English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Accuracy of pointing to invisible landmarks in a familiar environment

Sellen, K., van Veen, H., & Bülthoff, H. (1997). Accuracy of pointing to invisible landmarks in a familiar environment. Poster presented at 20th European Conference on Visual Perception (ECVP 1997), Helsinki, Finland.

Item is

Files

show Files

Locators

show
hide
Description:
-

Creators

show
hide
 Creators:
Sellen, K1, 2, Author              
van Veen, HAHC1, 2, Author              
Bülthoff, HH1, 2, Author              
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, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              

Content

show
hide
Free keywords: -
 Abstract: Humans develop a mental representation of their environment that enables them to solve their day-to-day navigation tasks. The nature and quality of this representation can be probed experimentally by studying spatial tasks like distance and bearing estimation. We investigated pointing accuracy in an outdoor environment as part of a larger project in which we compare spatial behaviour in real environments with that in virtual environments (virtual reality). We carried out experiments in the centre of Tübingen (ca 600 m × 400 m). Standing near one of eleven well-known landmarks, subjects had to turn a pointer in the estimated direction of each of the other ten invisible (occluded) landmarks (all ten subjects had lived in Tübingen for at least two years). The estimated directions were read by the experimenter from a hidden compass and later compared with the actual directions. This procedure was repeated from all eleven locations along the subjects' route through the town. The mean absolute angular error of pointing was 10.8°, while the individual subject's means ranged from 9.1° to 15.0°. We found highly significant differences in pointing accuracy for the different locations; mean absolute error ranged from 6.3° to 15.8° (n=10). Systematic asymmetries in pointing from one landmark to another and back were not found. The pointing accuracy found in this study is clearly better than that found in most other studies, which might relate to the familiarity and the size of the environment. The apparent absence of an asymmetry in the pointing directions between two locations is consistent with the notion of a metric mental map.

Details

show
hide
Language(s):
 Dates: 1997-08
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: BibTex Citekey: 424
DOI: 10.1068/v970236
 Degree: -

Event

show
hide
Title: 20th European Conference on Visual Perception (ECVP 1997)
Place of Event: Helsinki, Finland
Start-/End Date: 1997-08-24 - 1997-08-29

Legal Case

show

Project information

show

Source 1

show
hide
Title: Perception
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: London : Pion Ltd.
Pages: - Volume / Issue: 26 (ECVP Abstract Supplement) Sequence Number: - Start / End Page: 100 Identifier: ISSN: 0301-0066
CoNE: https://pure.mpg.de/cone/journals/resource/954925509369