McIntosh Robert D, Lashley Gavin
Human Cognitive Neuroscience, University of Edinburgh, 7 George Square, Edinburgh EH8 9JZ, UK.
Neuropsychologia. 2008;46(9):2441-4. doi: 10.1016/j.neuropsychologia.2008.03.003. Epub 2008 Mar 15.
The perception/action model is the dominant account of the primary division of labour in the human visual pathway. Integral to this model is the idea that goal-directed actions are guided spatially by bottom-up vision, independent of perceptual recognition and top-down object knowledge. We question this idea by showing that the expected size of familiar objects (matchboxes) affects the amplitude of reaches made to grasp them, and the pre-shaping of the hand, even when binocular cues are available. This suggests that perceptual recognition routinely influences action programming.
感知/行动模型是人类视觉通路中主要分工的主导解释。该模型的核心观点是,目标导向的行动在空间上由自下而上的视觉引导,独立于感知识别和自上而下的物体知识。我们通过实验对这一观点提出质疑,实验表明,即使存在双眼线索,熟悉物体(火柴盒)的预期大小也会影响抓取它们时的伸手幅度以及手部的预塑形。这表明感知识别通常会影响行动规划。