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  Multisensory Recognition of Actively Explored Objects

Ernst, M., Lange, C., & Newell, F. (2007). Multisensory Recognition of Actively Explored Objects. Canadian Journal of Experimental Psychology, 61(3), 242-253. doi:10.1037/cjep2007025.

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https://psycnet.apa.org/fulltext/2007-17707-008.pdf (Verlagsversion)
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Ernst, MO1, 2, Autor           
Lange, C1, 2, 3, Autor           
Newell, FN, Autor           
Affiliations:
1Research Group Multisensory Perception and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497806              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              
3Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497797              

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 Zusammenfassung: Shape recognition can be achieved though vision or touch, raising the issue of how this information is shared across modalities. Here we provide a short review of previous findings on cross-modal object recognition and we provide new empirical data on multisensory recognition of actively explored objects. It was previously shown that, similar to vision, haptic recognition of objects fixed in space is orientation specific and that cross-modal object recognition performance was relatively efficient when these views of the objects were matched across the sensory modalities [Newell, Ernst, Tjan amp;amp;amp;amp;amp; Bülthoff, 2001]. For actively explored, i.e. spatially unconstrained, objects we now found a cost in cross-modal relative to within-modal recognition performance. At first, this may seem to be in contrast to findings by Newell et al. (2001). However, a detailed video analysis of the visual and haptic exploration behaviour during learning and recognition revealed that one view of th
e ob
ject
s wa
s pr
edom
inantly explored relative to all others. Thus, active visual and haptic exploration is not balanced across object views. The cost in recognition performance across modalities for actively explored objects could be attributed to the fact that the predominantly learned object view was not appropriately matched between learning and recognition test in the cross-modal conditions. Thus, it seems that participants naturally adopt an exploration strategy during visual and haptic object learning that involves constraining the orientation of the objects. Although this strategy ensures good within modal performance, it is not optimal for achieving the best recognition performance across modalities.

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 Datum: 2007-09
 Publikationsstatus: Erschienen
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 Ort, Verlag, Ausgabe: -
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 Art der Begutachtung: -
 Identifikatoren: DOI: 10.1037/cjep2007025
BibTex Citekey: 4459
 Art des Abschluß: -

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Titel: Canadian Journal of Experimental Psychology
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: American Psychological Association (PsycARTICLES)
Seiten: - Band / Heft: 61 (3) Artikelnummer: - Start- / Endseite: 242 - 253 Identifikator: ISSN: 1196-1961
CoNE: https://pure.mpg.de/cone/journals/resource/954925612990