Background: Being able to measure informed choice represents a mechanism for service evaluation to monitor whether informed choice is achieved in practice. Approaches to measuring informed choice to date have been based in the biomedical hegemony. Overlooked is the effect of epistemic positioning, that is, how people are positioned as credible knowers in relation to knowledge tested as being relevant for informed choice.
View Article and Find Full Text PDFInt J Hum Resourc Manag
September 2024
With a significant proportion of college students in many countries engaging in risky drinking behavior, this study examines the tendency of such young adults to 'mature out' of such behavior in their first year of employment after graduating, and the degree to which three mainstream organizational on-boarding experiences may expedite such 'maturing out'. Focusing on newcomers' experiences with alcohol-oriented job orientation, job empowerment, and organizational efforts to facilitate the development of supportive peer relationships, we test hypotheses regarding the direct effects of time on the change in alcohol misuse among those reporting misuse in college, as well as the degree to which individual on-boarding experiences account for the variance in young adults' maturing out trajectories over the course of their first year of employment. Findings generated from data collected from over 400 young adults over multiple waves offer important theoretical and practical implications regarding how and why particular onboarding tactics may be more or less effective in influencing newcomers' health-related behaviors.
View Article and Find Full Text PDFFindings regarding the mechanism underlying the impact of supervisor incivility on subordinate alcohol misuse remain equivocal. Specifically, some studies indicate that stress mediates the impact of supervisor incivility on subordinate alcohol misuse, while others, find no evidence for such an effect, suggesting the need to investigate other mechanisms. Extending Conservation of Resource (COR) theory and employing a longitudinal study design, this study examines two alternative mechanisms grounded on social isolation.
View Article and Find Full Text PDFTo what extent and under what conditions do college graduates disengage from employment-incompatible behaviors during the college-to-work transition? Drawing from the life course perspective, we proposed a model highlighting considerable stability of employment-incompatible behaviors during initial months of organizational socialization. Our model predicted that maturing out of such behaviors, which is expected by employers and beneficial to career adjustment, would be more likely to occur given a conducive transition context. Using a large dataset tracking graduates from their last semester in college to up to approximately 1.
View Article and Find Full Text PDFSign-tracking (ST) rats show enhanced cue sensitivity before drug experience that predicts greater discrete cue-induced drug seeking compared with goal-tracking or intermediate rats. Cue-evoked dopamine in the nucleus accumbens (NAc) is a neurobiological signature of sign-tracking behaviors. Here, we examine a critical regulator of the dopamine system, endocannabinoids, which bind the cannabinoid receptor-1 (CB1R) in the ventral tegmental area (VTA) to control cue-evoked striatal dopamine levels.
View Article and Find Full Text PDFCell Mol Gastroenterol Hepatol
July 2023
The detection of nutrients in the gut influences ongoing and future feeding behavior as well as the development of food preferences. In addition to nutrient sensing in the intestine, the hepatic portal vein plays a considerable role in detecting ingested nutrients and conveying this information to brain nuclei involved in metabolism, learning, and reward. Here, we review mechanisms underlying hepatic portal vein sensing of nutrients, particularly glucose, and how this is relayed to the brain to influence feeding behavior and reward.
View Article and Find Full Text PDFIndividual differences in Pavlovian approach predict differences in devaluation sensitivity. Recent studies indicate goal-tracking (GT) rats are sensitive to outcome devaluation while sign-tracking (ST) rats are not. With extended training in Pavlovian lever autoshaping (PLA), GT rats display more lever-directed behavior, typical of ST rats, suggesting they may become insensitive to devaluation with more Pavlovian training experience.
View Article and Find Full Text PDFAdvances in molecular technologies have the potential to help remedy health inequities through earlier detection and prevention; if, however, their delivery and uptake (and therefore any benefits associated with such testing) are not more carefully considered, there is a very real risk that existing inequities in access and use will be further exacerbated. We argue this risk relates to the way that information and knowledge about the technology is both acquired and shared, or not, between health practitioners and their patients.A healthcare system can be viewed as a complex social network comprising individuals with different worldviews, hierarchies, professional cultures and subcultures and personal beliefs, both for those giving and receiving care.
View Article and Find Full Text PDFOutbred rats display variable preferences for bittersweet solutions, expressed as preference or avoidance of high concentrations of artificial sweeteners over water. This may reflect individual differences in appetitive/aversive conflict processing that may have predictive validity for disorders of motivation. Here we use a homecage two-bottle choice procedure to examine the test/retest stability and between-tastant consistency in sucralose preference to determine the reliability of bittersweet taste preference.
View Article and Find Full Text PDFRationale: Endocannabinoids (eCBs) are critical gatekeepers of dopaminergic signaling, and disrupting cannabinoid receptor-1 (CB1) signaling alters DA dynamics to attenuate cue-motivated behaviors. Prior studies suggest that dopamine (DA) release plays a critical role in driving sign-tracking.
Objectives: Here, we determine whether systemic injections of rimonabant, a CB1 receptor inverse agonist, during Pavlovian lever autoshaping impair the expression of sign-tracking.
Previously established individual differences in appetitive approach and devaluation sensitivity observed in goal- and sign-trackers may be attributed to differences in the acquisition, modification, or use of associative information in basolateral amygdala (BLA) pathways. Here, we sought to determine the extent to which communication of associative information between BLA and anterior portions of insular cortex (IC) supports ongoing Pavlovian conditioned approach behaviors in sign- and goal-tracking rats, in the absence of manipulations to outcome value. We hypothesized that the BLA mediates goal-, but not sign- tracking approach through interactions with the IC, a brain region involved in supporting flexible behavior.
View Article and Find Full Text PDFBackground: The transition from college to work is both an exciting and potentially high risk time for young adults. As students transition from academic settings to full-time employment, they must navigate new social demands, work demands, and adjust their drinking behaviors accordingly. Research has shown that there are both protective factors and risk factors associated with starting a new job when it comes to alcohol use, and individual differences can moderate these factors.
View Article and Find Full Text PDF[Correction Notice: An Erratum for this article was reported in Vol 103(1) of (see record 2017-44578-001). In the article, the authors incorrectly used the term "probability" instead of the term "odds" when relating to the impact of drinking in college on post-graduation employment. The abstract should note "a roughly 10% reduction in the odds.
View Article and Find Full Text PDFInt J Aging Hum Dev
July 2015
The aging of the workforce in the developed world has prompted organizations to implement human resource (HR) policies and practices encouraging older workers to defer retirement. However, little is known about the prevalence of such practices, and the organizational factors associated with their adoption. In this study, we used data collected from 2008 to 2009 from a national probability sample of retirement eligible workers in the United States (N = 407) to assess the prevalence of aging-friendly human resource practices (AFHRP), and their organizational predictors.
View Article and Find Full Text PDFPurpose: Besides its application in oncology, 18F-FDG PET-CT imaging is also useful in the diagnosis of certain lung infections, inflammatory diseases, and atherosclerotic plaques. Myocardial uptake of 18F-FDG may hamper visualization of the lesions caused by these diseases. Two approaches have been proposed for reducing myocardial uptake in preclinical studies, namely, calcium channel blockers (verapamil) and high-fat diets such as commercial ketogenic diets and sunflower seed diets.
View Article and Find Full Text PDFYohimbine is an alpha-2 adrenoceptor antagonist that has been used in numerous studies as a pharmacological stressor in rodents, monkeys and humans. Recently, yohimbine has become the most common stress manipulation in studies on reinstatement of drug and food seeking. However, the wide range of conditions under which yohimbine promotes reward seeking is significantly greater than that of stressors like intermittent footshock.
View Article and Find Full Text PDFBackground: Relapse to unhealthy eating habits is a major problem in human dietary treatment. The individuals most commonly seeking dietary treatment are overweight or obese women, yet the commonly used rat reinstatement model to study relapse to palatable food seeking during dieting primarily uses normal-weight male rats. To increase the clinical relevance of the relapse to palatable food seeking model, here we pre-expose female rats to a calorically-dense cafeteria diet in the home-cage to make them overweight prior to examining the effect of this diet history on cue-, pellet-priming- and footshock-induced reinstatement of food seeking.
View Article and Find Full Text PDFCardiac single photon emission computed tomography (SPECT) cameras typically rotate too slowly around a patient to capture changes in the blood pool activity distribution and provide accurate kinetic parameters. A spatiotemporal iterative reconstruction method to overcome these limitations was investigated. Dynamic rest/stress (99m)Tc-methoxyisobutylisonitrile ((99m)Tc-MIBI) SPECT/CT was performed along with reference standard rest/stress dynamic positron emission tomography (PET/CT) (13)N-NH3 in five patients.
View Article and Find Full Text PDFGiven that it influences the appraisal of situations and the utilization of coping resources, attachment orientation may condition the effects of retirement-related stressors on retiree well-being. Focusing on depression, psychosomatic complaints and health, as well as income decline as a retirement-related stressor, we followed a sample of workers from just before retirement to up to 7 years postretirement. Results indicate that attachment avoidance-but not anxiety-moderates the adverse effects of income decline on well-being, with such effects more pronounced among individuals reporting higher levels of attachment avoidance.
View Article and Find Full Text PDFBackground And Purpose: From the literature, the prevalence of fluorodeoxyglucose (FDG) uptake in large artery atherosclerotic plaques shows great heterogeneity. We retrospectively reviewed 100 consecutive patients who underwent FDG-positron emission tomography-computed tomography (PET/CT) imaging of their whole body, to evaluate FDG uptake in the arterial wall.
Materials And Methods: We retrospectively evaluated 100 whole-body PET-CT scans.
We generate and test a moderated mediation model of the effects of two retirement-related stressors (namely, financial and marital) on the severity of alcohol misuse among retirees. We posit that in addition to using alcohol to cope with stressors in retirement, alcohol may also be used to self-medicate the secondary, sleep-related effects of such stressors, and that gender serves as a key boundary condition, moderating the impact of such stressors on sleep-related problems, and of sleep-related problems on alcohol misuse. Using longitudinal data collected from a sample of 292 retirees, our findings generally support this model, suggesting that both stressors are associated with the severity of alcohol misuse among male retirees.
View Article and Find Full Text PDFJ Occup Health Psychol
April 2012
Studies suggest that the psychopathological effects of involvement in critical incidents among emergency service workers failing to seek help in a timely manner may be detrimental both for the individual and for the organization. However, little is known as to the factors governing when individuals seek such help. Consequently, drawing from the help-seeking and coping literatures, we generate a theory explicating how job characteristics (namely, job control) and situational factors (namely, the severity of incident involvement) combine to influence help-seeking delay or, in other words, the amount of time that passes before employees seek help for incident-related distress.
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