Direction decoding of physical and visual perturbations from EEG

It has been shown that perturbation evoked potentials could be decoded from rest electroencephalographic (EEG) signals. In this study, we investigated the neural responses of right and left perturbations in two different situations. Two types of sensorimotor perturbation consisted of visual field rotation (visual perturbation) and mediolateral pull at the waist (physical perturbation). Our results suggested that direction of perturbation can be distinguished in physical perturbation with high accuracy in single trials. No promising result was observed in differentiating the direction of perturbation in visual tasks. The findings of our study offer new possibilities in using human machine interface to compensate the imbalance events.