Excerpt: Postural, Visual, and Manual Coordination in the Development of Prehension

Karen Adolph
This experiment investigated real-time and developmental cascades of postural, visual, and manual actions for object prehension in 38 6- to 12-month-old infants and 8 adults. Participants’ task was to retrieve a toy as they spun past it at different speeds on a motorized chair. Head-mounted eye trackers recorded visual actions and video captured postural and manual actions. Prehension performance decreased at faster speeds. Prehension played out in a sequence of postural-visual-manual behaviors—first turning the head,...
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