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161.
In this article we present the bases for a computational theory of the cognitive processes underlying human communication. The core of the article is devoted to the analysis of the phases in which the process of comprehension of a communicative act can be logically divided: (1) literal meaning, where the reconstruction of the mental states literally expressed by the actor takes place: (2) speaker's meaning, where the partner reconstructs the communicative intentions of the actor; (3) communicative effect, where the partner possibly modifies his own beliefs and intentions; (4) reaction, where the intentions for the generation of the response are produced; and (5) response, where an overt response is constructed. The model appears to be compatible with relevant facts about human behavior. Our hypothesis is that, through communication, an actor tries to exploit the motivational structures of a partner so that the desired goal is generated. A second point is that social behavior requires that cooperation be maintained at some level. In the case of communication, cooperation is, in general, pursued even when the partner does not adhere to the actor's goals, and therefore no cooperation occurs at the behavioral level. This important distinction is reflected in the two kinds of game we introduce to account for communication. The main concept implied in communication is that two agents overtly reach a situation of shared mental states. Our model deals with sharedness through two primitives: shared beliefs and communicative intentions.  相似文献   
162.
The abilities of 7.5-month-old infants to recall the location of hidden objects after delays averaging 90 seconds were investigated in three experiments. Various kinds of events were introduced during the delays in order to examine the stability of early location memory. Recall, as shown by reaching towards the correct location, was most clearly found when the infants were allowed either to remain seated facing the hiding locations (Expt 1) or were turned around and immediately re-seated (Expt 2) during the delays. In both experiments, the infants’ attention was diverted from the hiding places, but during all or most of the delay the infants were facing the locations. Recall was dampened when infants were removed from the immediate location of the hiding and engaged in other activities such as looking at a picture during the delay (Expt 3). Further analyses indicated an effect for age that coincides with other research on location memory: evidence for recall was more clearly found for the older, but not the younger, 7-month-olds.  相似文献   
163.
Science is not taken for granted any longer. Society, politics and the media pose critical questions tending to censorship or at least control of science. How does science respond? It cannot exist and develop without freedom, but this does not mean freedom to amass knowledge and apply technological applications at any price and without restrictions. Science should be autonomous, but is not value-free. A distintion is made between external and internal social/ethical problems. The former refer to questions of the social/ethical context and consequences of scientific research, and the latter to the rules of ‘good practice’ and scientific integrity. The role of academies of science, and of associations of such academies (e.g. All European Academies (ALLEA)) in developing codes of good scientific practice and fostering a proper sense of scientific values and standards is further discussed.  相似文献   
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Although it is assumed both by healthcare professionals as well as by public opinion that attention deficit hyperactivity disorder (ADHD) is widely overdiagnosed, so far there is little empirical evidence to support this presumption. However, the presented study shows clear evidence for an overdiagnosis of ADHD. Furthermore, the data demonstrate that based on identical symptoms, boys more often receive a diagnosis for ADHD than girls. A false ADHD diagnosis also correlates with a recommendation for medical and psychotherapeutic treatment. One explanation for misdiagnosis is the fact that therapists in the course of diagnosis, as with other everyday decision-making processes, are influenced by heuristics. The most common heuristics that can lead to misdiagnosis are the representativeness heuristic and the availability heuristic. Such mistakes could be avoided by clearly following diagnostic criteria and the use of structural interviews.  相似文献   
169.
Standard interventions, such as antidepressive medication or psychotherapy, show only medium effect sizes in the reduction of depressive symptomatology. In addition, medication has problematic and not well accepted side-effects therefore it seems reasonable to look for alternative, cost-effective, easily available treatments which show no side-effects. A large number of studies have demonstrated similar neurophysiological effects of sport as antidepressants or psychotherapies but the crucial question remains unanswered: does sport show antidepressive effects by alleviating depressive symptomatology? Some randomized, controlled studies and all available recent meta-analysis addressing this question are reviewed. This review concludes that randomized control trials including sport activities have similar positive effect sizes as psychotherapy or antidepressant studies. The pre-post effects are in the medium to high range. Such a conclusion is jeopardized by a limited number of methodolically sound studies. It is too early to make evidence-based recommendations about the antidepressive effect of sport. Currently, it can only be speculated about moderators and mechanisms mediating outcome.  相似文献   
170.
The mental effects of globalization, the economic crisis and unemployment must not be underestimated. In general they have to be looked upon as a complex system of structural traumatization which is causing severe psychological mental disorders, such as depression. Not only that, a psychotherapist has to pay particular attention to this. More than in physical illnesses the psychotherapist has to be solidly united with the patient, which might also result in political action.  相似文献   
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