The human primary visual cortex (V1) encodes the perceived position of static but not moving objects

Brain activity in retinotopic cortex reflects illusory changes in stimulus position. Is this neural signature a general code for apparent position? Here we show that responses in primary visual cortex (V1) are consistent with perception of the Muller-Lyer illusion; however, we found no such signature for another striking illusion, the curveball effect. This demonstrates that V1 does not encode apparent position per se. Neural responses in the human primary visual cortex (V1) are shown here to be consistent with perception of the Muller-Lyer illusion but not for the curveball effect, demonstrating that V1 does not encode apparent position per se.