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排序方式: 共有75条查询结果,搜索用时 15 毫秒
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Sergiu Dalm Jeannette Grootendorst E. Ron De Kloet Melly S. Oitzl 《Behavior research methods》2000,32(1):134-139
Spatial learning and memory in rodents is most often assessed in the Morris water maze. Neurobiologists have to distinguish behavioral patterns to unravel underlying neuronal systems. We analyzed swim patterns of mice videotaped before and after training with a multitrial procedure in the water maze. In addition to traditional parameters, the animals’ position in relation to trained and other possible platform locations was estimated five times per second by an image analysis system. This parameter,cumulative distance to platform, was correlated with time spent in the platform quadrant but not with latency to and crossings of the platform location. We detected a subgroup of animals with concentric patterns within the group of spatial/persistent patterns. Random patterns were classified as well. Swim patterns before training were not predictive for the one after training. In summary, image analysis systems have made it very convenient to quantify behavior. Using their capacity, we have further improved the analysis of swim patterns, revealing animals’ different approaches to solve a problem. 相似文献
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Jeannette Schmid 《European journal of social psychology》1999,29(7):895-907
Implicit attributions in media coverage of wrestling events are investigated. A special feature of show wrestling is a separation in morally good fighters who win because of their intrinsic goodness and morally bad fighters who win by bending the rules. Thus, show wrestling can be characterized by the attributions it affords. Linguistic abstractness as an index of attributions of dispositionality is measured with the Linguistic Category Model (LCM; Semin & Fiedler, 1988). Analyses of published fight reports in an official wrestling magazine show that goodness and badness is indeed attributed on a stable and global level and that fights with the expected outcome are described in terms of fighters' dispositions in contrast to fights with an unexpected outcome. Copyright © 1999 John Wiley & Sons, Ltd. 相似文献
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Holtzer R Shuman M Mahoney JR Lipton R Verghese J 《Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition》2011,18(1):108-128
We examined the effect of cognitive fatigue on the Attention Networks Test (ANT). Participants were 228 non-demented older adults. Cognitive fatigue was operationally defined as decline in alerting, orienting, and executive attention performance over the course of the ANT. Anchored in a theoretical model implicating the frontal basal ganglia circuitry as the core substrate of fatigue, we hypothesized that cognitive fatigue would be observed only in executive attention. Consistent with our prediction, significant cognitive fatigue effect was observed in executive attention but not in alerting or orienting. In contrast, orienting improved over the course of the ANT and alerting showed a trend, though insignificant, that was consistent with learning. Cognitive fatigue is conceptualized as an executive failure to maintain and optimize performance over acute but sustained cognitive effort resulting in performance that is lower and more variable than the individual's optimal ability. 相似文献
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Stephanie Milan Trace S. Kershaw Jessica Lewis Claire Westdahl Sharon Schindler Rising Mary Patrikios Jeannette R. Ickovics 《Psychology of women quarterly》2007,31(3):241-251
Prenatal depressive symptoms have been linked to negative outcomes for mothers and children. Using attachment theory as a framework, this study examined developmental differences in the interpersonal context of prenatal depressive symptoms among adolescents (age 14 to 19 years; n = 352) and young adults (age 20 to 24 years; n = 348). Participants included low-income, single, predominantly African American and Latina women. Moderating and mediating factors were found in the relation between caregiving history (perceived unavailability and inconsistency of maternal and paternal figures during childhood) and depressive symptoms. For pregnant adolescents, maternal unavailability predicted depressive symptoms whereas maternal inconsistency did not. In contrast, for pregnant young women, only maternal inconsistency predicted depressive symptoms; and this association was mediated by perceptions of prenatal support. For both groups, paternal caregiving history had a small yet independent association with depressive symptoms. Results highlight the need to consider developmental differences in the interpersonal context of prenatal depressive symptoms in delivering mental health interventions to young women of color. 相似文献
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Berghout C van Ginkel J Groeneweg N Israëls H Kas A Lesniewski U van Stempvoort J 《Psychological reports》2002,90(2):461-465
In 1993 Albach investigated the long-term consequences of sexual abuse on psychological health. A group of abused women a a control group of nonabused women were asked to fill in a questionnaire assessing posttraumatic stress disorder (PTSD). For ethical reasons, the abused women were warned that filling in the questionnaire might be emotionally stressful. The control group did not receive this warning. The abused women scored higher on the questionnaire than the nonabused women. The warning they received may have influenced their reports. Our experiment investigated this. 101 psychology students were divided into two groups, one who received a warning and a control group who did not. The hypothesis was that people who had been previously warned would score higher on a PTSD questionaire than people who had not. There were, however, no significant differences in mean PTSD scores and no known initial differences between groups. 相似文献
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Pfeifer JH Rubble DN Bachman MA Alvarez JM Cameron JA Fuligni AJ 《Developmental psychology》2007,43(2):496-507
Ethnic and American identity, as well as positivity and negativity toward multiple social groups, were assessed in 392 children attending 2nd or 4th grade in various New York City neighborhoods. Children from 5 ethnic groups were recruited, including White and Black Americans, as well as recent immigrants from China, the Dominican Republic, and the former Soviet Union. For ethnic minority children, greater positivity bias (evaluating one's ingroup more positively than outgroups) was predicted by immigrant status and ethnic identity, whereas negativity bias (evaluating outgroups more negatively than one's ingroup) was associated with increased age, immigrant status, and (among 4th graders only) ethnic identity. In addition, a more central American identity was associated with less intergroup bias among ethnic minority children. 相似文献