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941.
Human spatial encoding of three-dimensional navigable space was studied, using a virtual environment simulation. This allowed subjects to become familiar with a realistic scene by making simulated rotational and translational movements during training. Subsequent tests determined whether subjects could generalize their recognition ability by identifying novel-perspective views and topographic floor plans of the scene. Results from picture recognition tests showed that familiar direction views were most easily recognized, although significant generalization to novel views was observed. Topographic floor plans were also easily identified. In further experiments, novel-view performance diminished when active training was replaced by passive viewing of static images of the scene. However, the ability to make self-initiated movements, as opposed to watching dynamic movie sequences, had no effect on performance. These results suggest that representation of navigable space is view dependent and highlight the importance of spatial-temporal continuity during learning. 相似文献
942.
What object attributes determine canonical views? 总被引:2,自引:0,他引:2
We investigated preferred or canonical views for familiar and three-dimensional nonsense objects using computer-graphics psychophysics. We assessed the canonical views for objects by allowing participants to actively rotate realistically shaded three-dimensional models in real-time. Objects were viewed on a Silicon Graphics workstation and manipulated in virtual space with a three-degree-of-freedom input device. In the first experiment, participants adjusted each object to the viewpoint from which they would take a photograph if they planned to use the object to illustrate a brochure. In the second experiment, participants mentally imaged each object on the basis of the name and then adjusted the object to the viewpoint from which they imagined it. In both experiments, there was a large degree of consistency across participants in terms of the preferred view for a given object. Our results provide new insights on the geometrical, experiential, and functional attributes that determine canonical views under ecological conditions. 相似文献
943.
Studies in Philosophy and Education - 相似文献
944.
This paper presents an interpretation of Husserl's phenomenological epoché or bracketing ( Einklammerung), which makes it possible to compare his position with philosophical programs developed within the framework of modern analytical philosophy. At the same time it asks in what sense Husserl's phenomenology is a form of idealism or exceeds the traditional discussion of idealism versus realism. 相似文献
945.
A general theory of the relationship of binocular visual space to physical space is formulated within a conjoint measurement framework. Psychophysically motivated invariance relations induce various functional equations. Another class of functional equations arises if we additionally assume the validity of a different psychophysical theory that is based on a formula suggested by A. A. Blank. We solve and interpret most of these equations and point out an unsolved problem. The obtained results lead to a measurement-theoretic foundation of the psychophysical assumptions underlying the Luneburg theory of binocular vision. They also contribute to clarifying the relationship between the presented general theory and Blank's approach. Copyright 1999 Academic Press. 相似文献
946.
947.
Petra Weiß Klaus Kessler Bernd Hildebrandt Hans-Jürgen Eikmeyer 《Kognitionswissenschaft》1999,8(3):108-114
Conceptualization in incremental-integrative\hb language processing Summary. Language is a versatile instrument in co-operatively solving a construction task. In order to understand instructions given during such a task, objects have to be identified and the type of action to be performed has to be determined. The experiments presented show that the way in which objects and actions are conceptualized depends on the linguistic and the non-linguistic, visually available context. Both kinds of information are processed incrementally in an integrative way. The impact of relevant factors, such as the specificity of verbs and object namings, object properties such as color, size, location and the dynamically determined class to which the object belongs was studied. Conclusions for models of language understanding and language production are drawn and requirements for a grammatical formalism suitable for incremental and integrative processing are formulated. Zusammenfassung. Sprache ist ein wichtiges Instrument bei der kooperativen Lösung einer Konstruktionsaufgabe. Zum Verstehen von Handlungsanweisungen im Rahmen dieser Aufgabe müssen Objekte identifiziert und die Art der Handlung erkannt werden. Es werden empirische Untersuchungen vorgestellt, die zeigen, daß die Konzeptualisierung der Objekte und Handlungen vom sprachlichen und nichtsprachlichen, visuell verfügbaren Kontext abhängt. Beide Arten von Kontextinformation werden inkrementell und integrativ verarbeitet. Dazu wurde der Einfluß einzelner Faktoren wie die Spezifität von Verben und Objektbezeichnungen, Objekteigenschaften wie Farbe, Größe und Position sowie die dynamisch zugewiesene Objektklasse und die Wortstellung der benutzten Sprache untersucht. Es werden Folgerungen für die Modellierung von beiden Richtungen der Sprachverarbeitung, Rezeption und Produktion, gezogen und Anforderungen an einen Grammatikformalismus zur inkrementell-integrativen Satzverarbeitung dargestellt. 相似文献
948.
Jürgen Dümont 《Journal for General Philosophy of Science》1999,30(2):341-364
Two of Hilary Putnam's model-theoretic arguments against metaphysical realism are examined in detail. One of them is developed
as an extension of a model-theoretic argument against mathematical realism based on considerations concerning the so-called
Skolem-Paradox in set theory. This argument against mathematical realism is also treated explicitly. The article concentrates
on the fine structure of the arguments because most commentators have concentrated on the major premisses of Putnam's argument
and especially on his treatment of metaphysical realism. It is shown that the validity of Putnam's arguments is doubtful and
that realists are by no means forced to accept the theses Putnam ascribes to them. It is concluded that Putnam fails to give
convincing arguments for rejecting mathematical or metaphysical realism. Furthermore, Putnam's internal realism is discussed
critically.
This revised version was published online in August 2006 with corrections to the Cover Date. 相似文献
949.
Henning Schauenburg Manfred Beutel Thomas Bronisch Martin Hautzinger Falk Leichsenring Christian Reimer Ulrich Rüger Isa Sammet Manfred Wolfersdorf 《Psychotherapeut》1999,44(2):127-136
Ohne Zusammenfassung 相似文献
950.
Ohne Zusammenfassung 相似文献