Abstract
Augmented Reality uses Head Mounted Displays (HMD) to overlay the real word with additional virtual information. Virtual Retinal Displays (VRD), a new display technology, no longer need Liquid Crystal Displays (LCD). The VRD technology addresses the retina directly with a single laser stream of pixels. Empirical studies concerning the user’s informational strain of this new VRD technology are unknown. Various papers have shown, that the Heart Rate Variability (HRV) is a valid indicator for the user’s informational strain. An empirical test revealed no difference in the user’s HRV between the VRD technology and the LCD technology. Consequently, there seems to be an comparable users informational strain regarding the display types.
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