Greeble paired with a positive image (IMAGE) The Polish Association of Social Psychology Caption A Greeble (an invented object used in psychological studies) paired with a positive image as part of the surveys. The same Greeble will be then used in a pair with a negative image, in order to test whether a person’s attitude to it will change. Credit Michael J. Tarr (Greeble) and IAPS (valenced image) Usage Restrictions Credit must be given to the creator. License CC BY 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.