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Biomedical subjects

E Diener

Publications and source records attributed to E Diener.

At least 19 recordsLinked to original sources
PubMed1995

Cross-cultural correlates of life satisfaction and self-esteem.

College students in 31 nations (N = 13,118) completed measures of self-esteem, life satisfaction, and satisfaction with specific domains (friends, family, and finances). The authors assessed whether cross-cultural variations in the strength of associations were related to societal dimensions including income and individualism. At the national level, individualism correlated -.24 (ns) with heterogeneity and .71 (p < .001) with wealth. At the individual level, self-esteem and life satisfaction were correlated .47 for the entire sample. This relation, however, was moderated by the individualism of the society. The associations of financial, friend, and family satisfactions with life satisfaction and with self-esteem also varied across nations. Financial satisfaction was a stronger correlate of life satisfaction in poorer countries. It was found that life satisfaction and self-esteem were clearly discriminable constructs. Satisfaction ratings, except for financial satisfaction, varied between slightly positive and fairly positive.

Adolescent↗
PubMed1995

Resources, personal strivings, and subjective well-being: a nomothetic and idiographic approach.

The covariation of resources such as money, family support, social skills, and intelligence with subjective well-being (SWB) was assessed in 195 college students. Informant ratings provided an index of resources. Self-reports, daily experience sampling, and informant reports were used to measure SWB. The authors concluded that resources taken together are moderately strong predictors of SWB. This conclusion, however, was qualified by the fact that life satisfaction was more closely related to resources than was affective well-being and that social and personal resources were in general more strongly related to SWB than were material resources. The findings also supported the hypothesis that resources correlate more strongly with SWB when they are relevant to an individual's idiographic personal strivings. A tendency was found for people to choose personal strivings for which they have relevant resources, and the degree of congruence of individuals' goals with resources was predictive of SWB.

Achievement↗
PubMed1995

Factors predicting the subjective well-being of nations.

Subjective well-being (SWB) in 55 nations, reported in probability surveys and a large college student sample, was correlated with social, economic, and cultural characteristics of the nations. The SWB surveys, representing nations that include three fourths of the earth's population, showed strong convergence. Separate measures of the predictor variables also converged and formed scales with high reliability, with the exception of the comparison variables. High income, individualism, human rights, and societal equality correlated strongly with each other, and with SWB across surveys. Income correlated with SWB even after basic need fulfillment was controlled. Only individualism persistently correlated with SWB when other predictors were controlled. Cultural homogeneity, income growth, and income comparison showed either low or inconsistent relations with SWB.

Culture↗
PubMed1991

Gender differences in negative affect and well-being: the case for emotional intensity.

Affect intensity (AI) may reconcile 2 seemingly paradoxical findings: Women report more negative affect than men but equal happiness as men. AI describes people's varying response intensity to identical emotional stimuli. A college sample of 66 women and 34 men was assessed on both positive and negative affect using 4 measurement methods: self-report, peer report, daily report, and memory performance. A principal-components analysis revealed an affect balance component and an AI component. Multimeasure affect balance and AI scores were created, and t tests were computed that showed women to be as happy as and more intense than men. Gender accounted for less than 1% of the variance in happiness but over 13% in AI. Thus, depression findings of more negative affect in women do not conflict with well-being findings of equal happiness across gender. Generally, women's more intense positive emotions balance their higher negative affect.

Adult↗
PubMed1991

Further validation of the Satisfaction with Life Scale: evidence for the cross-method convergence of well-being measures.

The structure of subjective well-being has been conceptualized as consisting of two major components: the emotional or affective component and the judgmental or cognitive component (Diener, 1984; Veenhoven, 1984). The judgmental component has also been conceptualized as life satisfaction (Andrews & Withey, 1976). Although the affective component of subjective well-being has received considerable attention from researchers, the judgmental component has been relatively neglected. The Satisfaction With Life Scale (SWLS; Diener, Emmons, Larsen, & Griffin, 1985) was developed as a measure of the judgmental component of subjective well-being (SWB). Two studied designed to validate further the SWLS are reported. Peer reports, a memory measure, and clinical ratings are used as external criteria for validation. Evidence for the reliability and predictive validity of the SWLS is presented, and its performance is compared to other related scales. The SWLS is shown to be a valid and reliable measure of life satisfaction, suited for use with a wide range of age groups and applications, which makes possible the savings of interview time and resources compared to many measures of life satisfaction. In addition, the high convergence of self- and peer-reported measures of subjective well-being and life satisfaction provide strong evidence that subjective well-being is a relatively global and stable phenomenon, not simply a momentary judgment based on fleeting influences.

Adult↗
PubMed1991

The psychic costs of intense positive affect.

Recent research indicates that happiness, or affective well-being, is related primarily to the frequency, not to the intensity, of positive affect (PA). The question arises as to why intense positive affect (PI) is not a larger contributor to subjective well-being. Whether processes that yield PI also produce intense negative affect was examined. Studies 1 and 2 suggested that cognitive mechanisms that amplify or dampen affect can carry over from positive to negative events. Study 3 demonstrated that, because of judgment mechanisms, an extremely positive event can make other events less positive. Study 4 revealed that naturally occurring intensely positive experiences are often preceded by negative ones. Study 5 suggested that the more persons valence success at a task, the happier they will be if they succeed, but unhappier if they fail. The 5 studies reveal that intense positive experiences may sometimes have costs that counterbalance their desirable nature.

Adaptation, Psychological↗
PubMed1990

Application of target-specific drug immunoconjugates to experimental bone marrow replacement therapy in mice.

Immunoconjugates whose cytotoxic component consists of a phytopeptide are often used as purging agents in bone marrow replacement therapy. Less popular are drug immunoconjugates containing a small molecular weight cytotoxic drug attached to the target-specific conjugand via an appropriate spacer molecule. High target specificity, resistance of the drug to intralysosomal proteases and, once cleaved from the spacer, ready exist of the drug from the lysosome are among the advantages drug immunoconjugates hold over phytotoxin immunoconjugates. The cytotoxic drug daunomycin attached via an acid-sensitive spacer to monoclonal antibody of appropriate specificity was shown to purge murine bone marrow of contaminating tumor cells without affecting its hematopoietic potential. Lethally irradiated mice reconstituted with syngeneic bone marrow from which contaminating lymphoma cells had been removed survived indefinitely. Furthermore, lymphoma-bearing mice, provided they were sufficiently irradiated to eliminate tumor cells in situ, were successfully reconstituted with fully allogeneic bone marrow from which potentially graft-versus-host-reactive T-cells had been purged.

Animals↗
PubMed1990

Effective drug-antibody targeting using a novel monoclonal antibody against the proliferative compartment of mammalian squamous carcinomas.

mAb 174H.64, which selectively recognizes an epitope expressed on the proliferating cells of mammalian squamous carcinomas, was covalently coupled to daunomycin (DM) by an acid-sensitive linker and tested for its selective cytotoxicity for squamous carcinomas. A murine lung squamous carcinoma model for chemoimmunotherapy using mAb 174H.64-DM conjugates was developed. This model utilizes the KLN-205 cell line, which metastasizes to the lungs following i.v. injection and shows a pattern of growth similar to those of spontaneous squamous carcinomas, characterized by highly proliferative cells at the periphery of the tumor (reactive with 174H.64) with the keratinized differentiated cells toward the center (not reactive with 174H.64). 174H.64-DM conjugates showed marked and specific cytotoxicity against KLN-205 cells both in vitro and following i.v. injection of the immunoconjugate in mice with established lung metastases. The conjugate was nearly as effective as daunomycin alone when incubated in vitro with KLN-205 cells and much more effective than daunomycin alone in vivo or other control immunoconjugates, which were ineffective. Finally, while the free 174H.64 mAb produced a significantly increased time of survival of mice bearing KLN-205 metastases, a much greater survival was found with mice treated with the 174H.64-DM immunoconjugate, some mice apparently demonstrating long-term survival (greater than 100 days). We conclude that mAb 174H.64 may have potential therapeutic benefit against squamous carcinoma.

Animals↗
PubMed1989

Intrapersonal and social comparison determinants of happiness: a range-frequency analysis.

Examined whether intrapersonal comparisons and social comparisons operate in similar ways to determine ratings of happiness. Events were varied to create positively and negatively skewed distributions. The events in each distribution were ascribed to either a single person or a group of people; Ss rated how happy they would feel if they experienced specific events within the distribution. Ratings for both intrapersonal and social comparisons were fit well by Parducci's (1984) range-frequency theory. Individual events received higher ratings when presented within the positively skewed context. Overall happiness, as measured by both the mean of the happiness ratings as well as direct ratings, was highest for the negatively skewed distributions. The effects of skewing were more pronounced for intrapersonal comparisons, but ratings were more closely defined by the range of experimental stimuli for social comparisons.

Adult↗
PubMed1988

Autonomic arousal feedback and emotional experience: evidence from the spinal cord injured.

We interviewed spinal-cord-injured, other handicapped, and nonhandicapped subjects to investigate the relation between the perception of autonomic arousal and experienced emotion. The three groups differed significantly on only one measure of affect intensity, with the spinal-cord-injured subjects more often reporting stronger fear in their lives now compared with the past. In addition, spinal-cord-injured subjects often described intense emotional experiences. Spinal-cord-injured subjects who differed in their level of autonomic feedback differed in intensity on several measures. Subjects with greater autonomic feedback tended to report more intense levels of negative emotions. The findings indicate that the perception of autonomic arousal may not be necessary for emotional experience. There were weak trends in our data, however, suggesting that the perception of arousal may enhance the experience of emotional intensity. The subjective well-being reports of the handicapped groups were comparable to those of nonhandicapped subjects, indicating successful coping with their disability.

Adolescent↗
PubMed1988

The role of recombinant IL-2 and IL-1 in murine B cell differentiation.

This study was undertaken to compare and assess the relative contribution by IL-2 and IL-1 to the maturation into antibody-forming cells (AFC) of normal, mitogen-activated, proliferating B cells. Antigen affinity-enriched B cells were cultured under conditions at which T cells and macrophages are limiting. B cells were induced to proliferate upon stimulation with lipopolysaccharide (LPS), but not to mature into AFC. Maturation into AFC of LPS-stimulated B cells required the presence of recombinant interleukin-2 (IL-2). B cells stimulated with IL-2 alone were neither induced to proliferate nor to differentiate into AFC. Recombinant interleukin-1 (IL-1), in the presence of LPS, failed to induce the B cells to differentiate into AFC. However, IL-1 strongly synergized with IL-2 in further enhancing the AFC response. Although it has been known for some time that IL-2 and IL-1 contribute to the B cell response, our results indicate that these lymphokines primarily control the maturation of proliferating B cells into AFC.

Animals↗
PubMed1987

Functions of accessory cells in B cell responses to thymus-independent antigens.

The functions of adherent accessory (A) cells in thymus-independent (TI) B cell activation were investigated using homogeneous A cell lines with distinct cell surface and functional characteristics, as well as inhibitors of antigen processing and interleukin 1 (IL 1) secretion. B cell responses to both type 1 and type 2 TI antigens were found to be strictly A cell dependent. Only A cells capable of IL 1 secretion could restore responsiveness in A cell-depleted spleen cells, regardless of Ia expression or antigen-processing capability. Moreover, recombinant IL 1 completely replaced A cell function in B cell responses to both TI 1 and TI 2 antigens. Finally, T cell depletion did not diminish the reconstitution by IL 1. Thus in contrast to T cell activation, IL 1 secretion is the only A cell function required in TI B cell activation, and the data are consistent with a direct role for IL 1 in B cell activation.

Animals↗
PubMed1987

Comparative functional analysis of helper T lymphocyte responses to soluble and particulate antigens.

An adaptable and sensitive assay to analyze the roles of helper T lymphocytes (TH) which recognize soluble or cell-surface bound antigens in the induction of cytotoxic T lymphocyte precursors (CTLp) is described. Long-term T cell lines that recognize purified protein derivative, keyhole limpet hemocyanin, or Corynebacterium parvum were used in these studies. The ability of T cells from these lines to induce cytotoxic T lymphocyte or antibody responses were compared with their ability to proliferate or release interleukin 2 (IL 2). The results demonstrate that these T cell lines are able to react to soluble antigen by proliferation and IL 2 release. Moreover, the same cell lines are able to interact with CTLp or with the precursors of antibody-secreting B cells to induce a response. In the induction of CTLp we observed an inverse correlation between the number of TH cells required and the concentration of antigen used to pulse the antigen presenting cells. However the correlation between the ability of TH lines to proliferate specifically in response to antigen and to act as helpers for CTLp and B cells was not absolute as cells with compromised proliferative capacity were able to efficiently deliver inductive signals.

Animals↗
PubMed1987

Cognitive operations associated with individual differences in affect intensity.

There are wide individual differences in the characteristic intensity of affective response to the same emotion-evoking event. The processes whereby individuals come to experience strong or mild emotional responses when exposed to the same affect-provoking stimuli are still unclear. In these studies, we propose that individual differences in affect intensity are associated with certain cognitive operations used during exposure to emotion-relevant stimuli. Specifically, cognitive operations that involve personalizing, generalizing, and selective abstraction were hypothesized to discriminate subjects high and low in affect intensity. Two studies replicated support for the hypothesis that subjects high on the affect-intensity dimension engage in more personalizing/empathic and more generalizing/elaborative cognitive operations than do subjects low on the affect-intensity dimension. The same cognitive operations discriminated groups high and low in affect intensity in response to both positive and negative emotional stimuli. Also, the cognitions that discriminated subjects high and low in affect intensity occurred only in response to affective stimuli; neutral stimuli did not evoke divergent cognitive operations for these two groups. Finally, a high degree of consistency was found in the use of emotion-relevant cognitive operations across positive and negative affective stimuli.

Adaptation, Psychological↗
PubMed1987

Immunological competence and host-specific tolerance of antibody-facilitated bone marrow chimeras.

We have generated murine antibody-facilitated (AF) bone marrow chimeras in the genetic combination P1----(P1 X P2)F1 by the simultaneous injection of P1 bone marrow cells and anti-P2 MHC monoclonal antibody into normal (unirradiated) adult (P1 X P2)F1 recipients. These mice have normal life spans and appear to be healthy, with no overt signs of graft-versus-host disease. We have undertaken an extensive survey of the ability of stable, long-term AF chimeras to generate immune responses in vitro and in vivo. Both T and B lymphocyte functions have been analyzed in proliferative and effector cell assays. The AF chimeras respond normally to mitogenic as well as antigenic stimuli, and exhibit normal capacities for cellular collaboration in the generation of immune responses. However, splenic lymphocytes from AF chimeras are substantially and specifically hyporesponsive or nonresponsive to host, P2-encoded, alloantigens in in vitro assays of cell-mediated immunity. This host-specific tolerance is exhibited by the cytotoxic T lymphocyte lineage; T helper cells necessary for the generation of a cytotoxic response may also have decreased reactivity to host determinants. We conclude that our protocol for the production of AF chimeras does not compromise the immune system of chimeric animals but does allow the maintenance of host-specific tolerance, after stable equilibrium has been attained.

Animals↗
PubMed1987

Facilitation of allogeneic bone marrow transplantation by a T cell-specific immunotoxin containing daunomycin.

Daunomycin coupled via an acid-sensitive spacer to monoclonal Thy-1.2-specific antibody was used to purge T lymphocytes from a 1:1 mixture of murine C57BL/6J bone marrow and spleen cells prior to engraftment in fully allogeneic, irradiated BALB/c recipients. Treatment of bone marrow with the immunotoxin at a concentration used for purging had no effect on the viability of committed hematopoietic progenitor or multipotent stem cells. All of the recipients of purged bone marrow were at least 80% chimeric for donor peripheral blood cells and none developed graft-versus-host disease. Out of 50 chimeras, 49 were still alive more than 200 days posttransplantation. The chimeras were shown to be tolerant to donor tissue as tested by mixed lymphocyte reactivity, cell-mediated cytotoxicity, and skin grafting. The same tests revealed full immunocompetence of chimeras to third-party alloantigens. In vivo IgM and IgG antibody responses to sheep red blood cells were similar in magnitude in allogeneically and syngeneically reconstituted mice.

Animals↗