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121.
Sara Cvetkovska Maykel Verkuyten Levi Adelman Kumar Yogeeswaran 《British journal of psychology (London, England : 1953)》2021,112(3):781-803
Tolerating or condoning practices that one finds objectionable is typically considered a positive way to negotiate intergroup differences. However, being the target of tolerance might harm well-being, which we examined in three studies (a survey and two experiments) among a total of 1,054 members of various racial/ethnic minority groups in the United States. In Study 1, we found that perceiving oneself to be tolerated on the basis of one’s ethnic group membership was associated with more negative well-being. In Study 2, we found that bringing to mind experiences of being tolerated results in less positive and more negative affect than thinking about experiences of acceptance, but more positive and less negative outcomes than thinking about overt discrimination experiences. In Study 3, we replicated the results of Study 2 while demonstrating that threat to social identity needs mediates the tolerance–well-being link. These results suggest that being tolerated is related to minority targets’ well-being in ways that are intermediate between being treated with outright discrimination and full acceptance, but that being tolerated follows a pattern closer to discrimination. 相似文献
122.
The behavioral profiles generated by a benzodiazepine (BDZ) agonist (diazepam), an “inverse” agonist (β-carboline-3-carboxylate ethyl ester, βC-3-CEE), and dihydro-(DHβCs) and tetrahydro-β-carbolines (THβCs) were investigated on aggressive isolated mice using a computerized ethopharmacological technique. Augmentation of intraspecific sociability with a concurrent reduction of aggression are characteristic features of diazepam's effects, whereas βC-3-CEE exerts the opposite effects. βC-3-CEE countered the prosocial activity of diazepam and had intrinsic activities on intraspecific behaviour. Some DHβCs (harmalol and 6-methoxy-harmalan) and THβCs (1-methyl-6-hydroxy-THβC and tetrahydronorharmane) may exacerbate aggression at low (BDZ-negative) doses (1 mg/kg), and inhibit such behavior at higher (serotonin-positive) doses (10-15 mg/kg). The ethological profiles of DHβCs were different from the profiles of THβCs. Differences in ethological profiles of βC-3-CEE, DHβCs, and THβCs seem to reflect the neurochemical (mainly BDZ-and serotonergic) properties of these substances. 相似文献
123.
S. Levi Taylor Edgar C. O'Neal Travis Langley Ann Houston Butcher 《Aggressive behavior》1991,17(4):193-206
We tested the notion that angered persons' aggression would be increased through a process of excitation transfer when they are deindividuated, but that individuated subjects would be most aggressive in circumstances under which they could use the information that they had ingested an arousing drug as a pretext for their aggression. Sixty-two male undergraduates participated under either deindividuated or individuated conditions, ingested either 350 mg of caffeine or a placebo, were informed that they had either taken a stimulant or a nonarousing drug, and were all angered by a confederate. According to prediction, when deindividuated and aroused by caffeine the amount of noxious stimulation subjects delivered to the provocateur was greater if they believed that the drug they had taken was nonarousing than if they thought it was a stimulant; in contrast, individuated subjects' aggression was greater when aroused subjects believed the drug was a stimulant. The results are discussed in terms of excitation transfer and the effect of aggression inhibition on the use of information about one's arousal. 相似文献
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Illusory contours are not well understood, partially because a lack of physical substance complicates their specification via physical standards. One solution is to gauge illusory contours with respect to luminance-defined contours, which are easily quantified physically. Accordingly, we chose a metric (perceived contrast) that expresses illusory contour strength in terms of the physical contrast of luminance-defined contours. Using this metric, adult observers adjusted the contrast of a luminance-defined contour until it matched the perceived contrast of an illusory contour. Illusory contour length, inducer size, and inducer contrast all influenced illusory contour strength.. The results are adequately explained via low-level visual processes. It appears that matching paradigms can be beneficial in quantitative studies of illusory contours. 相似文献
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Asymmetric patterns have several spatially distinct cues for spatial localization. These cues include the peak of the luminance distribution, the centroid of the contrast distribution, zero-crossings in the second derivative of the luminance profile, and the midpoint of the visible area. If these cues are represented as primitives in the visual system, the observer should be able to access them at will. To examine whether observers can selectively attend to particular cues, we measured perceived alignment for an asymmetric pattern with two distinct instructions: "align the peak", and "align the center". We found that observers could align the patterns in accord with the instructions with identical precision, suggesting that the peak and the center cues were equally accessible by the observer. We conclude that multiple localization cues are represented in and can be selectively accessed by the visual system. 相似文献
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Examined posttraumatic stress (PTS) symptoms in children following pediatric traumatic brain injury (TBI). Children (ages 6-12) with TBI (n = 81) and orthopedic injury (OI; n = 59) were assessed 6 and 12 months postinjury. Parents of children with severe TBI reported higher levels of child PTS symptoms than did parents of children with moderate TBI or OI at the 6- and 12-month follow-ups. Group differences in child-reported PTS symptoms emerged at the 12-month follow-up with higher symptom levels reported by children with severe TBI than by those with moderate TBI or OI. At both follow-ups, rates of clinically significant symptom levels were higher in the severe TBI group than in the moderate TBI or OI groups. The group differences in parent and child reports were significant even after taking ethnicity, social disadvantage, and age at injury into account. Parent and child reports of child PTS symptoms were related to family socioeconomic status. Implications for clinical intervention with children and families following pediatric TBI are discussed. 相似文献