Localization of a Monocularly Presented Virtual Object with Delayed Visual Feedback

Observers adjusted a pointer to match the depicted distance of a monocular virtual object viewed in a see-through head-mounted display. Distance information was available through motion parallax produced as the observers rocked back and forth. The apparent stability of the virtual object was impaired by the time delay between the observers' head motions and the corresponding change in the object position on the display. Localizations were made for four time delays (31 ms, 64 ms, 131 ms, and 197 ms) and three depicted distances (75 cm, 95 cm, and 113 cm). The errors in localizations increased systematically with time delay and depicted distance.

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