Journal of Vision

The role of vision in detecting and correcting fingertip force errors during object lifting

gbucking — Wed, 16 Mar 2011 12:25:12 -0700

Vision provides many reliable cues about the likely weight of an object, allowing individuals to predict how heavy it will be. The forces used to lift an object for the first time reflect these predictions. This, however, leads to inevitable errors during lifts of objects that weigh unexpected amounts. Fortunately, these errors are rarely made twice in a row—lifters have the impressive ability to detect and correct large or small misapplications of fingertip forces, even while experiencing weight illusions.

Journal of Vision

Motion processing with two eyes in three dimensions

rokers — Fri, 11 Mar 2011 10:28:12 -0800

The movement of an object toward or away from the head is perhaps the most critical piece of information an organism can extract from its environment. Such 3D motion produces horizontally opposite motions on the two retinae. Little is known about how or where the visual system combines these two retinal motion signals, relative to the wealth of knowledge about the neural hierarchies involved in 2D motion processing and binocular vision.

Journal of Vision

Reducing backward masking through action game training

renjieli — Thu, 10 Mar 2011 23:44:08 -0800

Action video game play enhances basic visual skills such as crowding acuity and contrast sensitivity (C. S. Green &
D. Bavelier, 2007; R. Li, U. Polat, W. Makous, & D. Bavelier, 2009). Here, we ask whether the dynamics of perception may
also be altered as a result of playing action games. A backward masking paradigm was used to test the hypothesis that
action video game play also alters the temporal dynamics of vision. As predicted, action gamers showed reduced backward
masking and an accompanying training study established the causal role of action game play in this enhancement.

Journal of Vision

The contributions of central versus peripheral vision

arvojenny — Fri, 03 Dec 2010 13:54:45 -0800

Which region of the visual field is most useful for recognizing scene gist, central vision (the fovea and parafovea) based on
its higher visual resolution and importance for object recognition, or the periphery, based on resolving lower spatial
frequencies useful for scene gist recognition, and its large extent? Scenes were presented in two experimental conditions: a
“Window,” a circular region showing the central portion of a scene, and blocking peripheral information, or a “Scotoma,”

Journal of Vision