The results suggest that the pigeons acquire this task by learning which stimuli to avoid, rather than which stimuli to choose, although it is also possible that these effects result from attention drawn to the variable stimuli when they are incorrect. (PsycInfo Database Record (c) 2020 APA, all rights reserved).The Journal of Experimental Psychology Animal Learning & Cognition (JEPALC) has always been the most prestigious journal for researchers investigating basic mechanisms of animal learning, cognition, and behavior. It is with great humility and honor that I currently take on the role of editor. Since its inception our discipline has been deeply interested in exploring the psychological mechanisms involved in learning, cognition, and behavior in an effort to better understand how adaptive behavior and various cognitive capacities have evolved. All in all, I am excited to serve the discipline as the next editor of JEPALC and very much look forward to handling many interesting articles. I also wish to thank the community, in advance, for their hard work not only in reviewing for JEPALC but also for conducting their high-quality research, which will ultimately make its way into the pages of the journal. (PsycInfo Database Record (c) 2020 APA, all rights reserved).OBJECTIVE Hospital visitors pose a risk for transmitting pathogens that can cause health care-associated infections. The present study aimed to test an evidence-based intervention to improve visitors' hand hygiene behavior through persuasive messages. METHOD For the 14-week-long field experiment, 7 signs were designed according to the principles of persuasion proposed by Cialdini reciprocity, consistency, social-proof, unity, liking, authority, and scarcity. Each sign was displayed on a screen for 1 week directly above the hand-rub dispenser in a hospital lobby. After each 1-week posting, the screen was blank for 1 week. RESULTS An electronic monitoring system counted 246,098 people entering and leaving the hospital's lobby and 17,308 dispenser usages. The signs based on the authority and the social-proof principles significantly increased the hand-rub dispenser usage rate in comparison to the average baseline usage rate. CONCLUSIONS These results indicate that simple and cost-efficient interventions can initiate expedient behavior change in hospitals. However, the findings also highlight the importance of careful planning and rigorous pretesting of material for an intervention to be effective. Theoretical and practical implications of these findings are discussed. (PsycInfo Database Record (c) 2020 APA, all rights reserved).OBJECTIVE Despite high comorbidity between posttraumatic stress disorder (PTSD) and chronic pain evident in adult populations, little research has been conducted in the pediatric population to assess this association. Therefore, this study aimed to estimate the prevalence of trauma and PTSD in pediatric patients with chronic pain. Additionally, investigation into whether the Child Report of Posttraumatic Symptoms (CROPS) is a valid PTSD screening tool for this patient population and identification of an appropriate clinical cutoff for screening PTSD was undertaken. METHOD Data of N = 297 children and adolescents aged 8 to 17 years were collected during an intensive interdisciplinary pain treatment. At admission, patients self-reported pain characteristics and posttraumatic stress symptoms (assessed with the CROPS). During the inpatient stay, therapists completed a checklist that enabled a PTSD diagnosis according to criteria of the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5). RESULTS Overall, 18.2% of the patients reported a trauma that met criterion A of DSM-5. Of those patients, approximately 59.3% had a PTSD diagnosis, equivalent to 10.8% of the whole sample. Overall, the CROPS demonstrated good reliability and validity in terms of internal consistency, item characteristics, and factor structure. Patients with PTSD had higher CROPS scores than patients without trauma. To identify patients with PTSD, a CROPS cutoff point of 21 is most appropriate in this population. CONCLUSIONS This study demonstrated high prevalence of PTSD in children and adolescents with severe chronic pain. Regarding PTSD screening in this population, results revealed that valid PTSD assessment and identification of patients with PTSD seems possible despite overlapping symptoms. (PsycInfo Database Record (c) 2020 APA, all rights reserved).OBJECTIVE The current study examined race differences in how childhood socioeconomic status (SES) predicted midlife inflammation. It also tested psychological resources (purpose in life, optimism, and conscientiousness) as moderators of the association between childhood SES and inflammation among Black and White adults. METHOD Data came from the biomarker subsamples of the Midlife in the United States Core and Refresher studies (n = 1,578 White and n = 395 Black participants). Childhood SES was operationalized as a composite of parental education, perceived financial status, and welfare status. Outcomes included circulating IL-6 and CRP. RESULTS Childhood SES did not predict IL-6 or CRP among Black or White adults in fully adjusted models. Among Black adults with low optimism, lower childhood SES predicted higher IL-6 and CRP. Among Black adults with low purpose in life, lower childhood SES predicted higher CRP (but not IL-6).  https://www.selleckchem.com/products/Irinotecan-Hcl-Trihydrate-Campto.html  Conscientiousness did not moderate childhood SES-inflammation associations among Black adults. Among White adults with low conscientiousness or low optimism, lower childhood SES predicted higher IL-6 (but not CRP). Purpose in life did not moderate associations among White adults. Effect sizes were small (≤1% variance explained) and comparable to effects of clinical risk factors in this sample (e.g., age, chronic conditions). CONCLUSIONS Race differences in the childhood SES and inflammation association were not apparent. Childhood SES was linked to inflammation more strongly among those with fewer psychological resources across both racial groups. Psychological resources may be important moderators of inflammation in the context of early life SES disadvantage. (PsycInfo Database Record (c) 2020 APA, all rights reserved).