Visual-Haptic Distance Perception in the Central Fovea and Periphery of the Peripersonal Space

Oscar Ariza, Frank Steinicke, Lihan Chen, Fang Fang
International Multisensory Research Forum (IMRF), page (accepted) - 2016
Objects produce quite distinct images in terms of the area on which they are projected in the cortical representation, while the cortical area is significantly larger for objects in the fovea compared to those viewed in the periphery. Previous work by Valsecchi and Gegenfurtner [1] show that perceptual recalibration can occur while objects move across the visual field. Furthermore, Goodale et al. [2] proposed the functional dissociation of perception and action in the framework of dual-routes. In this poster we report about how perception and action are coupled in the peripersonal space for distance estimation task by considering perception and action in the fovea as well as periphery. In our experiments, participants are instructed to report the distance to virtual target objects displayed on the head-mounted display (HMD) by moving a comparison object to a target using their tracked finger. As a baseline, we use a closed-loop scenario in which participants can see a visual hand representation, whereas in the open-loop condition participants do not perceive visual feedback, but only perceive haptic information about their actions. We consider four configurations of the relative position between the target and the comparison: (1) starting point of the comparison and the target location are placed at the central foveal location but vary in depth; (2) starting point of the comparison and the target location are located at the peripheral positions and vary in depth; (3) starting point of the comparison is at the central foveal location while the position of the target is at the peripheral location; (4) starting point of the comparison is at the peripheral location while the position of the target is at the central foveal location. The result will show how humans perceive the peripersonal space in HMD environment, in particular, when performing actions in- and outside the central fovea. We will present the experiment as well as the results, and will discuss potential applications to HMD tele-operations. [1] Valsecchi, M. & Gegenfurtner, K.R. (2016) Dynamic re-calibration of perceived size in fovea and periphery through predictable size changes. Current Biology, 26, 59–63 . [2] Chen J. Sperandio I. Goodale M. A. (2015). Differences in the effects of crowding on size perception and grip scaling in densely cluttered 3-d scenes. Psychological Science, 26, 58–69.

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BibTex references

@InProceedings\{ASCF16,
  author       = "Ariza, Oscar and Steinicke, Frank and Chen, Lihan and Fang, Fang",
  title        = "Visual-Haptic Distance Perception in the Central Fovea and Periphery of the Peripersonal Space",
  booktitle    = "International Multisensory Research Forum (IMRF)",
  pages        = "(accepted)",
  year         = "2016",
  url          = "http://basilic.informatik.uni-hamburg.de/Publications/2016/ASCF16"
}

Other publications in the database

» Oscar Ariza
» Frank Steinicke
» Lihan Chen