Psychological Sciences

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A century of Gestalt psychology in visual perception: II. Conceptual and theoretical foundations
(American Psychological Association, 2012) Wagemans, Johan; Feldman, Jacob; Gepshtein, Sergei; Kimchi, Ruth; Pomerantz, James R.; van der Helm, Peter A.; van Leeuwen, Cees
Our first review article (Wagemans et al., 2012) on the occasion of the centennial anniversary of Gestalt psychology focused on perceptual grouping and figure-ground organization. It concluded that further progress requires a reconsideration of the conceptual and theoretical foundations of the Gestalt approach, which is provided here. In particular, we review contemporary formulations of holism within an information-processing framework, allowing for operational definitions (e.g., integral dimensions, emergent features, configural superiority, global precedence, primacy of holistic/configural properties) and a refined understanding of its psychological implications (e.g., at the level of attention, perception, and decision). We also review 4 lines of theoretical progress regarding the law of Prägnanz-the brain's tendency of being attracted towards states corresponding to the simplest possible organization, given the available stimulation. The first considers the brain as a complex adaptive system and explains how self-organization solves the conundrum of trading between robustness and flexibility of perceptual states. The second specifies the economy principle in terms of optimization of neural resources, showing that elementary sensors working independently to minimize uncertainty can respond optimally at the system level. The third considers how Gestalt percepts (e.g., groups, objects) are optimal given the available stimulation, with optimality specified in Bayesian terms. Fourth, structural information theory explains how a Gestaltist visual system that focuses on internal coding efficiency yields external veridicality as a side effect. To answer the fundamental question of why things look as they do, a further synthesis of these complementary perspectives is required.
A Context-Independent Situational Judgment Test to Measure Prosocial Implicit Trait Policy
(Taylor & Francis, 2016) Motowidlo, Stephan J.; Ghosh, Kamalika; Mendoza, Anjelica M.; Buchanan, Ashley E.; Lerma, Mikal N.
Two studies developed and validated a context-independent situational judgment test (SJT) of prosocial implicit trait policy (ITP). The first study developed an SJT based on critical incidents about the prosocial behavior of physicians, lawyers, community service volunteers, and human factors engineers. In a sample of 396 undergraduates, this SJT was internally consistent and correlated significantly with other trait constructs related to prosocial ITP. In the second study with 134 undergraduates, the SJT was significantly correlated with relevant trait constructs and prosocial performance in role-plays simulating scenarios in which others needed help. These results show that a generic SJT developed from items that describe situations and actions specific to several occupations can predict behavior in situations unlike any that appear in its items.
A cross-lagged path analysis of five intrapersonal determinants of smoking cessation
(Elsevier, 2014) Castro, Yessenia; Cano, Miguel Ángel; Businelle, Michael S.; Correa-Fernández, Virmarie; Heppner, Whitney L.; Mazas, Carlos A.; Wetter, David W.
Background: Prominent theories of drug use underscore the importance of considering the inter-relationships (e.g., reciprocal relations, indirect effects) of determinants of drug use behavior. In the area of smoking, few studies have examined multiple determinants of cessation in this way, and in prospective analyses. The current study is an examination of the prospective cross-lagged relationships among five intrapersonal determinants of cessation. Methods: Data from a longitudinal cohort study on racial differences in the process of smoking cessation were used to examine reciprocal relations among abstinence motivation, abstinence self-efficacy, positive affect, negative affect, and craving. Each of these five measures assessed on the quit day were regressed onto the same measures assessed 1–2 weeks pre-quit. The relationships of these variables at quit day with 1-week post-quit abstinence from smoking were also examined. Results: When the five variables were examined simultaneously in a cross-lagged path analysis, motivation and self-efficacy, and self-efficacy and positive affect showed cross-lagged relations. Only self-efficacy on the quit day uniquely predicted 1-week post quit abstinence. There were significant indirect effects of motivation and positive affect on cessation via self-efficacy. Conclusions: The current study reaffirms the importance of motivation and self-efficacy in smoking cessation, and suggests that positive affect may play a role in smoking cessation.
A lifespan development perspective and meta-analysis on the relationship between age and organizational training
(Wiley, 2022) Davenport, Meghan K.; Young, Carmen K.; Kim, Michelle H.; Gilberto, Jacqueline M.; Beier, Margaret E.
The confluence of the aging population and economic conditions that require working longer necessitate a focus on how to best train and develop older workers. We report a meta-analysis of the age and training relationship that examines training outcomes and moderators with 60 independent samples (total N = 10,003). Framed within the lifespan development perspective, we expected and found that older trainees perform worse (ρ = −.14, k = 34, N = 5642; δ = 1.08, k = 21, N = 1242) and take more time (ρ = .19, k = 15, N = 2780; δ = 1.25, k = 12, N = 664) in training relative to younger trainees. Further, age was negatively related to post-training self-efficacy (ρ = −.08, k = 10, N = 4631), but not related to trainee reactions. Moderator analyses provided mixed support that training alone is related to increased mastery of skills and knowledge. No support was found for the moderating effects of pacing or instructional approach. We call for future research examining the interactive effects of training design on older worker outcomes in ways that capitalize on age-related growth, compensate for decline, and consider the strategies workers use to mitigate the effect of age-related losses.
A Meta-analysis of University STEM Summer Bridge Program Effectiveness
(The American Society for Cell Biology, 2021) Bradford, Brittany C.; Beier, Margaret E.; Oswald, Frederick L.
University science, technology, engineering, and math (STEM) summer bridge programs provide incoming STEM university students additional course work and preparation before they begin their studies. These programs are designed to reduce attrition and increase the diversity of students pursuing STEM majors and STEM career paths. A meta-analysis of 16 STEM summer bridge programs was conducted. Results showed that program participation had a medium-sized effect on first-year overall grade point average (d = 0.34) and first-year university retention (Odds Ratio [OR] = 1.747). Although this meta-analytic research reflects a limited amount of available quantitative academic data on summer STEM bridge programs, this study nonetheless provides important quantitative inroads into much-needed research on programs’ objective effectiveness. These results articulate the importance of thoughtful experimental design and how further research might guide STEM bridge program development to increase the success and retention of matriculating STEM students.
A novel face-name mnemonic discrimination task with naturalistic stimuli
(Elsevier, 2023) Mannion, Renae; Harikumar, Amritha; Morales-Calva, Fernanda; Leal, Stephanie L.
Difficulty remembering faces and names is a common struggle for many people and gets more difficult as we age. Subtle changes in appearance from day to day, common facial characteristics across individuals, and overlap of names may contribute to the difficulty of learning face-name associations. Computational models suggest the hippocampus plays a key role in reducing interference across experiences with overlapping information by performing pattern separation, which enables us to encode similar experiences as distinct from one another. Thus, given the nature of overlapping features within face-name associative memory, hippocampal pattern separation may be an important underlying mechanism supporting this type of memory. Furthermore, cross-species approaches find that aging is associated with deficits in hippocampal pattern separation. Mnemonic discrimination tasks have been designed to tax hippocampal pattern separation and provide a more sensitive measure of age-related cognitive decline compared to traditional memory tasks. However, traditional face-name associative memory tasks do not parametrically vary overlapping features of faces and names to tax hippocampal pattern separation and often lack naturalistic facial features (e.g., hair, accessories, similarity of features, emotional expressions). Here, we developed a face-name mnemonic discrimination task where we varied face stimuli by similarity, race, sex, and emotional expression as well as the similarity of name stimuli. We tested a sample of healthy young and older adults on this task and found that both age groups showed worsening performance as face-name interference increased. Overall, older adults struggled to remember faces and face-name pairs more than young adults. However, while young adults remembered emotional faces better than neutral faces, older adults selectively remembered positive faces. Thus, the use of a face-name association memory task designed with varying levels of face-name interference as well as the inclusion of naturalistic face stimuli across race, sex, and emotional expressions provides a more nuanced approach relative to traditional face-name association tasks toward understanding age-related changes in memory.
A position paper on researching braille in the cognitive sciences: decentering the sighted norm
(Cambridge University Press, 2023) Englebretson, Robert; Holbrook, M. Cay; Fischer-Baum, Simon
This article positions braille as a writing system worthy of study in its own right and on its own terms. We begin with a discussion of the role of braille in the lives of those who read and write it and a call for more attention to braille in the reading sciences. We then give an overview of the history and development of braille, focusing on its formal characteristics as a writing system, in order to acquaint sighted print readers with the basics of braille and to spark further interest among reading researchers. We then explore how print-centric assumptions and sight-centric motivations have potentially negative consequences, not only for braille users but also for the types of questions researchers think to pursue. We conclude with recommendations for conducting responsible and informed research about braille. We affirm that blindness is most equitably understood as but one of the many diverse ways humans experience the world. Researching braille literacy from an equity and diversity perspective provides positive, fruitful insights into perception and cognition, contributes to the typologically oriented work on the world’s writing systems, and contributes to equity by centering the perspectives and literacy of the people who read and write braille.
A Systematic Review and Meta-Analysis of Takeover Performance During Conditionally Automated Driving
(Sage, 2022) Weaver, Bradley W.; DeLucia, Patricia R.
Objective: The aim of this paper was to synthesize the experimental research on factors that affect takeover performance during conditionally automated driving. Background: For conditionally automated driving, the automated driving system (ADS) can handle the entire dynamic driving task but only for limited domains. When the system reaches a limit, the driver is responsible for taking over vehicle control, which may be affected by how much time they are provided to take over, what they were doing prior to the takeover, or the type of information provided to them during the takeover. Method: Out of 8446 articles identified by a systematic literature search, 48 articles containing 51 experiments were included in the meta-analysis. Coded independent variables were time budget, non-driving related task engagement and resource demands, and information support during the takeover. Coded dependent variables were takeover timing and quality measures. Results: Engaging in non-driving related tasks results in degraded takeover performance, particularly if it has overlapping resource demands with the driving task. Weak evidence suggests takeover performance is impaired with shorter time budgets. Current implementations of information support did not affect takeover performance. Conclusion: Future research and implementation should focus on providing the driver more time to take over while automation is active and should further explore information support. Application: The results of the current paper indicate the need for the development and deployment of vehicle-to-everything (V2X) services and driver monitoring.
Activities Matter: Personality and Resource Determinants of Activities and their Effect on Mental and Physical Well-being and Retirement Expectations
(Oxford University Press, 2018) Beier, Margaret E.; Torres, W. Jackeline; Gilberto, Jacqueline M.
Remaining active throughout the lifespan is central to healthy aging. The current study tests a model derived from investment and resource theories that examines the extent to which activities mediate the relationship between individual differences in personality and resources on mental and physical well-being and retirement expectations. A subsample (N = 400; 58% women) of participants from the nationally representative Health and Retirement Study (HRS) was used. Self-reported activities were grouped into 4 broad categories: productive, physical, social, and leisure. Activity variety, operationalized as the number of different activity categories in which a person reported participating over a specified period of time, was also examined. Correlations and path analysis results suggest small but significant effects between personality traits and activity participation, and more consistent effects of personality for predicting activity variety. Personality was also significantly correlated with well-being and retirement expectations as was activity variety. There was limited evidence, however, that activity variety mediated the relationship between personality and resources and mental and physical well-being and retirement expectations as would be predicted by investment theory.
Adaptation of a Counseling Intervention to Address Multiple Cancer Risk Factors Among Overweight/Obese Latino Smokers
(Sage, 2015) Castro, Yessenia; Fernández, Maria E.; Strong, Larkin L.; Stewart, Diana W.; Krasny, Sarah; Robles, Eden Hernandez; Heredia, Natalia; Spears, Claire A.; Correa-Fernández, Virmarie; Eakin, Elizabeth; Resnicow, Ken; Basen-Engquist, Karen; Wetter, David W.
More than 60% of cancer-related deaths in the United States are attributable to tobacco use, poor nutrition, and physical inactivity, and these risk factors tend to cluster together. Thus, strategies for cancer risk reduction would benefit from addressing multiple health risk behaviors. We adapted an evidence-based intervention grounded in social cognitive theory and principles of motivational interviewing originally developed for smoking cessation to also address physical activity and fruit/vegetable consumption among Latinos exhibiting multiple health risk behaviors. Literature reviews, focus groups, expert consultation, pretesting, and pilot testing were used to inform adaptation decisions. We identified common mechanisms underlying change in smoking, physical activity, and diet used as treatment targets; identified practical models of patient-centered cross-cultural service provision; and identified that family preferences and support as particularly strong concerns among the priority population. Adaptations made to the original intervention are described. The current study is a practical example of how an intervention can be adapted to maximize relevance and acceptability and also maintain the core elements of the original evidence-based intervention. The intervention has significant potential to influence cancer prevention efforts among Latinos in the United States and is being evaluated in a sample of 400 Latino overweight/obese smokers.
Adapting TeamSTEPPS for school mental health teams: a pilot study
(BioMed Central, 2019) Wolk, Courtney Benjamin; Stewart, Rebecca E.; Cronholm, Peter; Eiraldi, Ricardo; Salas, Eduardo; Mandell, David S.
Background: School mental health care often is provided by teams contracted from community mental health agencies. The team members that provide this care, however, do not typically receive training in how to work effectively in a team-based context. Team Strategies and Tools to Enhance Performance and Patient Safety (TeamSTEPPS) provides a promising, evidence-based strategy for improving communication and climate in school-based teams. Methods: In collaboration with stakeholders, we adapted and piloted TeamSTEPPS for use with school mental health teams. Teams in six schools were randomized to receive the adapted TeamSTEPPS approach or usual supports. The main outcomes of interest were feasibility and acceptability of the adapted TeamSTEPPS strategy. Results: Results indicated that team member burnout was significantly higher at follow-up than pretreatment for both control and intervention teams. TeamSTEPPS was feasible and acceptable to implement, and leadership emerged as an important facilitator. Barriers to implementation success included staff turnover, lack of resources, and challenges in the school mental health team relationship. Additional supports to implement TeamSTEPPS were suggested, including ongoing consultation and booster training to address high staff turnover. Conclusions: Results suggest that TeamSTEPPS is promising for school mental health teams but additional modifications are likely needed.
ADHD severity as a predictor of cognitive task performance in children with Autism Spectrum Disorder (ASD)
(Elsevier, 2021) Mansour, Rosleen; Ward, Anthony R.; Lane, David M.; Loveland, Katherine A.; Aman, Michael G.; Jerger, Susan; Schachar, Russell J.; Pearson, Deborah A.
Background: In recent years, a number of studies have begun to explore the nature of Attention-Deficit/Hyperactivity Disorder (ADHD) in children with Autism Spectrum Disorder (ASD). In this study, we examined the relationship between both symptoms of ADHD and symptoms of ASD on cognitive task performance in a sample of higher-functioning children and adolescents with ASD. Participants completed cognitive tasks tapping aspects of attention, impulsivity/inhibition, and immediate memory. Aims: We hypothesized that children with ASD who had higher levels of ADHD symptom severity would be at higher risk for poorer sustained attention and selective attention, greater impulsivity/disinhibition, and weaker memory. Methods and procedures: The sample included 92 children (73 males) diagnosed with ASD (Mean Age = 9.41 years; Mean Full Scale IQ = 84.2). Outcomes and results: Using regression analyses, more severe ADHD symptomatology was found to be significantly related to weaker performance on tasks measuring attention, immediate memory, and response inhibition. In contrast, increasing severity of ASD symptomatology was not associated with higher risk of poorer performance on any of the cognitive tasks assessed. Conclusions and implications: These results suggest that children with ASD who have more severe ADHD symptoms are at higher risk for impairments in tasks assessing attention, immediate memory, and response inhibition—similar to ADHD-related impairments seen in the general pediatric population. As such, clinicians should assess various aspects of cognition in pediatric patients with ASD in order to facilitate optimal interventional and educational planning.
Aging and Burnout for Nurses in an Acute Care Setting: The First Wave of COVID-19
(MDPI, 2023) Beier, Margaret E.; Cockerham, Mona; Branson, Sandy; Boss, Lisa
We examined the relationship between age, coping, and burnout during the peak of the COVID-19 pandemic with nurses in Texas (N = 376). Nurses were recruited through a professional association and snowball sampling methodology for the cross-sectional survey study. Framed in lifespan development theories, we expected that nurse age and experience would be positively correlated with positive coping strategies (e.g., getting emotional support from others) and negatively correlated with negative coping strategies (e.g., drinking and drug use). We also expected age to be negatively related to the emotional exhaustion and depersonalization facets of burnout and positively related to the personal accomplishment facet of burnout. Findings were largely supported in that age was positively associated with positive coping and personal accomplishment and age and experience were negatively correlated with negative coping and depersonalization. Age was not, however, associated with emotional exhaustion. Mediation models further suggest that coping explains some of the effect of age on burnout. A theoretical extension of lifespan development models into an extreme environment and practical implications for coping in these environments are discussed.
An Evaluation of Perceived Health Risk and Depressive Symptoms Before a Disaster in Predicting Postdisaster Inflammation
(Wolters Kluwer, 2018) Murdock, Kyle; Stowe, Raymond; Peek, M.; Lawrence, Savannah; Fagundes, Christopher
OBJECTIVE: Exposure to major life stressors is associated with subsequent enhanced inflammation-related disease processes. Depressive symptoms exacerbate stress-induced inflammatory responses. Moreover, those who report a high degree of perceived health risk before being exposed to a major life stressor such as a disaster are at risk for poor health outcomes. The present study examined whether perceived health risk and depressive symptoms before a disaster were associated with postdisaster inflammation markers. METHODS: The sample included 124 participants (mean [standard deviation] age = 55 [16] years; 69% women). At a baseline visit, participants completed self-report measures of perceived health risk and depressive symptoms (Center for Epidemiologic Studies Depression Scale) in addition to a blood draw for the assessment of inflammation markers (C-reactive protein, tumor necrosis factor receptor 1, and interleukin 6). All participants lived near a large petrochemical complex where an unexpected explosion occurred. A second blood sample was obtained 2 to 6 months after the explosion. RESULTS: No significant differences in inflammation markers were found between predisaster and postdisaster assessment (p > .21). An interaction between predisaster perceived health risk and depressive symptoms in predicting postdisaster circulating inflammation markers was identified (Cohen f = 0.051). Specifically, predisaster perceived health risk was associated with postdisaster circulating inflammation markers if predisaster depressive symptoms were greater than 8.10 on the Center for Epidemiologic Studies Depression Scale. CONCLUSIONS: These findings add to our understanding of the complex interactions between stress, depression, and immune responses. Indeed, findings provide a potential mechanism (i.e., inflammation) explaining the association between exposure to major life stressors and negative mental and physical health outcomes.
An evidence-based, structured, expert approach to selecting essential indicators of primary care quality
(Public Library of Science, 2022) Hysong, Sylvia J.; Arredondo, Kelley; Hughes, Ashley M.; Lester, Houston F.; Oswald, Frederick L.; Petersen, Laura A.; Woodard, LeChauncy; Post, Edward; DePeralta, Shelly; Murphy, Daniel R.; McKnight, Jason; Nelson, Karin; Haidet, Paul
Background The purpose of this article is to illustrate the application of an evidence-based, structured performance measurement methodology to identify, prioritize, and (when appropriate) generate new measures of health care quality, using primary care as a case example. Primary health care is central to the health care system and health of the American public; thus, ensuring high quality is essential. Due to its complexity, ensuring high-quality primary care requires measurement frameworks that can assess the quality of the infrastructure, workforce configurations, and processes available. This paper describes the use of the Productivity Measurement and Enhancement System (ProMES) to compile a targeted set of such measures, prioritized according to their contribution and value to primary care. Methods We adapted ProMES to select and rank existing primary care measures according to value to the primary care clinic. Nine subject matter experts (SMEs) consisting of clinicians, hospital leaders and national policymakers participated in facilitated expert elicitation sessions to identify objectives of performance, corresponding measures, and priority rankings. Results The SMEs identified three fundamental objectives: access, patient-health care team partnerships, and technical quality. The SMEs also selected sixteen performance indicators from the 44 pre-vetted, currently existing measures from three different data sources for primary care. One indicator, Team 2-Day Post Discharge Contact Ratio, was selected as an indicator of both team partnerships and technical quality. Indicators were prioritized according to value using the contingency functions developed by the SMEs. Conclusion Our article provides an actionable guide to applying ProMES, which can be adapted to the needs of various industries, including measure selection and modification from existing data sources, and proposing new measures. Future work should address both logistical considerations (e.g., data capture, common data/programming language) and lingering measurement challenges, such as operationalizating measures to be meaningful and interpretable across health care settings.
Association of Acculturation, Nativity, and Years Living in the United States with Biobanking among Individuals of Mexican Descent
(American Association for Cancer Research, 2014) Lopez, David S.; Fernandez, Maria E.; Cano, Miguel Angel; Mendez, Claudia; Tsai, Chu-Lin; Wetter, David W.; Strom, Sara S.
Background: Biobanking is the collection of human biospecimens (tissues, blood, and body fluids) and their associated clinical and outcome data. Hispanics are less likely to provide biologic specimens for biobanking. The purpose of this study was to investigate the association of acculturation, nativity status, and years living in the United States with participation in biobanking among individuals of Mexican descent. Methods: Participants were 19,212 adults of Mexican descent enrolled in an ongoing population-based cohort in Houston, TX. Participants were offered the opportunity to provide a blood, urine, or saliva sample for biobanking. Acculturation was assessed with the bidimensional acculturation scale for Hispanics and scores were categorized into ﾓlow acculturation,ﾔﾓbicultural,ﾔ and ﾓhigh-acculturation.ﾔ Results: After multivariable adjustment, we found an increased likelihood of participation in biobanking among individuals classified as ﾓbiculturalﾔ as compared with ﾓhighly acculturatedﾔ individuals [OR, 1.58; 95% confidence intervals (CI), 1.10ﾖ2.26]. The associations of nativity status and years living in the United States with biobanking were not statistically significant. After stratifying by gender, the associations of acculturation, nativity status, and years living in the United States with biobanking were not statistically significant. Conclusion: Although individuals of Mexican descent who were ﾓbiculturalﾔ were more likely to participate in biobanking than individuals who were ﾓhighly acculturated,ﾔ the difference in rates of participation among acculturation categories was small. The high participation rate in biospecimen collection is likely due to extensive community-engaged research efforts. Future studies are warranted to understand individuals' participation in biobanking. Impact: Community-engaged research efforts may increase Hispanics' participation in biobanking.
Associations between teamwork and implementation outcomes in multidisciplinary cross-sector teams implementing a mental health screening and referral protocol
(Springer Nature, 2023) McGuier, Elizabeth A.; Aarons, Gregory A.; Byrne, Kara A.; Campbell, Kristine A.; Keeshin, Brooks; Rothenberger, Scott D.; Weingart, Laurie R.; Salas, Eduardo; Kolko, David J.
Teams play a central role in the implementation of new practices in settings providing team-based care. However, the implementation science literature has paid little attention to potentially important team-level constructs. Aspects of teamwork, including team interdependence, team functioning, and team performance, may affect implementation processes and outcomes. This cross-sectional study tests associations between teamwork and implementation antecedents and outcomes in a statewide initiative to implement a standardized mental health screening/referral protocol in Child Advocacy Centers (CACs).
Associations of meaning of illness with psychosocial, clinical, and immunological characteristics in patients with Leptomeningeal metastasis
(Elsevier, 2021) Walker, Julie G.; Armstrong, Terri S.; O'Brien, Barbara J.; Gilbert, Mark R.; Casarez, Rebecca L.; Fagundes, Christopher; Heijnen, Cobi J.; Andersen, Clark R.; Yuan, Ying; Wu, Jimin; LoBiondo-Wood, Geri
Background Leptomeningeal metastasis (LM) creates symptoms related to both the disease within the nervous system and treatment toxicities. Biologic processes, such as inflammation and behavioral processes, such as the meaning ascribed to illness (Meaning of Illness: MoI), can impact physical and psychosocial symptoms. The aim of this study was to understand the relationships among MoI, physical and psychosocial symptoms, and inflammation in patients with LM. Methods Thirty enrolled participants completed the MD Anderson Symptom Inventory-Brain Tumor with spine experimental symptoms added. Meaning of illness, quality of life (QoL), and depression were captured by validated instruments. Interleukin (IL)-6 and tumor necrosis factor (TNF)-α in serum and cerebrospinal fluid (CSF) were measured by ELISA. Correlations were performed to assess relationships among the variables. Results Participants were primarily white (73%), female (63%). Median age was 54 years (34–83). Breast (50%) and lung (20%) were most common diagnosis. Higher MoI scores were associated with better QoL (p < .01) and fewer depressive symptoms (p < .01). All CSF samples contained IL-6 and all but one sample had elevated IL-6. Higher levels of IL-6 in the CSF were associated with greater symptom burden (p < .01) and interference of symptoms in daily life (p = .02) but not MoI. Conclusions MoI was associated with QoL and depression. High levels of IL-6 in the CSF were associated with more severe symptoms. This study provides the groundwork for future research, including interventional studies to improve QoL in patients with LM.
Attachment and telomere length: more evidence for psychobiological connections between close relationships, health, and aging
(Springer, 2018) Murdock, Kyle W.; Zilioli, Samuele; Ziauddin, Khadija; Heijnen, Cobi J.; Fagundes, Christopher P.
Individuals with a history of poor interpersonal relationships are more likely to demonstrate negative health outcomes than those who have had high quality relationships. We sought to evaluate how attachment orientations, stress-induced respiratory sinus arrhythmia (RSA), and self-reported stress were associated with length of telomeres measured from peripheral blood mononuclear cells. Participants (N = 213) completed self-report measures of attachment and stress. Measurement of RSA was conducted before and after a stressful task and a blood draw was completed for analysis of telomere length. Attachment orientations were not directly associated with telomere length; however, we found that high attachment anxiety was associated with shorter length of telomeres via high self-reported stress. Attachment avoidance was also associated with telomere length via self-reported stress, but only among those with high stress-induced RSA. Exploratory analyses of T cell subsets indicated that stress was most strongly associated with telomeres from CD8CD28+ cells in comparison to CD8CD28− and CD4 cells. Study findings indicate that attachment orientations are associated with telomere length via stress, providing novel insights into the mechanisms through which close relationships can impact health and aging.
Bayesian Probability and Statistics in Management Research: A New Horizon
(Sage, 2013-01) Zyphur, Michael J.; Oswald, Frederick L.
This special issue is focused on how a Bayesian approach to estimation, inference, and reasoning in organizational research might supplement—and in some cases supplant—traditional frequentist approaches. Bayesian methods are well suited to address the increasingly complex phenomena and problems faced by 21st-century researchers and organizations, where very complex data abound and the validity of knowledge and methods are often seen as contextually driven and constructed. Traditional modeling techniques and a frequentist view of probability and method are challenged by this new reality.

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