The Assignment of Absolute and Relative Depth in Constructing a 3-D Mental Model from Viewed Orthographic Displays

Perception ◽  
1997 ◽  
Vol 26 (1_suppl) ◽  
pp. 178-178
Author(s):  
S T Huang ◽  
G C-W Shyi

Constructing the 3-D mental structure from viewed 2-D orthographic displays may require establishing both the relative depth relation (RD) between adjacent areas in the orthographic displays and the exact magnitude of absolute depth (AD) for a given area. We examined the processes of depth assignment involved in 3-D model construction by asking subjects to mentally imagine the 3-D object portrayed by a pair of orthographic projections, and then choose among four alternative isometrics the one that matched the imagined 3-D model. One alternative corresponded to the previously shown orthographic views (ie, target). The other alternatives were distractors that differed from the target in terms of RD, AD, or both. Results from four experiments show that (a) when subjects mistook a distractor for target, they were more likely to misidentify the distractor sharing the same RD with target but with different AD, than to misidentify the distractor sharing the same AD but with different RD; (b) subjects could shorten their solution time by 40% without greatly compromising their performances when times available for imagining 3-D models were reduced in proportion to those consumed in a self-pacing condition. The implications of these results are discussed in terms of a model in which an observer may try to decide the relative depth prior to figuring out the exact absolute depth, although it is necessary to consider both aspects of depth assignment in the construction of 3-D mental models.

2018 ◽  
Vol 16 (1) ◽  
pp. 97-127 ◽  
Author(s):  
Henri de Jongste

Abstract This paper investigates how a mental-model theory of communication can explain differences in humorous texts and how aesthetic criteria to evaluate humour are dependent on the way mental models are exploited. Humour is defined as the deliberate manipulation by speakers of their private mental models of situations in order to create public mental models which contain one or more incongruities. Recipients can re-construct this manipulation process and thereby evaluate its nature and its quality. Humorous texts can be distinguished in terms of ownership of the manipulated mental model, the relationship between the speakers’ private and their public (humorous) mental model, as well as the speed required in the humorous mental model construction. Possible aesthetic criteria are the quality of the mental model manipulation, the pressure under which the humorously manipulated mental models have been constructed and the quality of the presentation of humorous mental models.


2011 ◽  
Vol 16 (3) ◽  
pp. 481-510 ◽  
Author(s):  
Nazli Turan ◽  
Catherine H. Tinsley ◽  
Laurie R. Weingart ◽  
Soroush Aslani

AbstractWhen involved in disputes, people’s stereotypes about one another and the situation can influence their attributions of motives and effectiveness at resolving the dispute. Stereotypes may be of particular concern when disputing parties have little knowledge about the individual across the table. In this study, we examined how respondents from different cultures evaluated the economic and relational goals of two disputing merchants - one from the West and the other from the Middle East. We tested the extent to which respondents’ expectations of the targets’ goals were driven by: 1) cultural information about each disputant (whether the merchant-disputant comes from the West or from the Middle East) and 2) the respondent’s own culturally-based mental model for approaches to resolving work-related disputes. We found very little evidence of cultural stereotyping in that respondents views of the Target Merchants’ goals were largely independent of the said culture of the Target Merchant. We did however find strong evidence that respondents from the United States, Turkey and Qatar hold different mental models about the goals a party has when resolving a work-related dispute. In particular, US respondents had a more variable-sum orientation than the other cultural groups, especially Qataris, whose mental model evidenced a fixed pie assumption regarding economic and relational goals. For example, Qataris and Turks viewed a goal of Maximizing one’s Own Gain as impeding a goal of Maximizing the Other Party’s Gain. Similarly, Qataris viewed Defending Honor as incompatible to the goals of Relationship Building and Giving Face, whereas Americans and Turks did not hold such a view. These differences, based on the country of the respondent, are discussed in detail.


EDUSAINS ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 156-162
Author(s):  
Rian Priyadi ◽  
Markus Diantoro ◽  
Parno Parno

PENGEMBANGAN INSTRUMEN MODEL MENTAL PADA TOPIK SUHU DAN KALORAbstrakKami telah mengembangkan tes sebagai analisis model mental pada materi suhu dan kalor. Penelitian pengembangan ini didasarkan pada pentingnya mengetahui tingkatan model mental siswa. Model mental merupakan representasi internal siswa dalam memahami sebuah konsep.  Penelitian ini menggunakan model pengembangan 4-D. Produk yang dihasilkan merupakan instrumen analisis model mental berupa soal terbuka.  Selanjutnya, instrumen tes model mental diujicobakan kepada responden (N=90) untuk mengukur validitas dan reliabilitas. Tes yang telah dikembangkan terdiri dari 8 soal dengan reliabilitas sebesar 0,667. Berdasarkan analisis data, instrumen tes model mental pada materi suhu dan kalor layak digunakan sebagai instrumen penilaian. AbstractWe have developed test inventory as an analysis of mental models on heat and temperature topics. This development research based on the importance of knowing the level of students' mental models. The mental models are a student’s internal representation of understanding a concept. This study uses a 4-D model. The product being produced is a mental model analysis consists of open-ended questions. Furthermore, mental models test were tested on respondents (N = 90) to measure the validity and reliability. The test that has been developed consists of 8 questions with a value of reliability is 0.667. Based on data analysis, the test of mental models on heat and temperature topics is feasible to use as an assessment instrument. 


2013 ◽  
Vol 8 (4) ◽  
pp. 129
Author(s):  
Antonio DeRosa

Objectives – To explore the construction of mental models as a dynamic process and how users understand a consumer health information system, MedlinePlus, during a search session. Design – Face-to-face interview. Setting – Large university. Subjects – A total of 38 undergraduate students participated in the study. All majoring in non-medical fields, such as art history, psychology, business, and communication studies. Methods – Participants were randomized into two groups: the simple task group and the complex task group. Simple task group members were asked to perform 12 simple tasks while the complex group members performed three more-involved tasks. Simple tasks were defined as succinct questions with finite answers while complex tasks were open-ended and required more cognitive activity and synthesizing on the part of the individual. Participants in both groups were then given four simple tasks and two complex tasks to perform. Data was derived by video recording search sessions with individuals and interview-like questions for the tasks performed. Participants were given a brief introduction to the search session design and sessions took place in a private lab. Since the aim of the study was to track participants’ mental modeling processes over time, coding of data was caught at three different times throughout the search sessions: T1 (MM1) after five minutes of free exploration, T2 (MM2) after the first search session, and T3 (MM3) after the second search session. Main Results – The author discusses the demographic specifics of the population participating in the study. Although participants were split into two groups, the results were combined to be more meaningful. Out of the 38 participants, 20 were female and 18 were male with ages ranging from 18 to 22. They had, on average, 10 years of computer experience and their average spatial ability score was 12.71. Also on average, they spent about 20 minutes completing the first search session and 12 minutes completing the second search session. The results show that participant-developed mental models of the MedlinePlus web space can be clustered into the following five theoretical components (this information is quantified in tables throughout the paper): system, content, information organization, interface, and procedural knowledge. Conclusion – The study allowed participants to articulate their mental models and representations while conducting predefined searches during private sessions using MedlinePlus. The study also illustrates how users’ mental models of a system developed during interactions with an online system, on a theoretical level. Little is actually known about how mental models are developed when users interact with an information system. The study serves to explore this arena and reveals that the mental model construction involves changes and developments in three parallel dimensions: cognition, emotion, and behaviour. Also, these dimensions are accompanied by three mental activities: assimilating new concepts, phasing out previously perceived concepts, and modifying existing concepts. The mental model construction process could be a useful tool to build user models and make better design decisions for information systems.


1975 ◽  
Vol 26 ◽  
pp. 395-407
Author(s):  
S. Henriksen

The first question to be answered, in seeking coordinate systems for geodynamics, is: what is geodynamics? The answer is, of course, that geodynamics is that part of geophysics which is concerned with movements of the Earth, as opposed to geostatics which is the physics of the stationary Earth. But as far as we know, there is no stationary Earth – epur sic monere. So geodynamics is actually coextensive with geophysics, and coordinate systems suitable for the one should be suitable for the other. At the present time, there are not many coordinate systems, if any, that can be identified with a static Earth. Certainly the only coordinate of aeronomic (atmospheric) interest is the height, and this is usually either as geodynamic height or as pressure. In oceanology, the most important coordinate is depth, and this, like heights in the atmosphere, is expressed as metric depth from mean sea level, as geodynamic depth, or as pressure. Only for the earth do we find “static” systems in use, ana even here there is real question as to whether the systems are dynamic or static. So it would seem that our answer to the question, of what kind, of coordinate systems are we seeking, must be that we are looking for the same systems as are used in geophysics, and these systems are dynamic in nature already – that is, their definition involvestime.


Author(s):  
Stefan Krause ◽  
Markus Appel

Abstract. Two experiments examined the influence of stories on recipients’ self-perceptions. Extending prior theory and research, our focus was on assimilation effects (i.e., changes in self-perception in line with a protagonist’s traits) as well as on contrast effects (i.e., changes in self-perception in contrast to a protagonist’s traits). In Experiment 1 ( N = 113), implicit and explicit conscientiousness were assessed after participants read a story about either a diligent or a negligent student. Moderation analyses showed that highly transported participants and participants with lower counterarguing scores assimilate the depicted traits of a story protagonist, as indicated by explicit, self-reported conscientiousness ratings. Participants, who were more critical toward a story (i.e., higher counterarguing) and with a lower degree of transportation, showed contrast effects. In Experiment 2 ( N = 103), we manipulated transportation and counterarguing, but we could not identify an effect on participants’ self-ascribed level of conscientiousness. A mini meta-analysis across both experiments revealed significant positive overall associations between transportation and counterarguing on the one hand and story-consistent self-reported conscientiousness on the other hand.


2005 ◽  
Vol 44 (03) ◽  
pp. 107-117
Author(s):  
R. G. Meyer ◽  
W. Herr ◽  
A. Helisch ◽  
P. Bartenstein ◽  
I. Buchmann

SummaryThe prognosis of patients with acute myeloid leukaemia (AML) has improved considerably by introduction of aggressive consolidation chemotherapy and haematopoietic stem cell transplantation (SCT). Nevertheless, only 20-30% of patients with AML achieve long-term diseasefree survival after SCT. The most common cause of treatment failure is relapse. Additionally, mortality rates are significantly increased by therapy-related causes such as toxicity of chemotherapy and complications of SCT. Including radioimmunotherapies in the treatment of AML and myelodyplastic syndrome (MDS) allows for the achievement of a pronounced antileukaemic effect for the reduction of relapse rates on the one hand. On the other hand, no increase of acute toxicity and later complications should be induced. These effects are important for the primary reduction of tumour cells as well as for the myeloablative conditioning before SCT.This paper provides a systematic and critical review of the currently used radionuclides and immunoconjugates for the treatment of AML and MDS and summarizes the literature on primary tumour cell reductive radioimmunotherapies on the one hand and conditioning radioimmunotherapies before SCT on the other hand.


2017 ◽  
Vol 47 (188) ◽  
pp. 487-494
Author(s):  
Daniel Mullis

In recent years, political and social conditions have changed dramatically. Many analyses help to capture these dynamics. However, they produce political pessimism: on the one hand there is the image of regression and on the other, a direct link is made between socio-economic decline and the rise of the far-right. To counter these aspects, this article argues that current political events are to be understood less as ‘regression’ but rather as a moment of movement and the return of deep political struggles. Referring to Jacques Ranciere’s political thought, the current conditions can be captured as the ‘end of post-democracy’. This approach changes the perspective on current social dynamics in a productive way. It allows for an emphasis on movement and the recognition of the windows of opportunity for emancipatory struggles.


1996 ◽  
pp. 13-23
Author(s):  
Mykhailo Babiy

Political ideological pluralism, religious diversity are characteristic features of modern Ukrainian society. On the one hand, multiculturalism, socio-political, religious differentiation of the latter appear as important characteristics of its democracy, as a practical expression of freedom, on the other - as a factor that led to the deconsocialization of society, gave rise to "nodal points" of tension, confrontational processes, in particular, in political and religious spheres.


2003 ◽  
pp. 15-26
Author(s):  
P. Wynarczyk
Keyword(s):  
The Core ◽  

Two aspects of Schumpeter' legacy are analyzed in the article. On the one hand, he can be viewed as the custodian of the neoclassical harvest supplementing to its stock of inherited knowledge. On the other hand, the innovative character of his works is emphasized that allows to consider him a proponent of hetherodoxy. It is stressed that Schumpeter's revolutionary challenge can lead to radical changes in modern economics.


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