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排序方式: 共有126条查询结果,搜索用时 15 毫秒
1.
It has been suggested that the systematic decline of partial report as the delay of the partial-report cue increases is due to a time-related loss of location information. Moreover, the backward masking effect is said to be precipitated by the disruption of location information before and after identification. Results from three experiments do not support these claims when new indices of location information and of item information are used. Instead, it was found that the systematic decline in partial report was due to a time-related loss of item information, and location information was affected neither by the delay of the partial-report cue nor by the delay of backward masking. Subjects adopted the "select-then-identify" mode of processing. 相似文献
2.
Initial environment influences amphetamine-induced stereotypy: subsequently environment change has little effect 总被引:1,自引:0,他引:1
Saline-treated and amphetamine-treated (7 mg/kg, ip, immediate) male rats from a Sprague-Dawley substrain were observed in two test environments designed to elicit different investigative responses in normal rats. Snout contact with the substrate was generated by placing the rat in a small enclosed cage. Absence of snout contact was induced by placement of the rat on a square elevated platform. Detailed ethological records were kept of locomotion, rearing, sitting, grooming, gnawing, and sleeping throughout the 90-min session. Amphetamine-treated rats incorporated environmentally contingent bodily postures into their forms of stereotyped behavior. The postures were characteristic of those evinced initially by the saline-treated rats in the same test environment. The control rats showed appropriate changes in their investigative behavior when the apparatus was changed at 10 and at 30 min postinjection. The amphetamine-treated rats, however, were completely unresponsive to such changes at 30 min and only partially so at 10 min postinjection. It was concluded that there is a temporal gradient of decreasing readiness to modify repetitive behavior after a single, large dose of amphetamine. 相似文献
3.
Siu L. Chow 《Memory & cognition》1994,22(5):525-532
Using a signal-detection task, the generality of Turvey’s (1973) onset-onset rule was tested in our experiments. After seeing, in succession, (1) one or two letters (target display), (2) a multiletter detection display, and (3) a mask display, subjects decided whether or not the letter or letters in the target display reappeared in the succeeding detection display at different levels of detection-display duration in various situations. The subjects’ sensitivity was inconsistent with the onset-onset rule. More specifically, sensitivity increased with increases in display duration within a fixed stimulus onset asynchrony of 150 msec. Display duration, however, had no effect on response bias. Nor was there any interaction between display duration and display size in terms of either sensitivity or response bias. The more complicated relationship between display duration and display size does not invalidate the departure from the onset-onset rule. 相似文献
4.
It is shown that deterministic models can compete effectively with stochastic models in summarizing concept identification behavior. Three groups of deterministic models are examined. Examination of individual learners' trial by trial behavior in a concept experiment shows: (1) One person exhibited behavior consistent with a Hypothesis Permutation (HP) model despite being a nonlearner who showed no evidence of improvement over a period of 24 trials. However, when all 50 persons studied in each of two treatment groups were examined, only 22 members of one group and 10 of the other showed no inconsistencies with deterministic local consistency assumptions. (2) Certain deterministic computer programs could find at least one satisfactory order for predicting all responses by 18 of the 22 consistent solvers and 6 of the 10 consistent solvers, respectively, in the two groups just mentioned. For these 24 persons, then, a less restrictive deterministic model is adequate than for the others. (3) Those 38 original members of the first treatment group who met a stringent learning criterion were compared with respect to predictions generated by stochastic and mathematized deterministic models. One deterministic model (RSS-U 9-state) is in some respects the best of the models examined, but this success is a partial reflection of estimating eight parameters from the data. 相似文献
5.
Philosophia - Thomas Christiano argues that democracies acquire a right to rule by being the unique embodiment of publicly accessible rules. Justice requires the equal advancement of the interests... 相似文献
6.
Lowery BS Chow RM Knowles ED Unzueta MM 《Journal of personality and social psychology》2012,102(2):323-336
This article finds that, when faced with racial inequity framed as White advantage, Whites' desire to think well of their racial group increases their support for policies perceived to harm Whites. Across 4 studies, the article provides evidence that (a) relative to minority disadvantage, White advantage increases Whites' support for policies perceived to reduce their group's economic opportunities, but does not increase support for policies perceived to increase minority opportunities; and (b) the effect of White advantage on Whites' esteem for their ingroup drives the effect of inequity frame on support for policies perceived to reduce Whites' opportunities. 相似文献
7.
Current theories of gratitude suggest that individuals feel grateful when they perceive someone else to be responsible for a desired outcome. However, it is unclear whether individuals must also feel a lack of personal responsibility in order to feel gratitude. This paper provides evidence that in achievement contexts, without the belief that they are responsible for their success, individuals do not experience gratitude, even when they acknowledge the help they have received. In two studies, the more helpful participants thought an experimenter had been, the more grateful they felt, but only if they also spontaneously felt responsible for (Study 1) or were induced to feel responsible for (Study 2) their outcomes. 相似文献
8.
9.
Michael J. Platow Margaret Foddy Toshio Yamagishi Li Lim Aurore Chow 《European journal of social psychology》2012,42(1):30-35
The role that shared group membership plays in decisions to trust others is now well established within social psychology. A close reading of this literature, however, shows that this process is often moderated by other variables. Currently, we examined one potential moderator of this process. In particular, we evaluated the role that common knowledge of a shared social group membership between self and a to‐be‐trusted stranger provides as a basis for trusting this stranger. This common knowledge emerges when the truster knows the group membership of the to‐be‐trusted other, and believes that this other also knows the group membership of the truster. In two experiments, using pre‐existing and minimal groups, we show that people are more likely to trust an in‐group member over an out‐group member under conditions of common group‐membership knowledge rather than private group‐membership knowledge (i.e. other does not know truster's group), even when they could choose not to trust anyone. The manner in which these data add to current understandings of group‐based trust in strangers is discussed. Copyright © 2011 John Wiley & Sons, Ltd. 相似文献
10.
Structural equation models are increasingly used as a modeling tool for multivariate time series data in the social and behavioral
sciences. Standard error estimators of SEM models, originally developed for independent data, require modifications to accommodate
the fact that time series data are inherently dependent. In this article, we extend a sandwich-type standard error estimator
of independent data to multivariate time series data. One required element of this estimator is the asymptotic covariance
matrix of concurrent and lagged correlations among manifest variables, whose closed-form expression has not been presented
in the literature. The performance of the adapted sandwich-type standard error estimator is evaluated using a simulation study
and further illustrated using an empirical example. 相似文献