Modulation of Walking Speed by Changing Optic Flow in Persons with Stroke

2006 ◽  
Author(s):  
A. Lamontagne ◽  
J. Fung ◽  
B.J. McFadyen ◽  
J. Faubert
Keyword(s):  
Optic Flow ◽  
Walking Speed

scholarly journals Modulation of walking speed by changing optic flow in persons with stroke

2007 ◽  
Vol 4 (1) ◽  
Author(s):  
Anouk Lamontagne ◽  
Joyce Fung ◽  
Bradford J McFadyen ◽  
Jocelyn Faubert
Keyword(s):  
Optic Flow ◽  
Walking Speed

scholarly journals The Perception of Walking Speed in a Virtual Environment

2005 ◽  
Vol 14 (4) ◽  
pp. 394-406 ◽  
Author(s):  
Tom Banton ◽  
Jeanine Stefanucci ◽  
Frank Durgin ◽  
Adam Fass ◽  
Dennis Proffitt
Keyword(s):  
Virtual Environments ◽  
Optic Flow ◽  
Stride Length ◽  
Walking Speed ◽  
The Gaze ◽  
Head Mounted Display ◽  
Speed Perception ◽  
Perceived Speed ◽  
The Relationship ◽  
Straight Ahead

Studies of locomotion in virtual environments assume that correct geometric principles define the relationship between walking speed and environmental flow. However, we have observed that geometrically correct optic flow appears to be too slow during simulated locomotion on a treadmill. Experiment 1 documents the effect in a head-mounted display. Experiment 2 shows that the effect is eliminated when the gaze is directed downward or to the side, or when the walking speed is slow. Experiment 3 shows that the effect is unchanged by stride length. Experiment 4 verifies that the effect is not attributable to image jitter. The change in perceived speed from straight ahead to side or down gaze coincides with a shift from expanding optic flow to lamellar flow. Therefore, we hypothesize that lamellar flow is necessary for accurate speed perception, and that a limited field of view eliminates this cue during straight-ahead gaze.

Kinetic alterations independent of walking speed in elderly fallers

2000 ◽  
Vol 81 (6) ◽  
pp. 730-735
Author(s):  
D. Casey Kerrigan ◽  
Laura W. Lee ◽  
Tanya J. Nieto ◽  
John D. Markman ◽  
James J. Collins ◽  
...  
Keyword(s):  
Walking Speed

A Case Study of Malaysian Pedestrian Walking Speed at Shopping Malls in Kuala Lumpur, Malaysia using Human Behaviour Simulator (HBS)

2019 ◽  
Vol 11 (4) ◽  
Author(s):  
Mohd Firdaus Mohamad Ali ◽  
◽  
Muhammad Salleh Abustan ◽  
Siti Hidayah Abu Talib ◽  
◽  
...  
Keyword(s):  
Walking Speed ◽  
Human Behaviour ◽  
Shopping Malls ◽  
Kuala Lumpur

Multiresolutional Optic Flow

2003 ◽  
Author(s):  
Matthew J. Ahlert
Keyword(s):  
Optic Flow
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