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141.
The current research investigates what motivates people to engage in normative versus nonnormative action. Prior research has shown that different emotions lead to different types of action. We argue that these differing emotions are determined by a more basic characteristic, namely, implicit theories about whether groups and the world in general can change. We hypothesized that incremental theories (beliefs that groups/the world can change) would predict normative action, and entity theories (beliefs that groups/the world cannot change) as well as group identification would predict nonnormative action. We conducted a pilot in the context of protests against a government plan to relocate Bedouin villages in Israel and a main study during the Israeli social protests of the middle class. Results revealed three distinct pathways to collective action. First, incremental theories about the world predicted hope, which predicted normative action. Second, incremental theories about groups and group identification predicted anger, which also predicted normative collective action. Lastly, entity theories about groups predicted nonnormative collective action through hatred, but only for participants who were highly identified with the group. In sum, people who believed in the possibility of change supported normative action, whereas those who believed change was not possible supported nonnormative action.  相似文献   
142.
In this article, I argue that a growing body of evidence shows that concepts are amodal and I provide a novel interpretation of the body of evidence that was taken to support neo-empiricist theories of concepts: the offloading hypothesis in the 1990s and 2000s.  相似文献   
143.
144.
The aim of this study was to examine the effect of body and head tilts on the haptic oblique effect. This effect reflects the more accurate processing of vertical and horizontal orientations, relative to oblique orientations. Body or head tilts lead to a mismatch between egocentric and gravitational axes and indicate whether the haptic oblique effect is defined in an egocentric or a gravitational reference frame. The ability to reproduce principal (vertical and horizontal) and oblique orientations was studied in upright and tilted postures. Moreover, by controlling the deviation of the haptic subjective vertical provoked by postural tilt, the possible role of a subjective gravitational reference frame was tested. Results showed that the haptic reproduction of orientations was strongly affected by both the position of the body (Experiment 1) and the position of the head (Experiment 2). In particular, the classical haptic oblique effect observed in the upright posture disappeared in tilted conditions, mainly because of a decrease in the accuracy of the vertical and horizontal settings. The subjective vertical appeared to be the orientation reproduced the most accurately. These results suggest that the haptic oblique effect is not purely gravitationally or egocentrically defined but, rather, depends on a subjective gravitational reference frame that is tilted in a direction opposite to that of the head in tilted postures (Experiment 3).  相似文献   
145.
People with social phobia report anticipatory and retrospective judgments about social situations that appear consistent with a negative interpretative bias. However, it is not at all clear that biased interpretative inferences are made "on-line;" that is, at the time that ambiguous information is first encountered. In a previous study, volunteers who were anxious about interviews were found to lack the positive on-line inferential bias that was characteristic of nonanxious controls but also failed to show a bias favoring threatening inferences (C. R. Hirsch & A. Mathews, 1997). This finding was confirmed in the present study, in which social phobic patients showed no evidence of making on-line emotional inferences, in contrast with socially nonanxious controls who were again clearly biased in favor of positive inferences. The authors concluded that nonanxious individuals are characterized by a benign on-line inferential bias, but that this is impaired in people with social phobia.  相似文献   
146.
A sample of kindergarten and first-grade children was studied in a research center and at school to determine the extent to which family communication mediated their comprehension of television, as well as a series of cognitive skills necessary for such comprehension. Separate analyses were conducted for boys and girls, and results indicated that certain styles of family mediation facilitated comprehension more effectively for boys than for girls. Additionally, differential effects of two styles of discipline were found for each sex.This research was funded by a grant to Jerome and Dorothy Singer from the John D. and Catherine T. MacArthur Foundation entitled Television and Family Living Patterns.  相似文献   
147.
Testing individual animals from a heterogenic population of Drosophila melanogaster, we demonstrate conditioning of the proboscis extension reflex. The presentation of paired (conditioning) stimuli produced (a) an increase in the average number of conditioned responses over trials, (b) measured differences in performance levels among individual subjects, and (c) a sex difference, with more males conditioned than females, and those that did did so more quickly. The presentation of unpaired (control) stimuli produced significantly lower average levels of acquisition responding and a change in the distribution of individual response patterns. Neither central excitatory state nor sensitization induced by the conditioned or unconditioned stimuli directly affected the conditioned response, whereas unconditioned stimulus preexposure adversely affected performance levels. Presenting the unpaired (extinction) stimuli after conditioning produced less of a decline in responding than did an extinction procedure with removal of the unconditioned stimulus. With the ability to identify individual differences in acquisition and extinction patterns, and given the relatively large number of individuals that can be tested simultaneously on the automated stimulation apparatus, it is now possible to make precise behavioral measurements on samples large enough for the behavior-genetic analysis of D. melanogaster with conditioning as the phenotype.  相似文献   
148.
The paper deals with experience gained in the town of Leipzig in the course of the implementation of the regionalized organisation of psychiatric care. The idea behind the organisational structure is that of a complete psychiatric system of treatment, covering hospitalised, partially hospitalised, and out-patient treatment, supported by ancillary services, to provide continued care. The organisational structure has proved effective for basic psychiatric care in a large town.  相似文献   
149.
A pocket computer is described that can be used by subjects to self-administer cognitive tests in field situations. Two cognitive tests, a vigilance and an encoding task, were developed for this computer and used to test cognitive performance during a 30-day military field exercise.  相似文献   
150.
Successful bidirectional selective breeding of Drosophila melanogaster for excitatory conditionability is reported, using the reliable measures of individual differences (first described by Holliday & Hirsch, 1984, 1986a, 1986b) to test 1,324 animals. Bidirectional selective breeding for good and poor conditioning has produced, respectively, one population in which the percentage of animals showing good conditioning has increased over 25 generations from 19% to 77% and another in which it has decreased over 23 generations to 0%-4%. No increase in a measure of sensitization induced by an unconditioned stimulus (the central excitatory state) accompanied the increase in the percentage of good conditioners in the population selected for good conditioning, whose level of conditioned responding exceeds that of the sensitization measure.  相似文献   
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