When Walking Makes Perception Better  

Oleh:

Durgin, Frank H.

Jenis: Article from Journal - e-Journal
Dalam koleksi: Current Directions in Psychological Science vol. 18 no. 01 (Feb. 2009), page 43-47.
Topik: Perception; Action; Perceptual Learning; Optic Flow; Locomotion
Fulltext: 09. When Walking Makes Perception Better.pdf (136.86KB)

Isi artikel

When we move, the visual world moves toward us. That is, self-motion normally produces visual signals (flow) that tell us about our own motion. But these signals are distorted by our motion: Visual flow actually appears slower while we are moving than it does when we are stationary and our surroundings move past us. Although for many years these kinds of distortions have been interpreted as a suppression of flow to promote the perception of a stable world, current research has shown that these shifts in perceived visual speed may have an important function in measuring our own self-motion. Specifically, by slowing down the apparent rate of visual flow during self-motion, our visual system is able to perceive differences between actual and expected flow more precisely. This is useful in the control of action.

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