Lightness induction (White’s bars) (IMAGE) University of Exeter Caption The two grey bars in the middle of this figure are the same grey, but the one on the left (surrounded by more black bars) appears darker. This is the opposite of the simultaneous contrast example above, because darker surrounds now make the target look darker. Credit Jolyon Troscianko Usage Restrictions This image may only be used with reports of this research License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.