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  Verbal Shadowing and Visual Interference in Spatial Memory

Meilinger, T., & Bülthoff, H. (2013). Verbal Shadowing and Visual Interference in Spatial Memory. PLoS ONE, 8(9), 1-9. doi:10.1371/journal.pone.0074177.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-001A-1343-E Version Permalink: http://hdl.handle.net/21.11116/0000-0001-8598-D
Genre: Journal Article

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Meilinger, T1, 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: Spatial memory is thought to be organized along experienced views and allocentric reference axes. Memory access from different perspectives typically yields V-patterns for egocentric encoding (monotonic decline in performance along with the angular deviation from the experienced perspectives) and W-patterns for axes encoding (better performance along parallel and orthogonal perspectives than along oblique perspectives). We showed that learning an object array with a verbal secondary task reduced W-patterns compared with learning without verbal shadowing. This suggests that axes encoding happened in a verbal format; for example, by rows and columns. Alternatively, general cognitive load from the secondary task prevented memorizing relative to a spatial axis. Independent of encoding, pointing with a surrounding room visible yielded stronger W-patterns compared with pointing with no room visible. This suggests that the visible room geometry interfered with the memorized room geometry. With verbal shadowing and without visual interference only V-patterns remained; otherwise, V- and W-patterns were combined. Verbal encoding and visual interference explain when W-patterns can be expected alongside V-patterns and thus can help in resolving different performance patterns in a wide range of experiments.

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 Dates: 2013-09
 Publication Status: Published online
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 Identifiers: DOI: 10.1371/journal.pone.0074177
eDoc: e74177
BibTex Citekey: MeilingerB2013
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Title: PLoS ONE
Source Genre: Journal
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Pages: - Volume / Issue: 8 (9) Sequence Number: - Start / End Page: 1 - 9 Identifier: -