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  Effects of regions on the orientation ability in virtual environments

Schnee, A., Wiener, J., & Mallot, H. (2003). Effects of regions on the orientation ability in virtual environments. Poster presented at 6. Tübinger Wahrnehmungskonferenz (TWK 2003), Tübingen, Germany.

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Datensatz-Permalink: https://hdl.handle.net/11858/00-001M-0000-0013-DD10-9 Versions-Permalink: https://hdl.handle.net/21.11116/0000-0005-7B80-0
Genre: Poster

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 Urheber:
Schnee, A1, 2, Autor           
Wiener, JM, Autor           
Mallot, HA, Autor           
Affiliations:
1Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497797              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794              

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Schlagwörter: -
 Zusammenfassung: Hierarchical theories of human spatial memory propose that places are grouped together in regions that are represented at a higher level in a graph-like representation of
space. In this project we study the dynamics of the formation of spatial memory, with
special focus on the information about regions. At witch particular stage of memory
formation is regional information used in spatial memory, compared to more detailed
information like the exact positions of places within these regions. We hypothesize that
regional information originates very early in the formation of spatial memory. To investigate
this assumption we have created a virtual environment containing 16 objects
of 4 distinct categories (animals, cars,
owers and buildings). The objects were placed
on a regular 4x4 grid within the environment. We created 2 experimental conditions
that diered in the arrangement of the objects. While objects of the same semantic
category were neighboring each other in the regionalized condition, the object positions
were scrambled in the unregionalized condition. Subjects were randomly assigned
to one of the two environments. In successive trials the subjects had to nd objects
in the environment. They were instructed to approach the target-object as directly as
possible. We recorded subjects trajectories and calculated an overshoot-value for all of
the 32 successive trials. The overshoot-value was dened as the quotient of the traveled
distance and the distance of the shortest possible path. By analyzing the overshootvalues
as a function of the trials for both the experimental groups we monitored spatial
learning. Results indicate faster learning in the regionalized environment as compared
to the unregionalized environment. These results support our hypothesis that regional
information is used in spatial memory very early. These regions allow to reduce the
search area in spatial search tasks; as soon as a given landmark can be assigned to a
certain environmental area, one can limit the search for this landmark to this area.

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Sprache(n):
 Datum: 2003-02
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: BibTex Citekey: 2506
 Art des Abschluß: -

Veranstaltung

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Titel: 6. Tübinger Wahrnehmungskonferenz (TWK 2003)
Veranstaltungsort: Tübingen, Germany
Start-/Enddatum: 2003-02-21 - 2003-02-23

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Projektinformation

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Titel: 6. Tübinger Wahrnehmungskonferenz: Sixth Perception Conference at Tübingen, TWK 2003
Genre der Quelle: Konferenzband
 Urheber:
Bülthoff, HH1, Herausgeber           
Gegenfurtner, KR, Herausgeber           
Mallot, HA, Herausgeber           
Ulrich, R, Herausgeber
Wichmann, FA1, Maler           
Affiliations:
1 Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794            
Ort, Verlag, Ausgabe: Kirchentellinsfurt, Germany : Knirsch
Seiten: - Band / Heft: - Artikelnummer: - Start- / Endseite: 172 Identifikator: ISBN: 3-927091-62-6