Influence of acoustic background on the choice of visual stimuli by children of early preschool age

The work continues a cycle of psychophysical experiments on studying the features of visual stimuli recognition of different colors and different sizes by children of early preschool age. For measurements, a game method of visual choice using a touch screen monitor in quiet conditions and under an acoustic background – a recording of noise in a kindergarten group, including children’s spoken language (“children’s polyphony”). The noise was fed through headphones, its intensity was 45 dB (the level of spoken language). The study involved children aged 3–4 years (n = 31) attending a city kindergarten. All children had normal vision and hearing. The results confirmed previously obtained data that children of this age are significantly worse at choosing from geometric figures by the feature “color” than by the feature “size” (number of errors). The introduction of the noise of “children’s polyphony” does not change this ratio, but significantly increases the number of attempts to solve and the time of the sensorimotor response (p