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711.
712.
According to the zero-acquaintance paradigm gay men and lesbians possess the ability to identify other homosexuals accurately after only very brief interpersonal contact. Given the vulnerability gay men and lesbians face in terms of antigay violence and prejudice, perceptual accuracy provides self-protection. In an exploratory study, 123 respondents were classified as low, moderate, and high perceivers on the basis of their responses to a recognition index designed by the authors. Next, respondents rated on a series of 5-point Likert scales the helpfulness of several characteristics for identifying gay men and lesbians. Analysis supported the importance of eye contact for lesbians and gay men in identifying one another. For both lesbian and gay male participants, several other variables emerged as significantly helpful in identifying gay men: clothing style and fit, jewelry, facial expressions, posture, body type, walk or gait, and both the types and frequencies of gestures. 相似文献
713.
Most commonly, the biology of menopause is equated with the biomedical model of menopause. The biomedical model emphasizes the central importance of estrogen and has an overriding focus on disease. A broader-biological model is presented, which emphasizes the role of hormones in healthy functioning. Hormones are team players in complex, multidetermined systems that have a purpose. Hormones act in concert with other physiological systems and with sensory and social inputs. Human biology is both similar to and different from that of other animals. The implications of these assumptions for understanding menopause are discussed, especially the kinds of questions that are asked and the kinds of evidence needed before conclusions are drawn with regard to clinically significant areas. A broader-biological model of menopause provides a framework within which health-related issues can be considered from a perspective that is, on the one hand, more holistic, and on the other hand, more attentive to individual differences. 相似文献
714.
There is evidence that blocking beta-noradrenergic receptors will cause deficits in some forms of learning. We investigated the effects of systemic injections of 1, 5, and 10 mg/kg doses of propranolol on acquisition of delay eyeblink conditioning in 3-month-old Fischer 344 rats. We presented a 3-kHz, 90-dB tone as a conditioning stimulus and a 6 psi airpuff as our unconditioned stimulus to freely moving rats. We monitored eyelid activity using EMG signals. The treatment subjects were injected with either propranolol or saline 0.5 h prior to daily training sessions. Two groups of control subjects, one receiving injections of saline and one receiving injections of 5 mg/kg propranolol, received daily training sessions with unpaired and randomized presentation of the tone and airpuff. Each daily training session for the treatment groups consisted of 27 paired training trials and 3 conditioned stimulus-alone training trials. Rats injected with saline vehicle or with 1 mg/kg propranolol achieved a 60% or better learned response rate within two training sessions. Rats injected with 5 or 10 mg/kg propranolol never achieved a response rate significantly different from animals that received unpaired, random presentations of the tone and airpuff stimuli. These results agree with prior studies from our lab that have shown a dose-dependent effect of beta-noradrenergic receptor blockade on learning in rabbit eyeblink conditioning as well as in a runway, motor learning paradigm. We believe that the beta-noradrenergic system plays an important role in learning and memory in more than one cerebellar-dependent learning paradigm. 相似文献
715.
716.
Paula Cristina Remoaldo Laurentina Vareiro J. Cadima Ribeiro J. Freitas Santos 《Visitor Studies》2013,16(1):89-106
ABSTRACTThe city of Guimarães in Portugal is a place of strong symbolic and cultural significance, and the nomination of its historical center as a World Heritage Site in 2001 enhanced its tourism potential. This study presents the results of a survey conducted in 2010 and 2011 to capture the profile and motivations of tourists visiting Guimarães as a cultural tourism destination. The study addressed two main issues: whether males and females have similar or different preferences in choosing the city as their destination, and whether there are gender differences in the perception of the attributes of Guimarães. A better understanding of the gendered nature of the destination is a valuable cue for shaping products and services according to visitors’ preferences. The results suggest that both men and women are aware of the main elements responsible for the city's World Heritage status. That the destination is a Heritage Site that also offers the opportunity to tour the region has a significant positive effect on male tourists’ choice of Guimarães. Regarding the perceived attributes of the city, results indicate minor gender differences with one exception: Women expressed more apprehension than men regarding the perceived security of the destination. 相似文献
717.
Paula Riddy 《Psychodynamic Practice》2013,19(3):321-329
Abstract Denial in society is discussed with reference to the media's use of language, and application is made of Breznitz's (1983) model of denial. Particular reference is made to the media reporting of crime and the public reactions to BSE and the ensuing beef crisis. Denial is seen as serving as a protection against anxiety over external threats, and against fears of one's own natural impulse to wish death on others. Denial might serve a useful purpose to protect the individual from unnecessary stress, but can possibly lead to a kind of madness in society. 相似文献
718.
Guillermo Vallejo Paula Fernández Marcelino Cuesta Pablo E. Livacic-Rojas 《Multivariate behavioral research》2013,48(1):75-90
This article uses Monte Carlo techniques to examine the effect of heterogeneity of variance in multilevel analyses in terms of relative bias, coverage probability, and root mean square error (RMSE). For all simulated data sets, the parameters were estimated using the restricted maximum-likelihood (REML) method both assuming homogeneity and incorporating heterogeneity into multilevel models. We find that (a) the estimates for the fixed parameters are unbiased, but the associated standard errors are frequently biased when heterogeneity is ignored; by contrast, the standard errors of the fixed effects are almost always accurate when heterogeneity is considered; (b) the estimates for the random parameters are slightly overestimated; (c) both the homogeneous and heterogeneous models produce standard errors of the variance component estimates that are underestimated; however, taking heterogeneity into account, the REML-estimations give correct estimates of the standard errors at the lowest level and lead to less underestimated standard errors at the highest level; and (d) from the RMSE point of view, REML accounting for heterogeneity outperforms REML assuming homogeneity; a considerable improvement has been particularly detected for the fixed parameters. Based on this, we conclude that the solution presented can be uniformly adopted. We illustrate the process using a real dataset. 相似文献
719.
Gerhard Blickle Corinna Diekmann Paula B. Schneider Yvonne Kalthöfer James K. Summers 《European Journal of Work and Organizational Psychology》2013,22(6):899-922
The purpose of this research is to investigate the effect of employees' upward self-presentation through modesty and political skill on their subsequent career success. Study 1 used a predictive design over a 3 year period with 141 employees, controlling for age, gender, and self-esteem. Political skill positively moderated the relationship between employees' upward modesty and career success (attained position, career satisfaction) after 3 years. Study 2 (n = 132 employees) provided construct validation, demonstrating high discriminant validity of the impression management through modesty scale used in Study 1 with a trait-modesty scale, thus attenuating rival explanations of the findings in Study 1. Implications, limitations, and future directions for research are discussed. 相似文献
720.
The repeated suppression of thoughts in response to cues for their expression leads to forgetting on a subsequent test of cued recall (Anderson & Green, 2001). We extended this effect by using homograph cues and presenting them for free association following suppression practice. Cue–target pairs were first learned under integrating imagery instructions; then in the think/no-think phase students practised suppressing thoughts connected to some homograph cues, with or without the assistance of thought substitutes that changed their meaning. Below-baseline forgetting on the subsequent free-association test was found in the production of suppressed targets. Following aided suppression this effect was also obtained in the production of other responses denoting the target-related meaning of the homograph cues. Discussion emphasises the ecological value of the test; rarely do people deliberately attempt recall of unwanted thoughts. 相似文献