Neural Processing Letters

, Volume 10, Issue 2, pp 81–87 | Cite as

Walking on Tiles

  • Yoram Baram


It is shown that a tiled floor provides continuous stabilizing visual information against stumbling and falling while walking. A steady walk, eyes at a nearly constant height, maintains a certain level of net optical flow in a tile's image. A stumble generates a disturbance in the net flow, which is fed back as a corrective signal to the limbs. This may explain why people with certain motoric disorders, such as those associated with Parkinson's disease, appear to be more comfortable walking on tiled floors than on untiled ones.

Parkinson's disease visual feedback optical flow 


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Copyright information

© Kluwer Academic Publishers 1999

Authors and Affiliations

  • Yoram Baram
    • 1
  1. 1.Department of Computer ScienceTechnion, Israel Institute of TechnologyHaifaIsrael, e-mail

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