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Lab report 3. Illusion and action: The effects of the Muller-Lyer illusion on the accuracy of pointing tasks without vision. The evidence from the current study shows that the Muller-Lyer illusion had an effect on pointing task without vision. The pointing on the shorter Muller-Lyer illusion was underestimated (-3.50) more than the pointing on the longer Muller-Lyer illusion (-0.05), suggesting that the shorter Muller-Lyer illusion was perceived to be shorter than the longer Muller-Lyer illusion even thou the lines were the same length. These findings supported the Planning-Control (Glover, 2002) and Common Representation models; both predicted that illusion will affect accuracy in the pointing task. Similar findings have been found in earlier research (Gentilucci, Chieffi, Daprati, Saetti & Toni, 1996; Meegan et al, 2004). However, some research has reported inconsistent findings to the current study. Goodale and Milner (1992) put forward the Perception-Action model also known as the 'two visual...

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