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  Haptic identification of familiar objects: Viewpoint changes disrupt matching irrespective of task difficulty

Lawson, R., & Bülthoff, H. (2007). Haptic identification of familiar objects: Viewpoint changes disrupt matching irrespective of task difficulty. Poster presented at Joint Meeting of the Psychonomic Society and the Experimental Psychology Society, Edinburgh, UK. doi:10.1080/17470210701673865.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-CCDF-2 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-F4AB-9
Genre: Poster

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 Creators:
Lawson, R, Author              
Bülthoff, HH1, 2, Author              
Affiliations:
1Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794              
2Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497797              

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 Abstract: We present the first studies to examine view effects on the haptic identification of familiar objects. Plastic models were created for twenty pairs of similarly-shaped familiar objects (e.g., chair/bed; dog/pig; car/van; bath/sink) and a morph between each pair. Objects at fixed orientations were presented sequentially behind an occluder in three matching studies. We tested how 90º depth rotations from the first to the second object influenced people's ability to detect shape changes. Task difficulty varied from easy (mismatch trials presented objects from different object pairs) to moderate (mismatches presented both objects from a pair) to hard (mismatches presented an object and its morph). View changes from the first to the second object always impaired performance. However, surprisingly, unlike our results for the same objects presented visually in the same task, the disruptive effects of task-irrelevant rotations were no greater for harder tasks. Thus although viewpoint influences both visual and haptic object identification, its effects are probably due to different processes, since the difficulty of shape discrimination only influences visual matching.

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 Dates: 2007-07
 Publication Status: Published online
 Pages: -
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 Rev. Method: -
 Identifiers: BibTex Citekey: 4525
DOI: 10.1080/17470210701673865
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Title: Joint Meeting of the Psychonomic Society and the Experimental Psychology Society
Place of Event: Edinburgh, UK
Start-/End Date: 2007-07-04 - 2007-07-07

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Title: Quarterly Journal of Experimental Psychology
Source Genre: Journal
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Publ. Info: Colchester, East Sussex, UK : Psychology Press
Pages: - Volume / Issue: 60 (12) Sequence Number: - Start / End Page: 1710 Identifier: ISSN: 1747-0218
CoNE: https://pure.mpg.de/cone/journals/resource/954925255152