Dartmouth research group has found a new and unexpected way our attention can be grabbed – by grabbable objects. Their study, which appears in the March 17 advance online issue of Nature Neuroscience, demonstrates that objects we typically associate with grasping, such as screwdrivers, forks or pens, automatically attract our visual attention, especially if these items are on a persons right-hand side.
In the brain, there are two primary visual pathways, one for identifying objects (perception) and one to guide your arms and legs based on what you see (action). To better understand how these two systems may interact, the Dartmouth team studied whether visual perception, specifically peripheral visual attention, influences motor systems in the brain.
"People have studied peripheral vision and how it helps perception, but nobody really talked about it in terms of helping action," says Todd C. Handy, the lead author and a research assistant professor at the Center for Cognitive Neuroscience at Dartmouth. "There are certain things that we all know attract our attention, like flashing lights and loud noises. Yet, think about how often we grab things without directly looking at them. Now heres evidence that, to help us do this, grabbable objects can literally grab our attention. Theres a clear association."
Sue Knapp | EurekAlert!
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