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  Influence of gain factors and attention on sensor fusion in the perception of self-rotation

Berger, D., von der Heyde, M., & Bülthoff, H. (2002). Influence of gain factors and attention on sensor fusion in the perception of self-rotation. Poster presented at 25th European Conference on Visual Perception (ECVP 2002), Glasgow, UK.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-DF5A-8 Version Permalink: http://hdl.handle.net/21.11116/0000-0005-97EB-8
Genre: Poster

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 Creators:
Berger, DR1, 2, Author              
von der Heyde, M1, 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              

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 Abstract: We investigated how optic flow and physical body movements are integrated in the perception of upright self-rotation. In sensor fusion experiments, large intersensory conflicts often lead to bimodal response distributions (ie response is dominated by any one of the input modalities). We hypothesised that the selection of dominant modality can be controlled by attention. Subjects were rotated by means of a Stewart motion platform. Optic flow stimuli were presented on a video projection screen. For each trial, first a concurrent rotation of the platform and the visual stimulus was presented. Subjects were then asked to reproduce either the perceived visual rotation or the perceived platform rotation using a joystick. During rotation reproduction, a gain factor between the rotation speeds of the two cues was applied. The results show that visual cues exert a greater influence on the vestibularly reproduced rotation than vice versa. When the difference between visual and platform rotation was great, response distributions for each of the two attentional conditions were unimodal, but the means of the distributions of these two conditions differed significantly from each other. This shows that the fused, unimodal percept can be shifted by an attentional bias toward the attended cue.

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 Dates: 2002-08
 Publication Status: Published in print
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 Identifiers: BibTex Citekey: 1900
DOI: 10.1177/03010066020310S101
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Title: 25th European Conference on Visual Perception (ECVP 2002)
Place of Event: Glasgow, UK
Start-/End Date: 2002-08-25 - 2002-08-29

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Title: Perception
Source Genre: Journal
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Publ. Info: London : Pion Ltd.
Pages: - Volume / Issue: 31 (ECVP Abstract Supplement) Sequence Number: - Start / End Page: 127 Identifier: ISSN: 0301-0066
CoNE: https://pure.mpg.de/cone/journals/resource/954925509369