Abstract
Our eye-tracking research presents the time of solving and the chosen oculometric parameters for two different visual perception tests on a sample of 44 people aged from 7 to 83. The findings have shown biometric stability of subject’s eyes with respect to the fixation times and saccade velocities. The main purpose of this study was to examine the speed of performing two different visual perception tests in people of various ages. In this study, an eye tracker (The Eye Tribe) captured several parameters during two different visual perception tests conducted with 44 people aged from 7 to 83 years. We determined a relationship between the time of solving the perception tests and the age of the persons being tested. For participants aged 7 to 20 years and over 50 years, lower frequencies of eye fixation and lower values of mouse average trajectory length were found. People of this age declared significantly less stress during the first test. Pearson correlation coefficient between the mean of the duration of the fixation times and the average speed of the saccades for all tested individuals in both tests were high (r ˃ 0.7). Based on our results, it was suggested that it is highly probable that a person with relatively high mean of the duration of the fixation times or average saccade velocities recorded for one test will also have high values of these parameters during another tests. No significant correlations were found between oculometric parameters and parameters related to computer mouse movement. This study suggests that eye-tracking method could be very useful for investigating age-related differences in visual perception. The results could lead to further improvement of a wide range of visual materials destined for people of different ages.