Vibrotactile assistance for user guidance towards selection targets in VR and the cognitive resources involved

摘要

Current head-mounted displays (HMDs) provide a large binocular field of view (FOV) for natural interaction in virtual environments (VEs). However, the selection of objects located in the periphery and outside the FOV requires visual search by head rotations, which can reduce the performance of interaction in virtual reality (VR). This technote explores the use of a pair of self-made wireless and wearable devices, which once attached to both hemispheres of the user's head provide assistive vibrotactile cues for guidance in order to reduce the time used to turn and locate a target object. We present an experiment based on a dual-tasking method to analyze cognitive demands and performance metrics during a set of selection tasks followed by a working memory task.