22 November 2025 : Clinical Research
McCollough and Watercolor Effects: Visual Illusions that Fade in Early Alzheimer’s Disease
Vaiva Sutnikiene
ABCDEF 1*, Gyte Pakulaite-Kazliene CDE 1, Egle Audronyte CDE 1, Justina Kuzmickaite DE 1, Gintaras Kaubrys ACDE 1
DOI: 10.12659/MSM.950194
Med Sci Monit 2025; 31:e950194
Figure 1 Procedure of testing the McCollough effect. The 3 phases of testing the McCollough Effect: (A) testing before induction, (B) induction for 5 min, and (C) testing after induction. ME was evaluated by reporting the chromatic changes in 6 vertical and 6 horizontal black-and-white line patterns. Created using Microsoft Paint, version 6.3 (Microsoft Corporation, Redmond, WA, USA) and Microsoft PowerPoint, Microsoft Office Professional Plus 2016, version 16.0.18827.20102 (Microsoft Corporation, Redmond, WA, USA).