Modern Views on Visual Attention Mechanisms
The results of our psychophysical tests by eye movement recording and the following stages of research have been considered. Several groups of the known findings in this area were determined, namely: (i) unresolved objectives; (ii) contradictory data; (iii) findings which propose revision of some views; (iv) similar findings obtained in different research centers. The most important results of our psychophysical tests are as follows: (a) bimodal distribution of fixation duration during joint presentation of target objects and distractors; (b) dynamical formation of target images creates conditions for dosed change of perceptual load; (c) decrease of fixation duration and increase of saccade amplitude during the last test stage when volunteer makes the decision about completion of the current visual task; (d) structure of viewing scan path, fixation density and duration, probability of return fixations are specific for each human during viewing of the affective images; (e) return fixations are arranged with reference to areas of interest on image; (f) spatial distribution of fixation duration, velocity and amplitude of saccades are significantly different between tests of viewing of 2D images and navigation in 3D environment. Using of the obtained results in realistic mathematical models of visual attention has been discussed.
KeywordsVisual attention Eye movements 2D images 3D environment Individual peculiarities of viewing Return fixations
The work is supported in part by projects of Ministry of education and science of RF No 2.955.2017/4.6 and No 6.5961.2017/8.9.
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