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241.
The brain and immune system form a bidirectional communication network in which the immune system operates as a sense organ to provide the brain with information about infection and injury, thereby allowing the brain to coordinate a defense. Activated immune cells release proteins called cytokines, which signal the brain by both blood and neural routes. Information that reaches the brain across this sensory channel produces large changes in neural activity, behavior, mood, and cognitive functioning. Appreciation of the functioning of this network may illuminate poorly understood aspects of stress, depression, and intraindividual variability in behavior, mood, and cognition. 相似文献
242.
The way in which information about proportions, amounts, frequencies, probabilities, degrees of confidence, and risk is portrayed in natural language is not neutral, but reflects presuppositions and assumed norms. In this paper we present a review of evidence in support of this position. We show that the choice of expressions for communication depends in a systematic way on the kinds of inferences communicators draw. We go on to discuss the consequences of this for attribution phenomena, aspects of reasoning, the portrayal of uncertainty, and responses to questionnaires. We also suggest that communicator preferences for using language rather than numbers may have to do with human reasoning being argument‐based, rather than with a preference for vagueness, as has been commonly claimed. Copyright © 2000 John Wiley & Sons, Ltd. 相似文献
243.
Linda M. Jorgenson Audrey B. Hirsch Kathaleen M. Wahl 《Behavioral sciences & the law》1997,15(1):49-62
The task of defining boundaries and boundary violations in the therapeutic relationship is examined from several perspectives. This paper reviews the ethical rules of the major mental health associations and the American Medical Association to determine the professions' ethical positions with regard to boundary maintenance and boundary violations. It also analyzes judicially sanctioned causes of action for recovery by clients for damages suffered as a result of boundary violations. The authors examine the ways in which fiduciary theory is used in the formulation of the ethical rules and to support the imposition of civil liability for boundary violations. The authors conclude that fiduciary theory provides a useful paradigm for setting and evaluating boundaries that acknowledge and address the fiduciary nature of the therapist–client relationship. The authors point out that measuring boundary violations with the yardstick of fiduciary duty serves the interests of both the client and the therapist. © 1997 John Wiley & Sons, Ltd. 相似文献
244.
Julie A. Brunson Camilla S. Øverup Linda K. Acitelli 《The Journal of social psychology》2019,159(3):270-283
Romantic relationships are known to be very influential, but less is known about how these relationships, and particularly the breakup of these relationships, may affect individuals’ relational schemas, or their expectations for relationships. Undergraduate students reported on how their views of themselves, romantic partners, and relationships changed after breaking up with a past partner. Results suggest that relational schemas change following relationship dissolution and that there are both positive and negative aspects to this change. There was also some evidence that aspects of the past relationship predicted change and the valence of change, and that change and the valence of change were related to aspects of current relationship quality. These results are an important first step in understanding how past romantic relationships influence people’s expectations about relationships and, by extension, their health and wellbeing. 相似文献
245.
Linda Billings 《Theology & Science》2019,17(3):341-346
Space advocates, presidents, and NASA administrators have talked for decades about sending people back to the Moon and on to Mars, to stay. Neither funding nor public support has materialized. Billionaire Elon Musk has declared his intent to establish a human colony on Mars, drawing much media attention. Here Linda Billings argues that it would be unethical to contaminate a potentially habitable planet for further scientific exploration and immoral to transport a tiny, non-representative, subset of humanity—made up of people who could afford to spend hundreds of thousands to millions of dollars on the trip—to live on Mars. 相似文献
246.
Aerika Brittian Loyd Chelsea L. Derlan Everett V. Smith Shane A. Norris Linda M. Richter Robert W. Roeser 《Identity: An International Journal of Theory and Research》2019,19(1):44-61
The authors examined the dimensionality and psychometric properties of the Multigroup Ethnic Identity Measure (MEIM) among Black South African adolescents (ages = 13–14; 52% female) representing several ethnic groups (Ndebele, Pedi, Sotho, Swati, Tsonga, Tswana, Venda, Xhosa, Zulu) and evaluated the measure for differential item functioning primarily among four ethnic groups (Sotho, Tswana, Xhosa, and Zulu). Results indicated that a two-dimensional model best represented the data, reflecting ethnic search/clarity and ethnic affirmations. Subsequently, we evaluated the equivalence of the MEIM among the four South African ethnic groups and a sample of African American adolescents (Mage = 15.57 years; SD = 1.22; 51% female). Further analyses revealed that configural and metric models were excellent across the four South African ethnic groups and the African American group. However, scalar invariance (i.e., intercept) was not found; the item intercepts were different for the South African ethnic groups and African Americans. Findings are discussed with consideration for conducting research on ethnic identity among youth in South Africa. 相似文献
247.
Reduced adaptability,but no fundamental disruption,of norm‐based face coding following early visual deprivation from congenital cataracts
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Gillian Rhodes Mayu Nishimura Adelaide de Heering Linda Jeffery Daphne Maurer 《Developmental science》2017,20(3)
Faces are adaptively coded relative to visual norms that are updated by experience, and this adaptive coding is linked to face recognition ability. Here we investigated whether adaptive coding of faces is disrupted in individuals (adolescents and adults) who experience face recognition difficulties following visual deprivation from congenital cataracts in infancy. We measured adaptive coding using face identity aftereffects, where smaller aftereffects indicate less adaptive updating of face‐coding mechanisms by experience. We also examined whether the aftereffects increase with adaptor identity strength, consistent with norm‐based coding of identity, as in typical populations, or whether they show a different pattern indicating some more fundamental disruption of face‐coding mechanisms. Cataract‐reversal patients showed significantly smaller face identity aftereffects than did controls (Experiments 1 and 2). However, their aftereffects increased significantly with adaptor strength, consistent with norm‐based coding (Experiment 2). Thus we found reduced adaptability but no fundamental disruption of norm‐based face‐coding mechanisms in cataract‐reversal patients. Our results suggest that early visual experience is important for the normal development of adaptive face‐coding mechanisms. 相似文献
248.
Michael R. Sladek Leah D. Doane Shannon L. Jewell Linda J. Luecken 《Anxiety, stress, and coping》2017,30(1):66-81
Background and Objectives: Social stress and associated coping responses can profoundly influence women’s stress physiology and health. Implicit social attentional biases can also influence psychological and physiological stress responses. The purpose of this study was to explore whether a coping style characterized by greater use of social support predicts indices of cortisol activity in laboratory and daily life contexts among female university students. We hypothesized that the relation of this coping style to cortisol activity would be moderated by women’s attentional biases.Methods: Seventy-four women (Mage?=?19.44, range: 17.8–27.8, 64% White) completed an interpersonal stress task and an attentional bias task in the lab, along with a self-report coping inventory. Participants provided five saliva samples during the lab protocol, followed by three saliva samples per day for three consecutive weekdays. Outcome measures included cortisol response to lab tasks (AUCg), diurnal cortisol slope, diurnal AUCg, and cortisol awakening response (CARi).Results: A coping style characterized by greater use of social support predicted lower lab AUCg and lower, flatter average diurnal cortisol slope for women with attentional avoidance compared to women with attentional vigilance (ps?<?.05).Conclusions: Responding to stress by using social support is linked to lower cortisol responses to social stress and diurnal cortisol activity for women with implicit avoidance of social threat cues. 相似文献
249.
Maternal and infant affect at 4 months predicts performance and verbal IQ at 4 and 7 years in a diverse population
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Stephen J. Sheinkopf Elena J. Tenenbaum Daniel S. Messinger Cynthia L. Miller‐Loncar Ed Tronick Linda L. Lagasse Seetha Shankaran Henrietta Bada Charles Bauer Toni Whitaker Jane Hammond Barry M. Lester 《Developmental science》2017,20(5)
Using existing longitudinal data from 570 infants in the Maternal Lifestyle Study, we explored the predictive value of maternal and infant affect and maternal vocalizations during 2 minutes of face‐to‐face interactions at 4 months on IQ scores at 4.5 and 7 years. After controlling for demographic factors, maternal depression, and prenatal drug exposure, maternal positive affect and maternal positive vocalizations emerged as predictors of both verbal and performance IQ at 4.5 and 7 years. Although infant positive affect during the interaction with the mother was not predictive of these outcome measures, infant positive affect towards an examiner predicted verbal but not performance IQ at 4.5 years. These results suggest that maternal positive affect may index emotional engagement in interaction that facilitates both verbal and nonverbal cognitive development, while infant social positive affect is specifically related to the acquisition of verbal reasoning abilities. These findings are significant because they are based on a discrete snapshot of observable behavior in infancy (just 2 minutes of interaction), because they extend the range of maternal behaviors and characteristics known to support positive developmental outcomes, and because they are derived from high‐risk infants where prevention efforts may be beneficial. Potential mechanisms for these associations are discussed, as are the clinical implications for identifying dyads most in need of targeted interventions. 相似文献
250.
Self‐regulation principles underlying risk perception and decision making within the context of genomic testing
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Linda D. Cameron Barbara Bowles Biesecker Ellen Peters Jennifer M. Taber William M.P. Klein 《Social and Personality Psychology Compass》2017,11(5)
Advances in theory and research on self‐regulation and decision‐making processes have yielded important insights into how cognitive, emotional, and social processes shape risk perceptions and risk‐related decisions. We examine how self‐regulation theory can be applied to inform our understanding of decision‐making processes within the context of genomic testing, a clinical arena in which individuals face complex risk information and potentially life‐altering decisions. After presenting key principles of self‐regulation, we present a genomic testing case example to illustrate how principles related to risk representations, approach and avoidance motivations, emotion regulation, defensive responses, temporal construals, and capacities such as numeric abilities can shape decisions and psychological responses during the genomic testing process. We conclude with implications for using self‐regulation theory to advance science within genomic testing and opportunities for how this research can inform further developments in self‐regulation theory. 相似文献