conceptual structure of the underlying construct, the relative importance of different facets of self-compassion, nor its relationships to cultural values. This study employed a cross-cultural design, with 4,124 participants from 11 purposively sampled datasets drawn from different countries. We aimed to assess the relevance of positive and negative items when building the self-compassion construct, the convergence among the self-compassion components, and the possible influence of cultural values. Each dataset comprised undergraduate students who completed the “Self-Compassion Scale” …
Does Transcranial Direct Current Stimulation To The Prefrontal Cortex Affect Social Behavior? A Meta-Analysis, Sarah Beth Bell, Nathan Dewall
Does Transcranial Direct Current Stimulation To The Prefrontal Cortex Affect Social Behavior? A Meta-Analysis, Sarah Beth Bell, Nathan Dewall
Psychology Faculty Publications
This meta-analysis (k = 48, N = 2196) examined the effect of transcranial direct current brain stimulation (tDCS) applied to the prefrontal cortex on a variety of social behaviors, including aggression, overeating, impulsivity, bias, honesty, and risk-taking. tDCS showed an overall significant effect on reducing undesirable behaviors, with an average effect size of d = −0.20. tDCS was most effective at reducing risk-taking behavior, bias, and overeating. tDCS did not affect aggression, impulsivity, or dishonesty. We examined moderators such as brain region of interest, online vs offline stimulation, within- vs between-subjects designs, dose, and duration, but none showed significant …
The Role Of Disgust In Posttraumatic Stress: A Critical Review Of The Empirical Literature, Christal L. Badour, Matthew T. Feldner
The Role Of Disgust In Posttraumatic Stress: A Critical Review Of The Empirical Literature, Christal L. Badour, Matthew T. Feldner
Psychology Faculty Publications
The current review provides a detailed analysis of the burgeoning literature examining the role of disgust in understanding posttraumatic stress symptomatology. Research in this area generally converges to suggest (1) posttraumatic stress is associated with the experience of elevated disgust, (2) individual differences in disgust vulnerabilities may relate to increased posttraumatic stress symptom levels, (3) retrospective report of peritraumatic disgust is related to posttraumatic stress symptom levels, and (4) posttraumatic stress symptom levels appear to be associated with increased disgust, including in response to traumatic event cues. Importantly, much of this research suggests observed relations between disgust and posttraumatic stress …
When Less Is More: Mindfulness Predicts Adaptive Affective Responding To Rejection Via Reduced Prefrontal Recruitment, Alexandra M. Martelli, David S. Chester, Kirk Warren Brown, Naomi I. Eisenberger, C. Nathan Dewall
When Less Is More: Mindfulness Predicts Adaptive Affective Responding To Rejection Via Reduced Prefrontal Recruitment, Alexandra M. Martelli, David S. Chester, Kirk Warren Brown, Naomi I. Eisenberger, C. Nathan Dewall
Psychology Faculty Publications
Social rejection is a distressing and painful event that many people must cope with on a frequent basis. Mindfulness—defined here as a mental state of receptive attentiveness to internal and external stimuli as they arise, moment-to-moment—may buffer such social distress. However, little research indicates whether mindful individuals adaptively regulate the distress of rejection—or the neural mechanisms underlying this potential capacity. To fill these gaps in the literature, participants reported their trait mindfulness and then completed a social rejection paradigm (Cyberball) while undergoing functional magnetic resonance imaging. Approximately 1 hour after the rejection incident, participants reported their level of distress during …
Neural Mechanisms Of The Rejection-Aggression Link, David S. Chester, Donald R. Lynam, Richard Milich, C. Nathan Dewall
Neural Mechanisms Of The Rejection-Aggression Link, David S. Chester, Donald R. Lynam, Richard Milich, C. Nathan Dewall
Psychology Faculty Publications
Social rejection is a painful event that often increases aggression. However, the neural mechanisms of this rejection–aggression link remain unclear. A potential clue may be that rejected people often recruit the ventrolateral prefrontal cortex’s (VLPFC) self-regulatory processes to manage the pain of rejection. Using functional MRI, we replicated previous links between rejection and activity in the brain’s mentalizing network, social pain network and VLPFC. VLPFC recruitment during rejection was associated with greater activity in the brain’s reward network (i.e. the ventral striatum) when individuals were given an opportunity to retaliate. This retaliation-related striatal response was associated with greater levels of …
The Role Of Stress In The Pathogenesis And Maintenance Of Obsessive-Compulsive Disorder, Thomas G. Adams, Benjamin Kelmendi, C. Alex Brake, Patricia Gruner, Christal L. Badour, Christopher Pittenger
The Role Of Stress In The Pathogenesis And Maintenance Of Obsessive-Compulsive Disorder, Thomas G. Adams, Benjamin Kelmendi, C. Alex Brake, Patricia Gruner, Christal L. Badour, Christopher Pittenger
Psychology Faculty Publications
Individuals with obsessive-compulsive disorder often identify psychosocial stress as a factor that exacerbates their symptoms, and many trace the onset of symptoms to a stressful period of life or a discrete traumatic incident. However, the pathophysiological relationship between stress and obsessive-compulsive disorder remains poorly characterized: it is unclear whether trauma or stress is an independent cause of obsessive-compulsive disorder symptoms, a triggering factor that interacts with a preexisting diathesis, or simply a nonspecific factor that can exacerbate obsessive-compulsive disorder along with other aspects of psychiatric symptomatology. Nonetheless, preclinical research has demonstrated that stress has conspicuous effects on corticostriatal and limbic …
Modified Single Prolonged Stress Reduces Cocaine Self-Administration During Acquisition Regardless Of Rearing Environment, Rebecca S. Hofford, Mark A. Prendergast, Michael T. Bardo
Modified Single Prolonged Stress Reduces Cocaine Self-Administration During Acquisition Regardless Of Rearing Environment, Rebecca S. Hofford, Mark A. Prendergast, Michael T. Bardo
Psychology Faculty Publications
Until recently, there were few rodent models available to study the interaction of post-traumatic stress disorder (PTSD) and drug taking. Like PTSD, single prolonged stress (SPS) produces hypothalamic-pituitary-adrenal (HPA) axis dysfunction and alters psychostimulant self-administration. Other stressors, such as isolation stress, also alter psychostimulant self-administration. However, it is currently unknown if isolation housing combined with SPS can alter the acquisition or maintenance of cocaine self-administration. The current study applied modified SPS (modSPS; two hours restraint immediately followed by cold swim stress) to rats raised in an isolation condition (Iso), enrichment condition (Enr), or standard condition (Std) to measure changes in …
Nmda Receptor Blockade Specifically Impedes The Acquisition Of Incentive Salience Attribution, Jonathan J. Chow, Joshua S. Beckmann
Nmda Receptor Blockade Specifically Impedes The Acquisition Of Incentive Salience Attribution, Jonathan J. Chow, Joshua S. Beckmann
Psychology Faculty Publications
Glutamatergic signaling plays an important role in learning and memory. Using Pavlovian conditioned approach procedures, the mechanisms that drive stimulus-reward learning and memory have been investigated. However, there are instances where reward-predictive stimuli can function beyond being solely predictive and can be attributed with “motivational value” or incentive salience. Using a Pavlovian conditioned approach procedure consisting of two different but equally predictive stimuli (lever vs. tone) we investigated the role NMDA receptor function has in the attribution of incentive salience. The results revealed that the administration of MK-801, an NMDA receptor antagonist, during acquisition of Pavlovian conditioned approach promoted goal-tracking …
The Winding Road To Relapse: Forging A New Understanding Of Cue-Induced Reinstatement Models And Their Associated Neural Mechanisms, Mark D. Namba, Seven E. Tomek, M. Foster Olive, Joshua S. Beckmann, Cassandra D. Gipson
The Winding Road To Relapse: Forging A New Understanding Of Cue-Induced Reinstatement Models And Their Associated Neural Mechanisms, Mark D. Namba, Seven E. Tomek, M. Foster Olive, Joshua S. Beckmann, Cassandra D. Gipson
Psychology Faculty Publications
In drug addiction, cues previously associated with drug use can produce craving and frequently trigger the resumption of drug taking in individuals vulnerable to relapse. Environmental stimuli associated with drugs or natural reinforcers can become reliably conditioned to increase behavior that was previously reinforced. In preclinical models of addiction, these cues enhance both drug self-administration and reinstatement of drug seeking. In this review, we will dissociate the roles of conditioned stimuli as reinforcers from their modulatory or discriminative functions in producing drug-seeking behavior. As well, we will examine possible differences in neurobiological encoding underlying these functional differences. Specifically, we will …