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281.
Laurie T. O'Brien Brenda Major Stefanie Simon 《Journal of experimental social psychology》2012,48(6):1225-1233
The present research examined the attributions that people make when an individual rejects a member of his or her own group in favor of a member of an outgroup (i.e., ingroup rejection). Study 1 showed that Latinos rejected by an ingroup member (perpetrator) made more attributions to discrimination than Whites under similar circumstances. Study 2 showed that Latinos made more attributions to discrimination for ingroup rejection when the perpetrator was Latino as compared to when the perpetrator was White, whereas Whites' attributions to discrimination were relatively low regardless of perpetrator's ethnicity. Study 3 showed that priming loyalty norms increased attributions to discrimination among Latinos in response to ingroup rejection, but not in response to outgroup rejection. This research brings a new perspective to discrimination research by focusing on intragroup rejection and nonprototypical cases of discrimination. 相似文献
282.
Ana Sofia Santos Leonel Garcia-Marques Diane M. Mackie Mário B. Ferreira B. Keith Payne Sérgio Moreira 《Journal of experimental social psychology》2012,48(6):1257-1266
Although stereotypes have traditionally been regarded as stable, research has documented their considerable malleability. One potential source of such malleability is intrusion into the stereotype of other concepts also activated when the stereotype is activated. In three experiments we assessed the extent to which stereotypes were influenced by stereotypic, stereotype-unrelated, or counter-stereotypic traits activated in a completely unrelated context immediately prior to stereotype measurement. Across experiments, priming of stereotype-unrelated traits increased their inclusion in the stereotype, whereas priming of counter-stereotypic traits had no effect in the subsequently assessed stereotype. In Experiment 3 we collected perceived dispersion measures and showed that although priming counter-stereotypic traits had no effect on overall characterization of the target group, it boosted perceptions of the group's variability. We accounted for these results by extending Higgins' (1989) Synapse Model of knowledge accessibility to the stereotype domain. 相似文献
283.
Ebesutani C Drescher CF Reise SP Heiden L Hight TL Damon JD Young J 《Journal of personality assessment》2012,94(4):427-437
Although reverse-worded items have often been incorporated in scale construction to minimize the effects of acquiescent reporting biases, some researchers have more recently begun questioning this approach and wondering whether the advantages associated with incorporating reverse-worded items is worth the complexities that they bring to measures (e.g., Brown, 2003 ; Marsh, 1996 ). In this study, we used item response theory (IRT) to determine whether there is statistical justification to eliminate the reverse-worded items (e.g., "I have lots of friends") from the Loneliness Questionnaire (LQ; Asher, Hymel, & Renshaw, 1984) and retain only the non-reverse-worded items (e.g., "I'm lonely") to inform the provision of a shortened LQ version. Using a large sample of children (Grades 2-7; n = 6,784) and adolescents (Grades 8-12; n = 4,941), we examined the psychometric properties of the 24-item LQ and found support for retaining the 9 non-reverse-worded LQ items to make up a shortened measure of loneliness in youth. We found that the non-reverse-worded items were associated with superior psychometric properties relative to the reverse-worded items with respect to reliability and IRT parameters (e.g., discrimination and item information). A 3-point Likert-type scale was also found to be more suitable for measuring loneliness across both children and adolescents compared to the original 5-point scale. The relative contributions of reverse-worded and non-reverse-worded items in scale development for youth instruments are also discussed. 相似文献
284.
Lazaroni TL Raslan AC Fontes WR de Oliveira ML Bader M Alenina N Moraes MF Dos Santos RA Pereira GS 《Neurobiology of learning and memory》2012,97(1):113-123
It has been shown that the brain has its own intrinsic renin-angiotensin system (RAS) and angiotensin-(1-7) (Ang-(1-7)) is particularly interesting, because it appears to counterbalance most of the Ang II effects. Ang-(1-7) exerts its biological function through activation of the G-protein-coupled receptor Mas. Interestingly, hippocampus is one of the regions with higher expression of Mas. However, the role of Ang-(1-7)/Mas axis in hippocampus-dependent memories is still poorly understood. Here we demonstrated that Mas ablation, as well as the blockade of Mas in the CA1-hippocampus, impaired object recognition memory (ORM). We also demonstrated that the blockade of Ang II receptors AT1, but not AT2, recovers ORM impairment of Mas-deficient mice. Considering that high concentrations of Ang-(1-7) may activate AT1 receptors, nonspecifically, we evaluate the levels of Ang-(1-7) and its main precursors Ang I and Ang II in the hippocampus of Mas-deficient mice. The Ang I and Ang II levels are unaltered in the whole hipocampus of MasKo. However, Ang-(1-7) concentration is increased in the whole hippocampus of MasKo mice, as well as in the CA1 area. Taken together, our findings suggest that the functionality of the Ang-(1-7)/Mas axis is essential for normal ORM processing. 相似文献
285.
Feldman LB Kostić A Gvozdenović V O'Connor PA Moscoso del Prado Martín F 《Psychonomic bulletin & review》2012,19(4):668-676
Semantically similar (e.g., coolant-COOL) primes have produced greater facilitation than have form-similar but semantically dissimilar (e.g., rampant-RAMP) primes when English words have appeared in the forward-masked primed lexical decision task (Feldman, O'Connor, & Moscoso del Prado Martín, Psychonomic Bulletin & Review 16: 684-691, 2009). These results challenge claims that form-based, semantically blind activation underlies early morphological facilitation. Some have argued that the English materials in previous studies were not ideally constructed, insofar as the types of spelling changes to affixed stems differed in the semantically similar and dissimilar pairs. The present study exploited Serbian's bialphabetism, rich morphology, and homographic (form-identical) stems to replicate early effects of semantic similarity. Furthermore, it incorporated within-target manipulations of prime type and of alphabet, such that the alphabets of the prime-target pairs matched in Experiment 1a and alternated in Experiment 1b. Importantly, no letter or phoneme changes occurred between the stems of the primes and targets. These results revealed significant effects of semantic similarity that are comparable with and without alphabet alternation. The semantic effects in Serbian replicated almost exactly those in English (Feldman et al., Psychonomic Bulletin & Review 16: 684-691, 2009), which suggests that even early in the course of processing, morphemes are units of meaning as well as of form. The results failed to support models of lexical processing that postulate sequential access, first to the morphological form, and then to the semantic aspects of words. 相似文献
286.
Lovatel GA Bertoldi K Elsner VR Vanzella C Moysés Fdos S Spindler C Funck VR Pereira LM de Oliveira CV Oliveira MS Netto CA Siqueira IR 《Neurobiology of learning and memory》2012,98(2):182-187
Exercise induces brain function adaptations and improves learning and memory; however the time window of exercise effects has been poorly investigated. Studies demonstrate an important role for cyclooxygenase-2 (COX-2) pathway function in the mechanisms underlying memory formation. The aim of present work was to investigate the effects of treadmill exercise on aversive memory and COX-2, PGE(2) and E-prostanoid receptors contents in the rat hippocampus at different time points after exercise has ended. Adult male Wistar rats were assigned to non-exercised (sedentary) and exercised (running daily for 20min, for 2weeks) groups. The inhibitory avoidance task was used to assess aversive memory and the COX-2, PGE(2) and E-prostanoid receptors (EP1, EP2, EP3 and EP4) levels were determined 1h, 18h, 3days or 7days after the last training session of treadmill exercise. The step down latency in the inhibitory avoidance, COX-2 and EP4 receptors levels were acutely increased by exercise, with a significant positive correlation between aversive memory performance and COX-2 levels. Increased EP2 content decreased PGE(2) levels were observed 7days after the last running session. The treadmill exercise protocol facilitates inhibitory avoidance memory and induces time-dependent changes on COX-2 pathways function (COX-2, PGE(2) and EP receptors). 相似文献
287.
Penner Francesca Elzaki Yasmin Contreras Haglaeeh T. Santos Roberto P. Sarver Dustin E. 《Journal of abnormal child psychology》2022,50(9):1121-1138
Research on Child and Adolescent Psychopathology - The COVID-19 pandemic has led to increased mental health concerns, including depression and anxiety among parents and internalizing and... 相似文献
288.
289.
Abstract The family systems approach to drug abuse has illuminated the dysfunctional family dynamics often associated with adolescent drug abuse. However, for adults with long histories of drug problems, the model is less compelling. Evidence suggests that cultural variations, social class differences, individual and family life cycle development, and gender influence the origins and continuance of long-term drug abuse. Examples are offered of how these factors shape the adult course of drug addiction. The authors suggest that clinicians learn the particular meanings of individuals' family ties, dependencies and living arrangements. In doing so, they will consider the broader context in which drug abuse occurs and will enhance the accuracy and effectiveness of their assessments and treatment strategies. 相似文献
290.
Manuela Romo Santos 《Estudios de Psicología》2013,34(18):43-46
RESUMENTanto en la perspectiva diferencial como en el análisis cognitivo o más ligado a la “psicología general”, el problema de la creatividad ha preocupado a los psicólogos durante décadas. Bajo la etiqueta general de “creatividad” se sitúan algunos de los interrogantes más apasionantes que se pueden estudiar en psicología: Definición de creatividad, procesos implicados en la creatividad, la existencia de diferencias individuales. En este artículo se hace una revisión sumaria de las distintas teorías del proceso creador de Bus y Mansfield, que han intentado dar cuenta de los interrogantes antes mencionados. 相似文献