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141.
It is shown how geometrically changing projections of objects which move and/or change their shape carry no specific information about form and three-dimensional motion. How, then, does the visual apparatus produce specific percepts from such non-specific changing stimuli? By applying an analogue computer technique, changing projections of artificial objects are generated on a CRT screen. These projections are fed into the eye by means of an optical device where they form a continuously changing solid angle of homogeneous light. The main conclusion is that it is a principle of perceptual three-dimensionality which gives specificity to the percepts. Preliminary statements of principles for prediction of perceived motion in depth from a given change in proximal stimulus are presented. 相似文献
142.
Self-observations of cognitions during episodes of anxiety were examined in 38 patients with generalized anxiety disorder and 36 patients with panic disorder. Two independent observers who where blind to the diagnoses categorised the cognitions. The inter-rater reliability was high (mean kappa 0.82). The GAD-patients had significantly more cognitions in the following categories: interpersonal confrontation, competence, acceptance, concern about others and worry over minor matters, while the PD-patients had significantly more cognitions in the physical catastrophe category. Furthermore, GAD-patients with a comorbidity of social phobia reported more cognitions regarding social embarrassment than did GAD-patients with other or no (axis-I) comorbidity. The results of this study support the cognitive theory regarding the cognitive specificity of anxiety disorders. The implications of these results are discussed, along with the issues of reliability and validity of the instrument used. 相似文献
143.
Gerhard Andersson Raghad Bakhsh Linda Johansson Viktor Kaldo Per Carlbring 《Cyberpsychology & behavior》2005,8(1):32-38
Cognitive mechanisms have been proposed to play an important role in tinnitus. In the present study, tinnitus participants were administered an emotional Stroop test via the Internet, incorporating words related to tinnitus concerns. In line with previous research using this Web-based version of the emotional Stroop test, faster color naming was demonstrated for concern-relevant words relative to neutral words. The present results thus provided support for a role for cognitive factors that are important for the understanding of tinnitus. However, future research is warranted in order to clarify the precise mechanisms involved in tinnitusrelated Stroop effects. 相似文献
144.
Ingvar Johansson 《Journal for General Philosophy of Science》2017,48(1):59-69
The notion of truthlikeness (verisimilitude, approximate truth), coined by Karl Popper, has very much fallen into oblivion, but the paper defends it. It can be regarded in two different ways. Either as a notion that is meaningful only if some formal measure of degree of truthlikeness can be constructed; or as a merely non-formal comparative notion that nonetheless has important functions to fulfill. It is the latter notion that is defended; it is claimed that such a notion is needed for both a reasonable backward-looking and a reasonable forward-looking view of science. On the one hand, it is needed in order to make sense of the history of science as containing a development; on the other, it is needed in order to understand present-day sciences as containing knowledge-seeking activities. The defense of truthlikeness requires also a defense of two other notions: quasi-comparisons and regulative ideas, which is supplied in this paper as well. 相似文献
145.
Frida Hylander Maria Johansson Daiva Daukantaitė Kai Ruggeri 《Anxiety, stress, and coping》2017,30(4):365-378
Background and objectives: The YOMI program is a psychoeducational training and physical practice-based program that bridges knowledge from evidence-based psychotherapy with the practice of mindfulness and yin yoga. It consists of 10 content-specific sessions and does not include home assignments. The primary purpose of this randomized controlled trial is to evaluate the effects of the five-week YOMI program on perceived stress, worry and mindfulness in a non-clinical sample.Design and method: In this randomized controlled trial participants were assigned to two groups. Group 1 participated in the five-week intervention twice a week while Group 2 was assigned to a waiting-list condition and participated in the intervention after Group 1. All measures were administered through self-report questionnaires, conducted via a web-based program.Results and conclusions: The results of the study indicated significant effects of the YOMI program on decreasing stress and worry, and increasing mindfulness. Notably these changes were still present at five-week follow up. Consistent with the hypotheses, results suggested that the YOMI program established a group setting where individuals learned to use tools and methods to facilitate better self-directed practice. The study shows moderate to large effect sizes. 相似文献
146.
Jens Johansson 《Ethical Theory and Moral Practice》2009,12(3):247-256
Chris Heathwood has recently put forward a novel and ingenious argument against the view that intrinsic value is analyzable
in terms of fitting attitudes. According to Heathwood, this view holds water only if the related but distinct concept of welfare—intrinsic
value for a person—can be analyzed in terms of fitting attitudes too. Moreover, he argues against such an analysis of welfare by appealing to
the rationality of our bias towards the future. In this paper, I argue that so long as we keep the tenses and the intrinsic/extrinsic
distinction right, the fitting-attitudes analysis of welfare can be shown to survive Heathwood’s criticism.
相似文献
Jens JohanssonEmail: Email: |
147.
Different schema-based expectations for competing brands can produce shifting evaluative standards in consumers' relative ratings of these brands. This shift in standards differentially affects objective (number-based) and subjective (word-based) rating scales. Several studies support the proposition that a brand rated as objectively inferior to another can be subjectively perceived as equivalent to—or even better than—the same brand. Such anomalous response inconsistency originates in consumers' recourse to different expectations for the competing brands and their automatic adjustment of expectations for the inferior brand when responding to subjective measures. The implicit relaxing of evaluative standards for the objectively dominated brand leads to an unconscious upward bias in its subjective ratings. The effect is moderated by consumer expertise and is asymmetric—it is not accompanied by an escalation of evaluative standards for objectively dominating brands. 相似文献
148.
Reactions to third-party inequality were investigated in three experiments. In Experiment 1, 52 undergraduates allocated money between themselves and two others. Preferences for equal and unequal distributions were also rated. The results show that people are averse to inequalities between themselves and others, and to inequalities between others. Post-experimental ratings indicate that egocentric equality, third-party equality, and max–min preferences are important motives. The findings were replicated in Experiment 2, where 74 undergraduates allocated compensation for a previously conducted task, and in Experiment 3, where 112 participants rated preferences. In these experiments random determination of rewards to third parties altered participants’ behavior and preferences. The results indicated that random determination decreases the importance of all fairness motives while increasing the importance of monetary payoff. While people still care about economic equality under these conditions, contextual factors, such as perceived responsibility for unfair outcomes, seem to alter the impact of fairness. 相似文献
149.
Carl Martin Allwood Pr Anders Granhag Marcus Johansson 《Applied cognitive psychology》2003,17(5):545-561
This study investigated to what extent, and under what circumstances, pair collaboration influences the realism in eyewitness confidence in event memory. The participants first saw a short film clip and then confidence rated their answers to questions on its content. A condition (the Individual–Pair condition) where individual effort preceded pair collaboration showed better calibration compared with a condition (the Simple Pair condition) where no individual effort took place. Furthermore, within the Individual–Pair condition, better calibration, and lower overconfidence, were found in the pair phase compared with the individual phase. The eyewitnesses in the Individual–Pair condition made more realistic judgements of the total number of questions answered correctly. In a control experiment no effect on realism in confidence was found when individuals performed the same task twice. The improved realism in the Individual–Pair condition may partly be explained in terms of the increased accuracy and lowered confidence found for such items where the pair members' had given different answers in the individual phase, and by a risky shift effect for such items where they had given the same answer. Copyright © 2003 John Wiley & Sons, Ltd. 相似文献
150.
Jacoby's white noise task and an explicit recognition task were used to investigate whether individuals with eating disorders demonstrate implicit memory bias and explicit memory bias, respectively, for information related to eating and body appearance. Included were 33 women with eating disorders (seven with anorexia nervosa and 26 with bulimia nervosa), 29 with nonclinical eating disorder-related concerns, and 36 healthy controls. Results showed partial support for implicit memory bias but no support for explicit memory bias. These findings suggest that eating disorders may be characterized by relative initial automatic bias for eating disorder-relevant information but not by bias at later stages of information processing. However, previous studies have demonstrated explicit memory bias in eating disorders, which is inconsistent with this interpretation. Future research is required to clarify the precise cognitive biases associated with eating disorders. 相似文献