Objective:We try to examine the hypothesis that perceptual reversal is function of frontoparietal cortex. Methods:We employed block design in functional MRI
extracted event signal of endogenous reversal of Necker cube and compared with that of exogenous reversal. Results:Functional MRI revealed that spatial varieties were significant in bilateral superior and middle frontal lobe. Conclusion:Perceptual reversal may be the function of frontal cortex.