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 4 Ishihara test results in accordance with whether the Watercolor effect was perceived. The WE was not perceived when participants exhibited a significantly higher number of errors on the Ishihara test. Lines represent medians; boxes represent interquartile ranges; and error bars represent the minimum and maximum scores. Created using RStudio, version 1.2.5033 (RStudio, PBC, Boston, MA, USA).