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  Integration of force and position cues for shape perception through active touch

Drewing, K., & Ernst, M. (2006). Integration of force and position cues for shape perception through active touch. Brain Research, 1078(1), 92-100. doi:10.1016/j.brainres.2005.12.026.

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Drewing, K1, Autor           
Ernst, MO2, Autor           
Affiliations:
1Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794              
2Research Group Multisensory Perception and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497806              

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 Zusammenfassung: This article systematically explores cue integration within active touch. Our research builds upon a recently made distinction between position and force cues for haptic shape perception: When sliding a finger across a bumpy surface, the finger follows the surface geometry (position cue). At the same time the finger is exposed to forces related to the slope of the surface (force cue). Experiment 1 independently varied force and position cues to the curvature of 3D-arches. Perceived curvature could be well described as a weighted average of the two cues. Experiment 2 found more weight of the position cue for more convex high arches and higher weight of the force cue for less convex shallow arches – probably mediated through a change in relative cue reliability. Both findings are in good agreement with the Maximum-Likelihood-Estimation (MLE) model for cue integration and, thus, carrying this model over to the domain of active haptic perception.

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 Datum: 2006-02
 Publikationsstatus: Erschienen
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Titel: Brain Research
Genre der Quelle: Zeitschrift
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Seiten: - Band / Heft: 1078 (1) Artikelnummer: - Start- / Endseite: 92 - 100 Identifikator: -