Human-computer interaction method, human-computer interaction device and storage medium

Abstract

The embodiment of the invention provides a human-computer interaction method, a human-computer interaction device and a storage medium, and the method comprises the steps: displaying a human-computer interaction interface which comprises at least one operation command display area and at least one visual stimulation area, at least one visual stimulation region in the at least one visual stimulation region comprises at least two visual stimulation sub-regions, and any visual stimulation sub-region in the at least two visual stimulation sub-regions is asymmetric about a horizontal axis or a longitudinal axis of a coordinate system; and executing an operation command, the operation command being determined according to an electroencephalogram signal of a user, and the electroencephalogram signal of the user being generated by the user aiming at a stimulation signal displayed by the at least one visual stimulation area. According to the method and the device, the brain visual cortex generates asymmetric characteristics of the electroencephalogram signals at the spatial position of visual stimulation, so that the decoding accuracy and the decoding efficiency are improved.

Description

technical field [0001] The present application relates to the technical field of human-computer interaction, and in particular to a human-computer interaction method, a human-computer interaction device, and a storage medium. Background technique [0002] Brain-Computer Interface (BCI) is a new type of human-computer interaction based on neuroscience and engineering technology, which can establish a direct connection between the human brain and computers or other electronic devices by acquiring and analyzing brain signals in real time. communication and control channels that directly translate central nervous system activity into information output. [0003] In the BCI system based on EEG technology, the paradigm of evoking by visual stimulation is widely used, among which SSVEP-BCI based on Steady-State Visual Evoked Potential (SSVEP) is the most typical. It induces pattern changes in the neural electrical activity of the cerebral cortex by the user's gaze at a visual stim...

AI Technical Summary

Problems solved by technology

When the number of operating commands supported at the same time is large (for example: multiple commands are displayed on the menu at the same time, a large number of different character keys are displayed on the virtual keyboard at the same time, multiple operable virtual objects are displayed in the VR and AR field of view at the same time, etc.), to achieve Supporting multiple commands with the shortest possible recognition time and the highest possible correct recognition rate, there are great challenges in adopting existing technologies

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