Affective stimulus properties influence size perception and the Ebbinghaus illusion
Psychological Research (2008) - Comment
pubmed: 17410379  doi: 10.1007/s00426-007-0114-6  issn: 0340-0727  issn: 1430-2772 

Niek R. Van Ulzen, Gün R. Semin, Raôul R. D. Oudejans, Peter J. Beek