Handlungsbezogene Einflüsse auf die multisensorische Integration II
Zusammenfassung der Projektergebnisse
The primary goal of this project was to contribute to a better understanding of perceptualmotor interactions. Previous research indicated that features of observers’ body and its action can influence their perception of external objects and, vice versa, features of objects can influence body and action perception under diverse conditions. Several studies were conducted within this project aiming to uncover the core mechanism underlying these findings. The results support the view that body-related (i.e. interoceptive) signals inform the organism about external stimuli and, vice versa, external stimuli inform about body, when interceptive and exteroceptive signals are interrelated. In other words, changes in perceiving the body and objects beyond the body emerge following basic principles of multisensory integration. In a typical study, participants were engaged in virtual interactions with distant visual objects, and we measured target and body perception. Introduced intersensory discrepancies resulted in perceptual changes which varied as a function of signal reliability and perceived signal correlation, and which were widely consistent with the predictions of a model of statistically optimal sensory integration. These perceptual changes were evident during action planning and after initially unrelated signals repeatedly cooccurred. They propagated across perceptual dimensions through size-constancy mechanisms under certain conditions and were pronounced in active and passive actions to the same degree. Related phenomena were apparent in the perception of time and space when temporal and spatial signals coincided. The results also indicated that perceptual changes are accompanied by distortions of an internal reference scale and by changes in the distribution of spatial attention. Perceptual consequences of attentional changes have been discussed and tested for several phenomena including well-known geometrical-optical illusions. This project work provides a basic mechanistic description for many different observations, it questions some of their common explanations and points to an important role of attention for their origin.
Projektbezogene Publikationen (Auswahl)
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Impact of action planning on visual and body perception in a virtual grasping task. Experimental Brain Research, 237(9), 2431-2445.
Kirsch, Wladimir & Kunde, Wilfried
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Intentional binding is unrelated to action intention.. Journal of Experimental Psychology: Human Perception and Performance, 45(3), 378-385.
Kirsch, Wladimir; Kunde, Wilfried & Herbort, Oliver
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Multisensory integration in virtual interactions with distant objects. Scientific Reports, 9(1).
Kirsch, Wladimir & Kunde, Wilfried
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On perceptual biases in virtual object manipulation: Signal reliability and action relevance matter. Attention, Perception, & Psychophysics, 81(8), 2881-2889.
Kirsch, Wladimir & Kunde, Wilfried
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On Why Objects Appear Smaller in the Visual Periphery. Psychological Science, 31(1), 88-96.
Kirsch, Wladimir; Pfister, Roland & Kunde, Wilfried
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Action affects perception through modulation of attention. Attention, Perception, & Psychophysics, 83(5), 2320-2330.
Kirsch, Wladimir; Kitzmann, Tim & Kunde, Wilfried
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Impact of proprioception on the perceived size and distance of external objects in a virtual action task. Psychonomic Bulletin & Review, 28(4), 1191-1201.
Kirsch, Wladimir; Kunde, Wilfried & Herbort, Oliver
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On the origin of the Ebbinghaus illusion: The role of figural extent and spatial frequency of stimuli. Vision Research, 188, 193-201.
Kirsch, Wladimir & Kunde, Wilfried
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On the relevance of task instructions for the influence of action on perception. Attention, Perception, & Psychophysics, 83(6), 2625-2633.
Kirsch, Wladimir
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The size of attentional focus modulates the perception of object location. Vision Research, 179, 1-8.
Kirsch, Wladimir & Kunde, Wilfried
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On the origin of the Roelofs and induced Roelofs effects. Visual Cognition, 30(7), 480-489.
Kirsch, Wladimir
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On the Role of Interoception in Body and Object Perception: A Multisensory-Integration Account. Perspectives on Psychological Science, 18(2), 321-339.
Kirsch, Wladimir & Kunde, Wilfried
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Perceptual changes after learning of an arbitrary mapping between vision and hand movements. Scientific Reports, 12(1).
Kirsch, Wladimir & Kunde, Wilfried
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Changes in body perception following virtual object manipulation are accompanied by changes of the internal reference scale. Scientific Reports, 13(1).
Kirsch, Wladimir & Kunde, Wilfried
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Human perception of spatial frequency varies with stimulus orientation and location in the visual field. Scientific Reports, 13(1).
Kirsch, Wladimir & Kunde, Wilfried
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On the interplay between time and space perception in discontinuous stimulus displays. Attention, Perception, & Psychophysics, 85(7), 2406-2421.
Kirsch, Wladimir
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On the origin of the Helmholtz’s square illusion: An attentional account. Attention, Perception, & Psychophysics, 85(6), 2018-2032.
Kirsch, Wladimir & Kunde, Wilfried
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On the origin of the Ponzo illusion: An attentional account.. Journal of Experimental Psychology: Human Perception and Performance, 50(2), 163-177.
Kirsch, Wladimir & Kunde, Wilfried
