Welcome to DU!
The truly grassroots left-of-center political community where regular people, not algorithms, drive the discussions and set the standards.
Join the community:
Create a free account
Support DU (and get rid of ads!):
Become a Star Member
Latest Breaking News
General Discussion
The DU Lounge
All Forums
Issue Forums
Culture Forums
Alliance Forums
Region Forums
Support Forums
Help & Search
Science
Related: About this forumGaze and Gait When Walking in Natural Terrain
From http://www.cell.com/current-biology/fulltext/S0960-9822(18)30309-9
Switch to Standard View Gaze and the Control of Foot Placement When Walking in Natural Terrain
Jonathan Samir Matthis, Jacob L. Yates, Mary M. Hayhoe
Published Online: April 12, 2018
Highlights
Gaze and full-body kinematics were recorded during real-world locomotion
Walkers show distinct gaze strategies appropriate for the demands of each terrain
Nevertheless, walkers also adopted a constant look-ahead time across all terrains
Walkers tune gaze behavior to sustain consistent locomotor strategy in all terrains
Summary
Human locomotion through natural environments requires precise coordination between the biomechanics of the bipedal gait cycle and the eye movements that gather the information needed to guide foot placement. However, little is known about how the visual and locomotor systems work together to support movement through the world. We developed a system to simultaneously record gaze and full-body kinematics during locomotion over different outdoor terrains. We found that not only do walkers tune their gaze behavior to the specific information needed to traverse paths of varying complexity but that they do so while maintaining a constant temporal look-ahead window across all terrains. This strategy allows walkers to use gaze to tailor their energetically optimal preferred gait cycle to the upcoming path in order to balance between the drive to move efficiently and the need to place the feet in stable locations. Eye movements and locomotion are intimately linked in a way that reflects the integration of energetic costs, environmental uncertainty, and momentary informational demands of the locomotor task. Thus, the relationship between gaze and gait reveals the structure of the sensorimotor decisions that support successful performance in the face of the varying demands of the natural world.
...
Jonathan Samir Matthis, Jacob L. Yates, Mary M. Hayhoe
Published Online: April 12, 2018
Highlights
Gaze and full-body kinematics were recorded during real-world locomotion
Walkers show distinct gaze strategies appropriate for the demands of each terrain
Nevertheless, walkers also adopted a constant look-ahead time across all terrains
Walkers tune gaze behavior to sustain consistent locomotor strategy in all terrains
Summary
Human locomotion through natural environments requires precise coordination between the biomechanics of the bipedal gait cycle and the eye movements that gather the information needed to guide foot placement. However, little is known about how the visual and locomotor systems work together to support movement through the world. We developed a system to simultaneously record gaze and full-body kinematics during locomotion over different outdoor terrains. We found that not only do walkers tune their gaze behavior to the specific information needed to traverse paths of varying complexity but that they do so while maintaining a constant temporal look-ahead window across all terrains. This strategy allows walkers to use gaze to tailor their energetically optimal preferred gait cycle to the upcoming path in order to balance between the drive to move efficiently and the need to place the feet in stable locations. Eye movements and locomotion are intimately linked in a way that reflects the integration of energetic costs, environmental uncertainty, and momentary informational demands of the locomotor task. Thus, the relationship between gaze and gait reveals the structure of the sensorimotor decisions that support successful performance in the face of the varying demands of the natural world.
...
More at link.
InfoView thread info, including edit history
TrashPut this thread in your Trash Can (My DU » Trash Can)
BookmarkAdd this thread to your Bookmarks (My DU » Bookmarks)
2 replies, 1141 views
ShareGet links to this post and/or share on social media
AlertAlert this post for a rule violation
PowersThere are no powers you can use on this post
EditCannot edit other people's posts
ReplyReply to this post
EditCannot edit other people's posts
Rec (2)
ReplyReply to this post
2 replies
= new reply since forum marked as read
Highlight:
NoneDon't highlight anything
5 newestHighlight 5 most recent replies
Gaze and Gait When Walking in Natural Terrain (Original Post)
sl8
Apr 2018
OP
safeinOhio
(32,635 posts)1. Thomas Dolby
It's poetry in motion
She turned her tender eyes to me
As deep as any ocean
As sweet as any harmony
Mm, but she blinded me with science
She blinded me with science
And failed me in biology, yeh yeh
Igel
(35,270 posts)2. Wouldn't have thought to use eye-tracking for this.
Can't imagine why I wouldn't have. Useful bit of technology. Nice to see it's progressed to where it's easily mobile.
Cool to see the IR blocking faceplate. No pun intended.