The current paper features an attempt at a new interpretation of the affirmation phenomena introduced by D. N. Uznadze. The author considers the process of affirmation forming as the implementation of measurement actions. The idea is that measurement actions, in addition to their direct function, also structure the background perceptual space (which is believed to shape the cognitive medium of perception images). Distortions of the measurement procedure, in one way or another, correlate with different forms of structuring the background perceptual space and with its increasing role in emotional coloring. The article describes an experiment in which the objects were not only perceived and evaluated, but also influenced the accuracy of the perception of objects, since they "control" the forms of the structuring of the background space and give it an emotional coloring. The experiment was carried out according to a procedure similar to the classical experiment conducted by D. N. Uznadze. The experiment featured an illusion of affirmation formation through the multiple presentation of circles of different diameters. We used circles of the same size, but with different versions of images inside: an emotionally colored image ("smileys"), ordered emotional ("triangles"), disordered emotionless ("chaotic points"). As a result, the emotionally colored image inside the circles caused an increase in the number of errors in the comparison of the circles, and the ordered, non-emotional image increased the accuracy of perception.