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281.
The aim of this study was to look at motivations behind altruistic behavior in virtual communities by studying the sharing of game tips by experienced gamers. We examine several possible motivations (pure altruism, generalized reciprocity, and reputation) and qualitatively analyze tip types in terms of usefulness, visibility, and skill level. We found that in games that do not support a "performance stage" for skill demonstration, players often share game tips as a strategy to attract attention. To a certain degree, reciprocity can be used to explain small favor exchanges, but earning social reputation is often a much stronger motivating factor. 相似文献
282.
Ho A 《The American journal of bioethics : AJOB》2006,6(1):26-8; discussion W27-8
283.
Parsell M 《Cognitive processing》2006,7(1):3-10
Clark and Chalmers (1998) have argued that mental states can be extended outside an organism's skin. In response to some worries about the availability, reliability and portability of such extended resources, Clark (2005) offers a set of rough criteria that non-biological objects must fulfil to legitimately ground mental states. One such criterion is that the information retrieved from these non-biological sources be (more or less) automatically endorsed. But Sterelny (2003, 2005) has persuasively argued that the extended sphere is epistemologically opaque: a domain of contested truth and deliberate deception. As such, retrieving information from this domain requires the deployment of social guards for the information to remain reliable. But deploying such guards would seem to endanger endorsability by increasing cognitive load. Here I demonstrate that deploying social guards does not increase cognitive load if the guards are implemented in a highly distributed connectionist economy or off-loaded to the external environment. 相似文献
284.
Sanbonmatsu DM Posavac SS Vanous S Ho EA 《Personality & social psychology bulletin》2005,31(2):254-266
A series of experiments examined how the search for information in the testing of hypotheses is affected by quantifiers that specify the frequency of the test relation. The experiments showed that a positive search is used more in the testing of propositions in which some instances are predicted to have the test relation than in the testing of propositions in which most or few instances are predicted to have the test relation. In addition, the studies demonstrated that a negative or disconfirmatory search is more likely to characterize tests of absolute hypotheses than tests of hypotheses of the majority or minority form. Finally, the findings indicated that a negative search also is more common in tests of hypotheses predicting the absence rather than the presence of a phenomenon. Thus, as expected, participants generally engaged in a diagnostic search rather than the confirmatory search for information that has been so ubiquitous in previous research. 相似文献
285.
Ho MH Regenwetter M Niederée R Heyer D 《Journal of experimental psychology. Learning, memory, and cognition》2005,31(2):365-373
D. von Winterfeldt, N.-K. Chung, R. D. Luce, and Y. Cho (1997) provided several tests for consequence monotonicity of choice or judgment, using certainty equivalents of gambles. The authors reaxiomatized consequence monotonicity in a probabilistic framework and reanalyzed von Winterfeldt et al.'s main experiment via a bootstrap method. Their application offers new insights into consequence monotonicity as well as into von Winterfeldt et al.'s 3 experimental paradigms: judged certainty equivalents (JCE), QUICKINDIFF, and parameter estimation by sequential testing (PEST). For QUICKINDIFF, the authors found no indication of violations of "random consequence monotonicity." This sharply contrasts the findings of von Winterfeldt et al., who concluded that axiom violations were the most pronounced under that procedure. The authors found potential evidence for violations in JCE and certainty equivalents derived from PEST. 相似文献
286.
Man Yee Ho Fanny M. Cheung Jin You Chester Kam Xin Zhang Wendy Kliewer 《Personality and individual differences》2013
This study investigated the associations among exposure to violence, emotional stability, and psychological symptoms. The moderating role of emotional stability in the relationship between exposure to violence and anxiety and depression was examined in a sample of 482 high school students in Hong Kong. Results showed that both witnessing violence and low levels of emotional stability were positively associated with symptoms of anxiety and depression. Low levels of emotional stability exacerbated the relation between witnessing violence and symptoms of anxiety and depression; the opposite pattern was found among adolescents with high levels of emotional stability. This study sheds light on the role of emotional stability in ameliorating the detrimental effects of witnessing violence on symptoms of anxiety and depression among adolescents. Findings of this study also have implications for the development of emotionally healthy personalities. 相似文献
287.
288.
ABSTRACTWe investigated whether attractiveness ratings of expressive faces would be affected by gaze shifts towards or away from the observer. In all experiments, effects of facial expression were found, with higher attractiveness ratings to positive over negative expressions, irrespective of effects of gaze-shifts. In the first experiment faces with gaze shifts away from the observer were preferred. However, when the dynamics of the gaze shift was disrupted, by adding an intermediate delay, the effect of direction of gaze shift disappeared. By manipulating the relative duration of each gaze direction during a gaze shift we found higher attractiveness ratings to faces with a longer duration of direct gaze, particularly in the initial exposure to a face. Our findings suggest that although the temporal dynamics of eye gaze and facial expressions influence the aesthetic evaluation of faces, these cues appear to act independently rather than in an integrated manner for social perception. 相似文献
289.
Bruce C. Hansen Pamela J. Rakhshan Arnold K. Ho Sebastian Pannasch 《Visual cognition》2013,21(5):612-642
It is well known that we utilize internalized representations (or schemas) to direct our eyes when exploring visual stimuli. Interestingly, our schemas for human faces are known to reflect systematic differences that are consistent with one's level of racial prejudice. However, whether one's level or type of racial prejudice can differentially regulate how we visually explore faces that are the target of prejudice is currently unknown. Here, White participants varying in their level of implicit or explicit prejudice viewed Black faces and White faces (with the latter serving as a control) while having their gaze behaviour recorded with an eye-tracker. The results show that, regardless of prejudice type (i.e., implicit or explicit), participants high in racial prejudice examine faces differently than those low in racial prejudice. Specifically, individuals high in explicit racial prejudice were more likely to fixate on the mouth region of Black faces when compared to individuals low in explicit prejudice, and exhibited less consistency in their scanning of faces irrespective of race. On the other hand, individuals high in implicit racial prejudice tended to focus on the region between the eyes, regardless of face race. It therefore seems that racial prejudice guides target-race specific patterns of looking behaviour, and may also contribute to general patterns of looking behaviour when visually exploring human faces. 相似文献
290.