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161.
162.
Backhaus J Hoeckesfeld R Born J Hohagen F Junghanns K 《Neurobiology of learning and memory》2008,89(1):76-80
While there is mounting evidence for the importance of sleep for declarative memory consolidation in adults, so far this issue has not been investigated in children despite considerable differences in sleep duration and sleep architecture between children and adults. Here, 27 children (aged between 9 and 12yr) were examined on two conditions: on the Sleep-Wake condition, subjects learned word pairs in the evening and delayed recall was tested first in the next morning after sleep and then again in the following evening after daytime wakefulness. On the Wake-Sleep condition, learning took place in the morning and delayed recall was tested in the evening of the same day and again in the next morning after sleep. In both conditions retention of declarative memory was significantly increased only after an interval of sleep that either followed immediately after learning (as in the Sleep-Wake condition) or that followed after daytime wakefulness (as in the Wake-Sleep condition), respectively. The results support the hypothesis that sleep plays an active role in declarative memory consolidation even if delayed and further show for the first time the importance of sleep for declarative memory consolidation during childhood. 相似文献
163.
There is a surprising degree of overlapping structure evident across the languages of the world. One factor leading to cross-linguistic similarities may be constraints on human learning abilities. Linguistic structures that are easier for infants to learn should predominate in human languages. If correct, then (a) human infants should more readily acquire structures that are consistent with the form of natural language, whereas (b) non-human primates' patterns of learning should be less tightly linked to the structure of human languages. Prior experiments have not directly compared laboratory-based learning of grammatical structures by human infants and non-human primates, especially under comparable testing conditions and with similar materials. Five experiments with 12-month-old human infants and adult cotton-top tamarin monkeys addressed these predictions, employing comparable methods (familiarization-discrimination) and materials. Infants rapidly acquired complex grammatical structures by using statistically predictive patterns, failing to learn structures that lacked such patterns. In contrast, the tamarins only exploited predictive patterns when learning relatively simple grammatical structures. Infant learning abilities may serve both to facilitate natural language acquisition and to impose constraints on the structure of human languages. 相似文献
164.
Heppner WL Kernis MH Lakey CE Campbell WK Goldman BM Davis PJ Cascio EV 《Aggressive behavior》2008,34(5):486-496
Recent research and theory suggest that mindfulness, or enhanced attention and awareness in the present moment [Brown and Ryan, 2003], may be linked to lower levels of ego-involvement and, as a result, may have implications for lowering hostility and aggressive behavior. Accordingly, we conducted two studies to examine the potential aggression-mitigating role of mindfulness. In Study 1, we found that dispositional mindfulness correlated negatively with self-reported aggressiveness and hostile attribution bias. In Study 2, participants made mindful before receiving social rejection feedback displayed less-aggressive behavior than did rejected participants not made mindful. Discussion centers on potential mechanisms by which mindfulness operates to reduce aggressive behavior. 相似文献
165.
Gawronski B Peters KR Brochu PM Strack F 《Personality & social psychology bulletin》2008,34(5):648-665
Research on racial prejudice is currently characterized by the existence of diverse concepts (e.g., implicit prejudice, old-fashioned racism, modern racism, aversive racism) that are not well integrated from a general perspective. The present article proposes an integrative framework for these concepts employing a cognitive consistency perspective. Specifically, it is argued that the reliance on immediate affective reactions toward racial minority groups in evaluative judgments about these groups depends on the consistency of this evaluation with other relevant beliefs pertaining to central components of old-fashioned, modern, and aversive forms of prejudice. A central prediction of the proposed framework is that the relation between "implicit" and "explicit" prejudice should be moderated by the interaction of egalitarianism-related, nonprejudicial goals and perceptions of discrimination. This prediction was confirmed in a series of three studies. Implications for research on prejudice are discussed. 相似文献
166.
Allhoff F 《The American journal of bioethics : AJOB》2008,8(2):15-6; discussion W1-3
167.
Mediation analysis is widely used in the social sciences. Despite the popularity of mediation models, few researchers have used graphical methods, other than structural path diagrams, to represent their models. Plots of the mediated effect can help a researcher better understand the results of the analysis and convey these results to others. This article presents a method for creating and interpreting plots of the mediated effect for a variety of mediation models, including models with (1) a dichotomous independent variable, (2) a continuous independent variable, and (3) an interaction between an independent variable and the mediating variable. An empirical example is then presented to illustrate these plots. Sample code for creating plots of the mediated effect in R and SAS is also included, and may be downloaded from www.psychonomic.org/archive. 相似文献
168.
Human enhancement, in which nanotechnology is expected to play a major role, continues to be a highly contentious ethical
debate, with experts on both sides calling it the single most important issue facing science and society in this brave, new
century. This paper is a broad introduction to the symposium herein that explores a range of perspectives related to that
debate. We will discuss what human enhancement is and its apparent contrast to therapy; and we will begin to tease apart the
myriad intertwined issues that arise in the debate: (1) freedom & autonomy, (2) health & safety, (3) fairness & equity, (4)
societal disruption, and (5) human dignity.
相似文献
Fritz AllhoffEmail: Email: |
169.
Amir Ashkenazi Michael Fritz John Buckley Lawrence E Marks 《Behavior research methods, instruments & computers》2004,36(1):83-88
We describe a new, open flow device for presenting taste stimuli to human subjects under controlled conditions of timing. The device delivers each stimulus as a mist to the participant's tongue through one of 16 nozzles attached to a linear slide. Software controls the position of the slide, the duration of the stimulus, and the duration of the pre- and poststimulus water rinses and records the responses of the participant. Temporal characteristics of this system make it especially applicable to studies on the role of attention in taste perception. 相似文献
170.
Two studies investigated the influence of cognitive dissonance on explicit and implicit attitudes. Employing the induced compliance paradigm, participants wrote a counterattitudinal essay under conditions of either high or low perceived situational pressure; control participants did not write an essay. Consistent with dissonance theory, results indicated a more favorable explicit attitude toward the initially counterattitudinal position when perceived situational pressure was low, but not when it was high. Implicit attitudes, however, were unaffected by dissonance manipulations. Moreover, explicit attitudes were significantly related to implicit attitudes under high perceived situational pressure and control conditions, but not when perceived situational pressure was low. Results are discussed in terms of associative versus propositional modes of information processing. 相似文献