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21.
Schwarz W Ischebeck A 《Journal of experimental psychology. Human perception and performance》2003,29(3):507-522
Humans show systematic congruency effects due to irrelevant variations of the numerical value or the physical size of digits in judgments about either of these 2 attributes alone. According to influential models (e.g., J. Tzelgov, J. Meyer, & A. Henik, 1992), these effects are characterized by genuine asymmetries of size and number processing not accounted for by simple relative speed considerations, whereas some recent work (e.g., A. Pansky & D. Algom, 1999) partly challenges this view. This article presents 2 qualitative gradient-based predictions made by relative speed models and a diffusion-based implementation of the relative speed view to quantitatively account for response times and error rates in comparative judgments of digits. The results of 2 experiments using a completely task-symmetric design are in accord with these detailed predictions; they are also consistent with the view that both number and size are converted into magnitude representations of similar structure. 相似文献
22.
Hindsight bias is the tendency of people to falsely believe that they would have correctly predicted the outcome of an event once it is known. The present paper addresses the ongoing debate as to whether the hindsight bias is due to memory impairment or biased reconstruction. The memory impairment approach maintains that outcome information alters the memory trace of the initial judgement, whereas the biased reconstruction approach assumes that people who have forgotten their initial judgements are forced to guess and, in the presence of outcome information, are likely to use this information as an anchor. Whereas the latter approach emphasises the role of meta-cognitive considerations, meta-cognitions are not included in the memory impairment explanation. Two experiments show that the biased reconstruction approach provides a better explanation for empirical findings in hindsight bias research than does the memory impairment explanation. 相似文献
23.
Lohmann G 《Ethical perspectives / Catholic University of Leuven ; European Centre for Christian Ethics》2003,10(3-4):196-203
In Germany the question whether to uphold or repeal the judicial prohibition on Pre-implantation Genetic Diagnosis (PGD) is being debated from quite different standpoints. This paper differentiates the major arguments according to their reasons as a) moral, b) evaluative (i.e. cultural/religious), and c) legal. The arguments for and against PGD can be divided by content into three groups: arguments relating to the status of the embryo, focusing on individual actions in the implementation of PGD, and relating to the foreseeable or probable consequences of PGD. In Germany, from a legal perspective, the status of the embryo does not permit the intervention of PGD; from a purely moral perspective, a prohibition on PGD does not appear defensible. It remains an open question, however, whether the moral argument permitting PGD should be restricted for evaluative (cultural) reasons. The paper discusses the species-ethical reasons, for which Jurgen Habermas sees worrisome consequences in the wake of PGD to the extent that we comprehend it as the forerunner of a 'positive eugenics'. It would so disrupt the natural preconditions of our universal morality. The question of whether to prohibit or allow PGD is not merely a question of simple moral and/or legal arguments, but demands a choice between evaluative, moral and (still to be specified) species-ethical arguments, and the question remains open. 相似文献
24.
Georg H. Eifert Michael J. Zvolensky John T. Sorrell Derek R. Hopko C. W. Lejuez 《Journal of psychopathology and behavioral assessment》1999,21(4):293-305
The purpose of this study was to examine the extent to which anxiety-related individual difference variables predict anxious responding when individuals experience aversive bodily sensations. Thus, we explore several psychological and behavioral predictors of response to a single 25-sec inhalation of 20% carbon dioxide-enriched air in 70 nonclinical participants. Predictor variables included anxiety sensitivity, suffocation fear, heart-focused anxiety, and breath-holding duration. Multiple regression analyses indicated that only anxiety sensitivity significantly predicted postchallenge panic symptoms, whereas both anxiety sensitivity and suffocation fear predicted postchallenge anxiety. These data are in accord with current models of panic disorder that emphasize the role of fear of fear in producing heightened anxiety and panic symptoms and help clarify specific predictors of anxiety-related responding to biological challenge. 相似文献
25.
Spatial reference in multiple object tracking is available from configurations of dynamic objects and static reference objects. In three experiments, we studied the use of spatial reference in tracking and in relocating targets after abrupt scene rotations. Observers tracked 1, 2, 3, 4, and 6 targets in 3D scenes, in which white balls moved on a square floor plane. The floor plane was either visible thus providing static spatial reference or it was invisible. Without scene rotations, the configuration of dynamic objects provided sufficient spatial reference and static spatial reference was not advantageous. In contrast, with abrupt scene rotations of 20°, static spatial reference supported in relocating targets. A wireframe floor plane lacking local visual detail was as effective as a checkerboard. Individually colored geometric forms as static reference objects provided no additional benefit either, even if targets were centered on these forms at the abrupt scene rotation. Individualizing the dynamic objects themselves by color for a brief interval around the abrupt scene rotation, however, did improve performance. We conclude that attentional tracking of moving targets proceeds within dynamic configurations but detached from static local background. 相似文献
26.
Wolfgang Schwarz 《Philosophical Studies》2012,159(2):219-239
I defend a general rule for updating beliefs that takes into account both the impact of new evidence and changes in the subject??s location. The rule combines standard conditioning with a ??shifting?? operation that moves the center of each doxastic possibility forward to the next point where information arrives. I show that well-known arguments for conditioning lead to this combination when centered information is taken into account. I also discuss how my proposal relates to other recent proposals, what results it delivers for puzzles like the Sleeping Beauty problem, and whether there are diachronic constraints on rational belief at all. 相似文献
27.
28.
Keeping aware of the locations of objects while one is moving requires the updating of spatial representations. As long as the objects are visible, attentional tracking is sufficient, but knowing where objects out of view went in relation to one's own body involves an updating of spatial working memory. Here, multiple object tracking was employed to study spatial updating and its neural correlates. In a dynamic 3D-scene, targets moved among visually indistinguishable distractors. The targets and distractors either stayed visible during continuous viewpoint changes or they turned invisible. The parametric variation of tracking load revealed load-dependent activations of the intraparietal sulcus, the superior parietal lobule, and the lateral occipital cortex in response to the attentive tracking task. Viewpoint changes with invisible objects that demanded retention and updating produced load-dependent activation only in the precuneus in line with its presumed involvement in updating spatial working memory. 相似文献
29.
S Taubner A Buchheim R Rudyk H Kächele G Bruns 《American journal of psychoanalysis》2012,72(3):269-286
One of the counterarguments against empirical research in psychoanalysis is that research negatively influences the treatment situation. In this paper, the impact of a neurobiological study on psychoanalytically oriented treatments is presented from three different perspectives: patients' views, a study group of participating psychoanalysts and a clinical case example. Twenty chronically depressed patients, 20 healthy controls and 16 psychoanalysts participated in the project on research. Results show a clear influence of the neurobiological study on the course of treatments. Patients consistently reported that study participation had a positive impact on their treatment experiences. However, study participation was conflictual for the psychoanalysts and forced them to carefully reflect on their unconscious and conscious involvement to establish a psychoanalytic stance independent from empirical research. 相似文献
30.
Ernst R. Schwarz Kiran J. Philip Sinan A. Simsir Lawrence Czer Alfredo Trento Stuart G. Finder Laurent A. Cleenewerck 《Journal of religion and health》2011,50(4):872-879
Deciding who should receive maximal technological treatment options and who should not represents an ethical, moral, psychological
and medico-legal challenge for health care providers. Especially in patients with chronic heart failure, the ethical and medico-legal
issues associated with providing maximal possible care or withholding the same are coming to the forefront. Procedures, such
as cardiac transplantation, have strict criteria for adequate candidacy. These criteria for subsequent listing are based on
clinical outcome data but also reflect the reality of organ shortage. Lack of compliance and non-adherence to lifestyle changes
represent relative contraindications to heart transplant candidacy. Mechanical circulatory support therapy using ventricular
assist devices is becoming a more prominent therapeutic option for patients with end-stage heart failure who are not candidates
for transplantation, which also requires strict criteria to enable beneficial outcome for the patient. Physicians need to
critically reflect that in many cases, the patient’s best interest might not always mean pursuing maximal technological options
available. This article reflects on the multitude of critical issues that health care providers have to face while caring
for patients with end-stage heart failure. 相似文献