Individual and typological features of motor memory in problems of control of ergacy systems in the absence of visual feedback

Abstract

The purpose of the study was to determine the impact of the presence of visual feedback on the quality of user experience with a number of human-computer interfaces, as well as the process of mastering the interfaces. As a result of the work, the features of the generation of control commands by operators of ergatic systems using an oculographic interface, interfaces for controlling hand movements and head movements were assessed. In the absence of visual feedback, users relied on motor memory formed during the learning process, and in the case of head control, on data from the vestibular analyzer. The presence of visual feedback was found to be important for accurate command generation in all cases. However, when controlling the head and eyes, the presence of visual feedback led to a greater deviation from the ideal trajectory and an increase in the distance that the cursor traveled before reaching the goal. Localization of the target position did not have a significant effect on the performance of the operator interface, regardless of the presence of visual feedback. Analysis of typical reactions in all experiments made it possible to identify three types of control, differing for eye and head movements, but not for hand movements in the ergatic system mode. Types 1 and 2 exhibited more errors compared to type 3, and the number of errors varied between them, especially for hand control. The results obtained can be used in the development of promising interfaces for ergatic systems, including the determination of the necessary visual feedback components for this class of technical devices.