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Full-Text Articles in Social and Behavioral Sciences

Perceived Stress And Salivary Biomarkers In Educators: Comparison Among Three Stress Reduction Activities, Doreen Wagner, Sharon M. Pearcey Jul 2022

Perceived Stress And Salivary Biomarkers In Educators: Comparison Among Three Stress Reduction Activities, Doreen Wagner, Sharon M. Pearcey

Faculty Articles

Background: The teaching profession is a potentially stressful occupation with up to 30% of all novice teachers leaving the profession and annual teacher turnover is higher when compared with turnover of all other occupations. This study investigated the effects of a one-time stress reduction activity (meditation, yoga, or aerobic exercise) in university and K-12 educators who were part of one-day seminar on Stress Reduction.

Methods: Participants (N = 26) self-selected their stress reduction activity, completed a demographic questionnaire, educator stress self-assessment tool, and visual analogue scales indicating current stress levels. Salivary cortisol and amylase levels were measured before, immediately after, …


A Cluster Analytic Approach To Examining The Role Of Cortisol In The Development Of Post-Traumatic Stress And Dysphoria In Adult Traumatic Injury Survivors, Devi Jayan, Terri A Deroon-Cassini, Garrett Sauber, Cecilia J. Hillard, Jacklynn M. Fitzgerald Jan 2022

A Cluster Analytic Approach To Examining The Role Of Cortisol In The Development Of Post-Traumatic Stress And Dysphoria In Adult Traumatic Injury Survivors, Devi Jayan, Terri A Deroon-Cassini, Garrett Sauber, Cecilia J. Hillard, Jacklynn M. Fitzgerald

Psychology Faculty Research and Publications

Identification of specific risk factors for posttraumatic stress disorder (PTSD) versus depression after trauma has been challenging, in part due to the high comorbidity of these disorders. As exposure to trauma triggers activation of the hypothalamic-pituitary-adrenal (HPA)-axis, examining atypical stress responses via HPA-axis hormones, namely cortisol, may help in the delineation of these disorders. Indeed, extant research demonstrates that, following stress, individuals with chronic PTSD exhibit hypocortisolism (e.g., lower cortisol response than controls), while those with chronic depression exhibit hypercortisolism (e.g., higher response than controls). Less is known about the role of cortisol and these seemingly disparate profiles immediately following …


Closeness-Inducing Discussions With A Romantic Partner Increase Cortisol And Testosterone, Kristi Chin, Zachary A. Reese, Esra Ascigil, Lester Sim, Robin S. Edelstein Oct 2021

Closeness-Inducing Discussions With A Romantic Partner Increase Cortisol And Testosterone, Kristi Chin, Zachary A. Reese, Esra Ascigil, Lester Sim, Robin S. Edelstein

Research Collection School of Social Sciences

Despite progress in understanding the social neuroendocrinology of close relationship processes, most work has focused on negative experiences, such as relationship conflict or stress. As a result, much less is known about the neuroendocrine implications of positive, emotionally intimate relationship experiences. In the current study, we randomly assigned 105 dating or married couples to a 30-minute semi-structured discussion task that was designed to elicit either high or low levels of closeness. Participants provided pre- and post-task saliva samples (to assess cortisol and testosterone) and post-task reports of self-disclosure, closeness, attraction, positive and negative affect, and stress. Participants found the discussion …


The Relationship Between Infant-Family Routines, Number Of Caregivers And Infant Basal Cortisol, Vanessa Newell, Hannah B. White Sep 2021

The Relationship Between Infant-Family Routines, Number Of Caregivers And Infant Basal Cortisol, Vanessa Newell, Hannah B. White

Undergraduate Research Symposium

Background: Family routines have been found to be related to child adjustment, marital satisfaction, and parenting competence (Fiese, 2002). Persistent stress, and the resulting frequent activation of the body’s stress responses, can result in excessive wear-and-tear on the body and brain known as allostatic load (McEwen, 2000). In infants, basal cortisol levels act as an instrument to measure allostatic load (White, 2020). To our knowledge, no existing work on the impact of routines on infant development has examined the role of family structure. In traditional and minority cultures it is common for caregiving responsibilities to be divided among multiple individuals. …


Estimating The Associations Between Big Five Personality Traits, Testosterone, And Cortisol, Zachary Sundin, Lester Sim Sep 2021

Estimating The Associations Between Big Five Personality Traits, Testosterone, And Cortisol, Zachary Sundin, Lester Sim

Research Collection School of Social Sciences

Objective: Hormones are often conceptualized as biological markers of individual differences and have been associated with a variety of behavioral indicators and characteristics, such as mating behavior or acquiring and maintaining dominance. However, before researchers create strong theoretical models for how hormones modulate individual and social behavior, information on how hormones are associated with dominant models of personality is needed. Although there have been some studies attempting to quantify the associations between personality traits, testosterone, and cortisol, there are many inconsistencies across these studies. Methods: In this registered report, we examined associations between testosterone, cortisol, and Big Five personality traits. …


Indirect Effects Of Hpa Axis Dysregulation In The Association Between Peer Victimization And Depressed Affect During Early Adolescence, Ryan E. Adams, Jonathan Santo, William M. Bukowski Jul 2021

Indirect Effects Of Hpa Axis Dysregulation In The Association Between Peer Victimization And Depressed Affect During Early Adolescence, Ryan E. Adams, Jonathan Santo, William M. Bukowski

Psychology Faculty Publications

Objective

Previous research has identified a link between peer victimization and depressive symptoms during adolescence. The goal of the current study is to examine the possible indirect effects of HPA axis dysregulation in the link between adolescent peer victimization and depressive symptoms.

Method

A total of 113 boys (n = 61) and girls (n = 52) participants from grade 5 (M age = 10.31 years) and grade 6 (M age = 11.33 years) who were predominantly European-Canadian completed self-report measures of peer victimization and depressed affect as well as, measures of salivary cortisol and self-reports of …


The Effect Of Body Region On Hair Cortisol Concentration In Common Marmosets (Callithrix Jacchus), Evelyn Elizabeth Bartling-John, Kimberley A. Phillips Apr 2021

The Effect Of Body Region On Hair Cortisol Concentration In Common Marmosets (Callithrix Jacchus), Evelyn Elizabeth Bartling-John, Kimberley A. Phillips

Psychology Faculty Research

Common marmosets (Callithrix jacchus) are a valuable research model for the study of neuroscience and the biologic impact of aging due to their adaptivity, physiologic characteristics, and ease of handling for experimental manipulations. Quantification of cortisol in hair provides a noninvasive, retrospective biomarker of hypothalamics-pituitary-adrenal (HPA) axis activity and information on animal wellbeing, including responses to environmental and social stimuli. To obtain valid and reliable measurements of long-term HPA activity, we investigated the variability of cortisol concentration in the hair depending on the body region of marmosets. Hair was collected from the back and tail of 9 adult …


Maternal Cannabis Use Is Associated With Suppression Of Immune Gene Networks In Placenta And Increased Anxiety Phenotypes In Offspring, Gregory Rompala, Yoko Nomura, Yasmin L. Hurd Jan 2021

Maternal Cannabis Use Is Associated With Suppression Of Immune Gene Networks In Placenta And Increased Anxiety Phenotypes In Offspring, Gregory Rompala, Yoko Nomura, Yasmin L. Hurd

Publications and Research

While cannabis is among the most used recreational drugs during pregnancy, the impact of maternal cannabis use (mCB) on fetal and child development remains unclear. Here, we assessed the effects of mCB on psychosocial and physiological measures in young children along with the potential relevance of the in-utero environment reflected in the placental transcriptome. Children (~3-6 years) were assessed for hair hormone levels, neurobehavioral traits on the behavioral assessment system for children (BASC-2) survey, and heart rate variability (HRV) at rest and during auditory startle. For a subset of children with behavioral assessments, placental specimens collected at birth were processed …


Masculinized Second-To-Fourth Digit Ratio (2d:4d Ratio) Is Associated With Lower Cortisol Response In Infant Female Rhesus Monkeys (Macaca Mulatta), Elizabeth K. Wood, Parker Jarman, Elysha Cash, Alexander Baxter, John P. Capitanio, James Dee Higley Sep 2020

Masculinized Second-To-Fourth Digit Ratio (2d:4d Ratio) Is Associated With Lower Cortisol Response In Infant Female Rhesus Monkeys (Macaca Mulatta), Elizabeth K. Wood, Parker Jarman, Elysha Cash, Alexander Baxter, John P. Capitanio, James Dee Higley

Faculty Publications

The second-to-fourth digit ratio (2D:4D ratio) is considered a postnatal proxy measure for the degree of prenatal androgen exposure (PAE), which is the primary factor responsible for masculinizing the brain of a developing fetus. Some studies suggest that the organizational effects of PAE may extend to the hypothalamic-pituitary-adrenal (HPA) axis response to stress. This study investigates the relationship between 2D:4D ratio and HPA axis functioning using a rhesus monkey (Macaca mulatta) model. Subjects were N = 268 (180 females, 88 males) rhesus monkey infants (3–4 months of age). Plasma cortisol concentrations were assayed from two blood samples obtained …


Racial Exclusion Causes Acute Cortisol Release Among Emerging-Adult African Americans: The Role Of Reduced Perceived Control, Laurel M. Peterson, Michelle L. Stock, Janet Monroe, Brianne K. Molloy-Paolillo, Sharon F. Lambert Jan 2020

Racial Exclusion Causes Acute Cortisol Release Among Emerging-Adult African Americans: The Role Of Reduced Perceived Control, Laurel M. Peterson, Michelle L. Stock, Janet Monroe, Brianne K. Molloy-Paolillo, Sharon F. Lambert

Psychology Faculty Research and Scholarship

Racial discrimination contributes to stress-related health disparities among African Americans, but less is known about the acute effects of racial exclusion on the hypo-pituitary-adrenocortical response and psychological mediators. Participants were 276 Black/African American emerging-adults (54% female; Mage = 21.74, SD = 2.21) who were randomly assigned to be excluded or included by White peers via the game Cyberball. Racial exclusion (vs. inclusion) predicted: greater negative affect (F(1, 276) = 104.885, p < .0001), lower perceived control (F(1, 276) = 205.523, p < .0001), and greater cortisol release (F(1, 274) = 4.575, p= .033). Racial exclusion’s impact on cortisol release was mediated by lower perceived control …


Racial Exclusion Causes Acute Cortisol Release Among Emerging-Adult African Americans: The Role Of Reduced Perceived Control, Laurel M. Peterson, Michelle L. Stock, Janet Monroe, Brianne K. Molloy-Paolillo, Sharon F. Lambert Jan 2020

Racial Exclusion Causes Acute Cortisol Release Among Emerging-Adult African Americans: The Role Of Reduced Perceived Control, Laurel M. Peterson, Michelle L. Stock, Janet Monroe, Brianne K. Molloy-Paolillo, Sharon F. Lambert

Psychology Faculty Research and Scholarship

Racial discrimination contributes to stress-related health disparities among African Americans, but less is known about the acute effects of racial exclusion on the hypo-pituitary-adrenocortical response and psychological mediators. Participants were 276 Black/African American emerging-adults (54% female; M age = 21.74, SD = 2.21) who were randomly assigned to be excluded or included by White peers via the game Cyberball. Racial exclusion (vs. inclusion) predicted: greater negative affect (F(1, 276) = 104.885, p < .0001), lower perceived control (F(1, 276) = 205.523, p < .0001), and greater cortisol release (F(1, 274) = 4.575, p = .033). Racial exclusion’s impact on cortisol release was mediated by lower perceived control …


Life In A Harsh Environment: The Effects Of Age, Sex, Reproductive Condition, And Season On Hair Cortisol Concentration In A Wild Non-Human Primate, P. A. Garber, A. Mckenney, Evelyn Elizabeth Bartling-John, J. C. Bicca-Marques, M. F. De La Fuente, F. Abreu, N. Schiel, A. Souto, Kimberley A. Phillips Jan 2020

Life In A Harsh Environment: The Effects Of Age, Sex, Reproductive Condition, And Season On Hair Cortisol Concentration In A Wild Non-Human Primate, P. A. Garber, A. Mckenney, Evelyn Elizabeth Bartling-John, J. C. Bicca-Marques, M. F. De La Fuente, F. Abreu, N. Schiel, A. Souto, Kimberley A. Phillips

Psychology Faculty Research

Hair cortisol concentration (HCC) provides a long-term retrospective measure of hypothalamic–pituitary–adrenal axis activity, and is increasingly used to assess the life history, health and ecology of wild mammals. Given that sex, age, season and pregnancy influence HCC, and that it may indicate ongoing stress, we examined HCC in common marmosets (Callithrix jacchus) naturally inhabiting a hot and dry semi-desert like habitat, Caatinga, in northeastern Brazil. We trapped, measured, weighed, marked and collected shaved hair from the back of the neck of 61 wild marmosets during the wet and dry seasons. Using enzyme immunoassay, we found that HCC was …


Is One Secure Attachment Enough? Infant Cortisol Reactivity And The Security Of Infant-Mother And Infant-Father Attachments At The End Of The First Year, Patty X. Kuo, Ekjyot K. Saini, Elizabeth Tengelitsch, Brenda L. Volling Mar 2019

Is One Secure Attachment Enough? Infant Cortisol Reactivity And The Security Of Infant-Mother And Infant-Father Attachments At The End Of The First Year, Patty X. Kuo, Ekjyot K. Saini, Elizabeth Tengelitsch, Brenda L. Volling

Department of Child, Youth, and Family Studies: Faculty Publications

Attachment security is theorized to shape stress reactivity, but extant work has failed to find consistent links between attachment security to mothers and infant cortisol reactivity. We examined family configurations of infant-mother and infant-father attachment security in relation to infant cortisol reactivity. One-year old infants (N = 180) participated in the Strange Situation with mothers and fathers in two counterbalanced lab visits, one month apart (12 and 13 months). Infants with secure attachments only to their fathers and not their mothers had higher cortisol levels than infants with a secure attachment to mother and also exhibited a blunted cortisol response …


Prenatal Risk For Autism Spectrum Disorder (Asd): Fetal Cortisol Exposure Predicts Child Asd Symptoms, Sheena Ram, Mariann A. Howland, Curt A. Sandman, Elyssia Poggi Davis, Laura M. Glynn Dec 2018

Prenatal Risk For Autism Spectrum Disorder (Asd): Fetal Cortisol Exposure Predicts Child Asd Symptoms, Sheena Ram, Mariann A. Howland, Curt A. Sandman, Elyssia Poggi Davis, Laura M. Glynn

Psychology Faculty Articles and Research

The etiology of autism spectrum disorder (ASD) is multifactorial, complex, and likely involves interactions among genetic, epigenetic, and environmental factors. With respect to environmental influences, a growing literature implicates intrauterine experiences in the origin of this pervasive developmental disorder. In this prospective longitudinal study, we examined the hypothesis that fetal exposure to maternal cortisol may confer ASD risk. In addition, because ASD is four times more prevalent in males than in females, and because sexually dimorphic responses to intrauterine experiences are commonly observed, we examined whether or not any associations differ by fetal sex. Maternal plasma cortisol was measured at …


Acute Salivary Cortisol Response Among Mexican American Adolescents In Immigrant Families, Su Yeong Kim, Minyu Zhang, Katharine H. Zeiders, Lester Sim, Marci E. J. Gleason Jul 2018

Acute Salivary Cortisol Response Among Mexican American Adolescents In Immigrant Families, Su Yeong Kim, Minyu Zhang, Katharine H. Zeiders, Lester Sim, Marci E. J. Gleason

Research Collection School of Social Sciences

Objectives: Though previous research has indicated that language brokering can be stressful, the findings are mixed, pointing to potential moderators of the association. Guided by an ecological perspective, we examined the role of individual, family, and environmental factors in Mexican American adolescents’ acute cortisol responses to language brokering. Method: The study consisted of 46 Mexican American adolescents recruited around a metropolitan city in Central Texas. Participants translated a difficult medical document from English to Spanish for their parents, followed by an arithmetic task (modeled after the Trier Social Stress Test [TSST]). Participants’ perceptions (perceived efficacy and parental dependence), parental hostility, …


Stress Profile Influences Learning Approach In A Marine Fish, Vincent Raoult, Larissa Trompf, Jane E. Williamson, Culum Brown Jun 2017

Stress Profile Influences Learning Approach In A Marine Fish, Vincent Raoult, Larissa Trompf, Jane E. Williamson, Culum Brown

Personality Collection

The spatial learning skills of high and low stress juvenile mulloway (Argyrosomus japonicus) were tested in a dichotomous choice apparatus. Groups of fish were formed based on background blood cortisol levels and required to learn the location of a food reward hidden in one of two compartments. Low stress fish characterised by low background levels of the stress hormone cortisol had higher activity levels and entered both rewarded and unrewarded rooms frequently. Within the first week of exposure, however, their preference for the rewarded room increased, indicative of learning. Fish that had high background levels of cortisol, in …


Intraindividual Variability In Cortisol: Approaches, Illustrations, And Recommendations, Suzanne C. Segerstrom, Sandra E. Sephton, Philip M. Westgate Apr 2017

Intraindividual Variability In Cortisol: Approaches, Illustrations, And Recommendations, Suzanne C. Segerstrom, Sandra E. Sephton, Philip M. Westgate

Psychology Faculty Publications

Most of the variance in diurnal cortisol is attributable to intraindividual variability (IIV), defined as relatively short-term, reversible changes. Multiple methods for measuring IIV have been proposed, and some have already been applied to cortisol IIV. In the present review, measurement methods are described and applied to simulated cortisol data with known underlying differences in IIV and to real cortisol data from first-year law students. More slope variance and more residual or net variance were well captured by their individual standard deviations. Explorations of reliability suggested that 10 slopes and 50 residuals result in reliable and stable estimates of the …


Cognitive-Behavioral Therapy Augmentation Of Ssri Reduces Cortisol Levels In Older Adults With Generalized Anxiety Disorder: A Randomized Clinical Trial, Christopher B. Rosnick, Julie L. Wetherell, Kamila S. White, Carmen Andreescu, David Dixon, Eric J. Lenze Feb 2016

Cognitive-Behavioral Therapy Augmentation Of Ssri Reduces Cortisol Levels In Older Adults With Generalized Anxiety Disorder: A Randomized Clinical Trial, Christopher B. Rosnick, Julie L. Wetherell, Kamila S. White, Carmen Andreescu, David Dixon, Eric J. Lenze

SIUE Faculty Research, Scholarship, and Creative Activity

Objectives: Elevated cortisol in stress and aging, such as has been seen in late-life anxiety disorders, is postulated to accelerate cognitive and physiological decline in this large and increasing population. Selective serotonin-reuptake inhibitors (SSRIs) and cognitive behavior therapy (CBT) are both effective treatments for Generalized Anxiety Disorder (GAD) in older adults. On the other hand, there is very little research examining the effect of combining these therapies on peak cortisol levels. For the current analyses, we examined the effectiveness of CBT augmentation on peak cortisol levels in older adults diagnosed with GAD.

Methods: The sample consisted of 42 individuals with …


Hpi Reactivity Does Not Reflect Changes In Personality Among Trout Introduced To Bold Or Shy Social Groups, Jack S. Thomson, Phillip C. Watts, Tom G. Pottinger, Lynne U. Sneddon Jan 2016

Hpi Reactivity Does Not Reflect Changes In Personality Among Trout Introduced To Bold Or Shy Social Groups, Jack S. Thomson, Phillip C. Watts, Tom G. Pottinger, Lynne U. Sneddon

Social Behavior Collection

Physiological stress responses often correlate with personalities (e.g., boldness). However, this relationship can become decoupled, although the mechanisms underlying changes in this relationship are poorly understood. Here we quantify (1) how an individual’s boldness (response to novel objects) in rainbow trout, Oncorhynchus mykiss, changes in response to interactions with a population of either bold or shy conspecifics and we (2) measured associated post-stress cortisol levels. Initially-bold trout became shyer regardless of group composition, whereas shy trout remained shy demonstrating that bold individuals are more plastic. Stress-induced plasma cortisol reflected the original personality of fish but not the personality induced …


Comparison Of Cortisol Samples In The First Two Weeks Of Life In Preterm Infants, Tiffany A. Moore, Kendra K. Schmid, Jeffrey French Mar 2015

Comparison Of Cortisol Samples In The First Two Weeks Of Life In Preterm Infants, Tiffany A. Moore, Kendra K. Schmid, Jeffrey French

Psychology Faculty Publications

Background: Growing literature on negative childhood stress emphasizes the need to understand cortisol values from varying biomarker samples.

Objective: This work aimed to examine cortisol samples for usability, associations, and individual stability in neonates.

Subjects: The sample consisted of preterm infants (n=31).

Materials and methods: Analyses on cortisol collected from cord blood and from saliva and urine samples on days 1, 7, and 14 included Spearman correlations and paired t-tests.

Results: Usability rates were 80.6% (cord blood), 85.9% (saliva), and 93.5% (urine). Salivary and urinary cortisol levels had significant correlation on day 1 only (p=0.004). Significant differences in individual stability …


Stress And Eyewitness Memory: Timing Of Stressor And Association With Cortisol Stress Responding, Timothy Ryan Robicheaux Mar 2015

Stress And Eyewitness Memory: Timing Of Stressor And Association With Cortisol Stress Responding, Timothy Ryan Robicheaux

Department of Psychology: Dissertations, Theses, and Student Research

Witnesses to and victims of criminal events can face significant stress during such encounters. Stress responding consists of a multitude of responses (e.g., anxiety, cardiovascular changes, cortisol responding). In the current study, I utilized a physiological stressor (i.e., the cold-pressor test) and a facial recognition paradigm to examine the relationship between cortisol change following stress exposure and memory accuracy. More specifically, I examined whether cortisol levels at specific memory stages (i.e., acquisition and retrieval) predicted stress responding differently.

Findings suggested that individual differences in cortisol stress responding to the cold-pressor test predicted facial recognition when peak cortisol was at a …


Domestication Affects The Structure, Development And Stability Of Biobehavioural Profiles, Sylvia Kaiser, Michael B. Hennessy, Norbert Sachser Jan 2015

Domestication Affects The Structure, Development And Stability Of Biobehavioural Profiles, Sylvia Kaiser, Michael B. Hennessy, Norbert Sachser

Psychology Faculty Publications

Domestication is an evolutionary process during which the biobehavioural profile (comprising e.g. social and emotional behaviour, cognitive abilities, as well as hormonal stress responses) is substantially reshaped. Using a comparative approach, and focusing mainly on the domestic and wild guinea pig, an established model system for the study of domestication, we review (a) how wild and domestic animals of the same species differ in behaviour, emotion, cognition, and hormonal stress responses, (b) during which phases of life differences in biobehavioural profiles emerge and (c) whether or not animal personalities exist in both the wild and domestic form. Concerning (a), typical …


Serotonin Transporter Genotype Modulates Hpa Axis Output During Stress: Effect Of Stress, Dexamethasone Test And Acth Challenge, Andrea N. Sorenson, Erin C. Sullivan, Sally P. Mendoza, John P. Capitanio, James Dee Higley Jul 2014

Serotonin Transporter Genotype Modulates Hpa Axis Output During Stress: Effect Of Stress, Dexamethasone Test And Acth Challenge, Andrea N. Sorenson, Erin C. Sullivan, Sally P. Mendoza, John P. Capitanio, James Dee Higley

Faculty Publications

Background—Studies show that the hypothalamic–pituitary–adrenal (HPA) axis is dysregulated in depression. Some studies suggest that variation in the serotonin transporter genotype (hereafter 5HTT) modulates both risk for depression and psychopathological HPA axis responsiveness. Rhesus monkeys are well suited to model such relationships. Rhesus macaque models of human psychopathology have assessed the effect of the serotonin transporter (rh5HTT) on levels of cortisol in stressed subjects. These studies show that that under conditions of stress, heterozygous females (Ls) reared under adversity exhibit high levels of cortisol. Studies have not to our knowledge, however, assessed the potential additive effect on the cortisol response …


Serotonin Transporter Genotype Modulates Hpa Axis Output During Stress: Effect Of Stress, Dexamethasone Test And Acth Challenge, Andrea N. Sorenson, Erin C. Sullivan, Sally P. Mendoza, John P. Capitanio, James Dee Higley Jul 2014

Serotonin Transporter Genotype Modulates Hpa Axis Output During Stress: Effect Of Stress, Dexamethasone Test And Acth Challenge, Andrea N. Sorenson, Erin C. Sullivan, Sally P. Mendoza, John P. Capitanio, James Dee Higley

Faculty Publications

Background—Studies show that the hypothalamic–pituitary–adrenal (HPA) axis is dysregulated in depression. Some studies suggest that variation in the serotonin transporter genotype (hereafter 5HTT) modulates both risk for depression and psychopathological HPA axis responsiveness. Rhesus monkeys are well suited to model such relationships. Rhesus macaque models of human psychopathology have assessed the effect of the serotonin transporter (rh5HTT) on levels of cortisol in stressed subjects. These studies show that that under conditions of stress, heterozygous females (Ls) reared under adversity exhibit high levels of cortisol. Studies have not to our knowledge, however, assessed the potential additive effect on the cortisol response …


The Effects Of Acute Stress Exposure On Neural Correlates Of Pavlovian Conditioning With Monetary Gains And Losses, Andrea H. Lewis, Anthony J. Porcelli, Mauricio R. Delgado May 2014

The Effects Of Acute Stress Exposure On Neural Correlates Of Pavlovian Conditioning With Monetary Gains And Losses, Andrea H. Lewis, Anthony J. Porcelli, Mauricio R. Delgado

Psychology Faculty Research and Publications

Pavlovian conditioning involves the association of an inherently neutral stimulus with an appetitive or aversive outcome, such that the neutral stimulus itself acquires reinforcing properties. Across species, this type of learning has been shown to involve subcortical brain regions such as the striatum and the amygdala. It is less clear, however, how the neural circuitry involved in the acquisition of Pavlovian contingencies in humans, particularly in the striatum, is affected by acute stress. In the current study, we investigate the effect of acute stress exposure on Pavlovian conditioning using monetary reinforcers. Participants underwent a partial reinforcement conditioning procedure in which …


An Alternative To The Traditional Cold Pressor Test: The Cold Pressor Arm Wrap, Anthony J. Porcelli Jan 2014

An Alternative To The Traditional Cold Pressor Test: The Cold Pressor Arm Wrap, Anthony J. Porcelli

Psychology Faculty Research and Publications

Recently research on the relationship between stress and cognition, emotion, and behavior has greatly increased. These advances have yielded insights into important questions ranging from the nature of stress' influence on addiction1 to the role of stress in neural changes associated with alterations in decision-making2,3. As topics being examined by the field evolve, however, so too must the methodologies involved. In this article a practical and effective alternative to a classic stress induction technique, the cold pressor test (CPT), is presented: the cold pressor arm wrap (CPAW). CPT typically involves immersion of a participant's dominant hand in ice-cold …


Mother–Infant Interactions In Free-Ranging Rhesus Macaques: Relationships Between Physiological And Behavioral Variables, Dario Maestripieri, Christy L. Hoffman, George M. Anderson, C. Sue Carter, J. Dee Higley Jan 2014

Mother–Infant Interactions In Free-Ranging Rhesus Macaques: Relationships Between Physiological And Behavioral Variables, Dario Maestripieri, Christy L. Hoffman, George M. Anderson, C. Sue Carter, J. Dee Higley

Faculty Publications

Studies of mother–infant relationships in nonhuman primates have increasingly attempted to understand the neuroendocrine bases of interindividual variation in mothering styles and the mechanisms through which early exposure to variable mothering styles affects infant behavioral development. In this study of free-ranging rhesus macaques on Cayo Santiago, Puerto Rico, we aimed to: 1) compare lactating and nonlactating females to investigate whether lactation is associated with changes in plasma cortisol, prolactin and oxytocin, as well as changes in CSF levels of serotonin and dopamine metabolites (5-HIAA and HVA); 2) examine the extent to which interindividual variation in maternal physiology is associated with …


Toughness Predicts Performance In College Football, Joseph B. Rigoni May 2013

Toughness Predicts Performance In College Football, Joseph B. Rigoni

Department of Psychology: Dissertations, Theses, and Student Research

A premium college football player is estimated to generate over $1 million for his program, so optimal player assessment and selection are paramount. Lean body mass, back squat, and vertical jump have been the most predictive physical test scores, but such metrics typically account for less than 10% of variance in football performance. NFL scouts have tended to rely on vertical jump, 40-yard dash, and 20-yard shuttle scores, but interestingly, reliance on none of the physical tests conducted at the NFL Combine was predictive of team success; in fact, teams that relied on fewer total physical test scores tended to …


Salivary Cortisol And Interpersonal Functioning: An Event-Contingent Recording Study In The Offspring Of Parents With Bipolar Disorder, Mark A. Ellenbogen, Anne-Marie Linnen, Jonathan Bruce Santo, Marije Aan Het Rot, Sheilagh Hodgins, Simon N. Young Nov 2012

Salivary Cortisol And Interpersonal Functioning: An Event-Contingent Recording Study In The Offspring Of Parents With Bipolar Disorder, Mark A. Ellenbogen, Anne-Marie Linnen, Jonathan Bruce Santo, Marije Aan Het Rot, Sheilagh Hodgins, Simon N. Young

Psychology Faculty Publications

Despite a large body of research in non-human primates, the relationship between naturalistic patterns of social behaviour and basal cortisol levels has been understudied in humans. The present study examined the relationship between patterns of interpersonal functioning and cortisol levels in 23 offspring of parents with bipolar disorder (BD), at high risk for the development of an affective disorder, and 22 offspring of parents with no affective disorder (controls) in late adolescence and young adulthood. Using event-contingent recording, participants rated their dominance, submissiveness, quarrelsomeness, and agreeableness in naturally occurring social interactions over 14 consecutive days and provided salivary cortisol twice …


Acute Stress Influences Neural Circuits Of Reward Processing, Anthony J. Porcelli, Andrea H. Lewis, Mauricio R. Delgado Nov 2012

Acute Stress Influences Neural Circuits Of Reward Processing, Anthony J. Porcelli, Andrea H. Lewis, Mauricio R. Delgado

Psychology Faculty Research and Publications

People often make decisions under aversive conditions such as acute stress. Yet, less is known about the process in which acute stress can influence decision-making. A growing body of research has established that reward-related information associated with the outcomes of decisions exerts a powerful influence over the choices people make and that an extensive network of brain regions, prominently featuring the striatum, is involved in the processing of this reward-related information. Thus, an important step in research on the nature of acute stress’ influence over decision-making is to examine how it may modulate responses to rewards and punishments within reward …