HYBRID VISUAL SEARCH FOR VISUAL TARGET PURPOSE
Hybrid visual search is a kind of visual search, which is characterized by the presence of several desired targets for the observer in the conditions of various and unique non-target objects. This article is devoted to the study of hybrid visual search through changes in the parameter of the amount of information processed in the visual working memory. In this experiment, the amount of active working visual memory is changed by variation of amount of visually displayed objects to search. The study was performed by eye tracker in the laboratory. The main psychophysiological indicator analyzed is the average duration of fixation of a look at non-target objects (distractors), as well as the total time of image analysis, expressed in ms. The objects for the search are the photos of various real objects (animals, household objects, clothing, etc.) on a white background with a fixed number of objects in each sample. According to the results obtained, with the increase in information in the working visual memory, the time of gaze fixation on each object increases. These results clearly demonstrate the change in the basic indicators of time for a hybrid visual search in these conditions, with a constant number and nature of the stimuli. That way, it is a clear demonstration of the active involvement of the processes occurring in memory in a visual search.