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51.
McAuley JD Jones MR 《Journal of experimental psychology. Human perception and performance》2003,29(6):1102-1125
Relative merits of interval and entrainment conceptions of the internal clock were assessed within a common theoretical framework by 4 time-judgment experiments. The timing of tone onsets marking the beginning and ending of standard and comparison time intervals relative to a context rhythm were manipulated: onsets were on time, early, or late relative to the implied rhythm, and 2 distinct accuracy patterns emerged. A quadratic ending profile indicated best performance when the standard ended on time and worst performance when it was early or late, whereas a flat beginning profile (Experiments 1-3) indicated uniform performance for the 3 expectancy conditions. Only in Experiment 4, in which deviations from expected onset times were large, did significant effects of beginning times appear in time-discrimination thresholds and points of subjective equality. Findings are discussed in the context of theoretical assumptions about clock resetting, the representation of time, and independence of successive time intervals. 相似文献
52.
Winkler I Sussman E Tervaniemi M Horváth J Ritter W Näätänen R 《Cognitive, affective & behavioral neuroscience》2003,3(1):57-77
The effects of auditory context on the preattentive and perceptual organization of tone sequences were investigated. Two sets
of experiments were conducted in which the pitch of contextual tones was varied, bringing about two different contextual manipulations.
Preattentive auditory organization was indexed by the mismatch negativity event-related potential, which is elicited by violations
of auditory regularities even when participants ignore the sounds (e.g., by reading a book). The perceptual effects of the
contextual manipulations on auditory grouping were assessed using target-detection and orderjudgment tasks. The close correspondence
found between the effects of auditory context on the perceptual and preattentive measures of auditory grouping suggests that
a large part of contextual processing is preattentive. 相似文献
53.
54.
Michael G. MacLean Matthew J. Paradise Ana Mari Cauce 《American journal of community psychology》1999,27(3):405-427
Three models of adolescent substance use, the deviance-prone, affect-regulation, and normative development models, were assessed regarding their ability to predict the substance use of a high-risk homeless adolescent sample with high rates of deviance, depression, and substance use. Hierarchical multiple regression analyses that included tests for curvilinear and gender interaction effects were performed. Results supported the deviance-prone model most strongly, with delinquency but not aggressive behavior predicting substance use. The affect-regulation model received support for females but not for males. With respect to the normative development model, results did not indicate that moderate substance users were better off than abstainers in terms of negative affect or interpersonal relationships. 相似文献
55.
Some influences of accent structure on melody recognition 总被引:1,自引:0,他引:1
Two experiments were carried out to investigate the roles of joint accent structure and familiarity in delayed recognition of relatively long tonal melodies. Melodic themes of target melodies were defined by correlating contour-related pitch accents with temporal accents (accent coupling) during an initial familiarization phase. Later, subjects gave recognition responses to key-transposed versions of the target melodies as well as to decoys with same and different contour accent patterns. In Experiment 1, all to-be-recognized melodies occurred both in an original rhythm, which preserved accent coupling, and in a new rhythm, which did not. Listeners were best at distinguishing targets from different decoys, especially in the original rhythm. In Experiment 2, the familiarity of target tunes and the rhythmic similarity in recognition were varied. Similar rhythms preserved accent coupling, whereas dissimilar rhythms did not. Listeners were most adept in distinguishing familiar targets from different decoys (Experiment 2A), particularly when they appeared in novel but similar rhythms. However, in similar rhythm conditions, listeners also frequently mistook same decoys for targets. With less familiar targets (Experiment 2B), these effects were attenuated, and performance showed general effects of pitch contour. 相似文献
56.
Motivation and Emotion - A small body of research has investigated the relationship between an immoral disposition and schadenfreude. Less work has investigated the relationship between immoral... 相似文献
57.
Carin Marciszko Linda Forssman Ben Kenward Marcus Lindskog Mari Fransson Gustaf Gredebck 《Developmental science》2020,23(3)
In this study, we propose that infant social cognition may ‘bootstrap' the successive development of domain‐general cognition in line with the cultural intelligence hypothesis. Using a longitudinal design, 6‐month‐old infants (N = 118) were assessed on two basic social cognitive tasks targeting the abilities to share attention with others and understanding other peoples' actions. At 10 months, we measured the quality of the child's social learning environment, indexed by parent's abilities to provide scaffolding behaviors during a problem‐solving task. Eight months later, the children were followed up with a cognitive test‐battery, including tasks of inhibitory control and working memory. Our results showed that better infant social action understanding interacted with better parental scaffolding skills in predicting simple inhibitory control in toddlerhood. This suggests that infants' who are better at understanding other's actions are also better equipped to make the most of existing social learning opportunities, which in turn may benefit future non‐social cognitive outcomes. 相似文献
58.
The objective of this study was to investigate the importance of impaired physical health and age in normal cognitive aging. In our cross-sectional, clinical and explorative study, medical and neuropsychological data from 118 voluntary healthy controls aged 26-91 years were collected from five recruitment occasions. Health was assessed according to a criterion reflecting clinical and subclinical severity. The examinations included a clinical investigation, brain neuroimaging, and a comprehensive neuropsychological assessment. Regression analyses showed a significant incidence of clinical and subclinical medical disorders that explained 10.8% of the variation in cognitive performance, while age-related impairment explained 5.6%. Findings of the central nervous system were important but various other medical findings explained about half of the health-related variation. Cognitively demanding tasks were more susceptible to impaired physical health while tasks comprising salient motor- and visual spatial elements were more prone to be impaired by age. Our findings suggest (1) that impaired physical health is more important than chronological age in accounting for cognitive impairment across the adult lifespan, (2) that age and health dissociate with regard to cognitive functions affected, and (3) that selection for so-called "super healthy" elderly people might be justified in cognitive research. Because the prevalent diseases in normal aging are potentially preventable, the present findings promise good prospect for prevention of future cognitive disability among elderly people. 相似文献
59.
Stability of nonlinear principal components analysis: an empirical study using the balanced bootstrap 总被引:1,自引:0,他引:1
Principal components analysis (PCA) is used to explore the structure of data sets containing linearly related numeric variables. Alternatively, nonlinear PCA can handle possibly nonlinearly related numeric as well as nonnumeric variables. For linear PCA, the stability of its solution can be established under the assumption of multivariate normality. For nonlinear PCA, however, standard options for establishing stability are not provided. The authors use the nonparametric bootstrap procedure to assess the stability of nonlinear PCA results, applied to empirical data. They use confidence intervals for the variable transformations and confidence ellipses for the eigenvalues, the component loadings, and the person scores. They discuss the balanced version of the bootstrap, bias estimation, and Procrustes rotation. To provide a benchmark, the same bootstrap procedure is applied to linear PCA on the same data. On the basis of the results, the authors advise using at least 1,000 bootstrap samples, using Procrustes rotation on the bootstrap results, examining the bootstrap distributions along with the confidence regions, and merging categories with small marginal frequencies to reduce the variance of the bootstrap results. 相似文献
60.
Mari Mikkola 《Res Publica》2007,13(4):361-380
Some feminist gender sceptics hold that the conditions for satisfying the concept woman cannot be discerned. This has been taken to suggest that (i) the efforts to fix feminism’s scope are undermined because of
confusion about the extension of the term ‘woman’, and (ii) this confusion suggests that feminism cannot be organised around
women because it is unclear who satisfies woman. Further, this supposedly threatens the effectiveness of feminist politics: feminist goals are said to become unachievable,
if feminist politics lacks a clear subject matter. In this paper, I argue that such serious consequences do not follow from
the gender sceptic position.
I presented an earlier version of this paper at the ‘Stirling Political Philosophy Group’ meeting and am grateful to those
present for their constructive criticisms. I am also grateful to Alan Millar, the anonymous referees for this journal and
Jenny Saul (who has read more than one version of this paper!) for their detailed and extremely helpful comments and suggestions. 相似文献