The Giant Hand Illusion Experienced on a Simulator.

Abstract:

BACKGROUND:This paper discusses a special kind of a sensory illusion-the Giant Hand illusion-that was experienced during an exercise on a flight simulator equipped with a VR headset. In the first part we describe spatial disorientation and the function of the vestibular apparatus during flight and its consequences. In this part, the sensory illusion simulator used for the experiment is mentioned. In the second part we describe the simulator and test flight. In the third part we discuss data retrieved during simulator flights that are important for explaining the Giant Hand illusion. CASE REPORT:A well-trained pilot experienced the Giant Hand illusion while executing instrument flight rules flight on a simulator. The Giant Hand illusion was detected from the simulation data and confirmed by the pilot afterward. DISCUSSION:The Giant Hand illusion is a rare type of sensory illusion. The pilot falsely evaluated the situation as a malfunction of the aircraft controls. If the pilot had not been informed by the operator that he might have been influenced by the illusion, he would probably have crashed the simulated aircraft. An unrecognized Giant Hand illusion during a flight can lead to fatal consequences. This case report shows the symptoms and data that can be used for early recognition of this type of illusion.Frantis P, Petru A. The Giant Hand illusion experienced on a simulator. Aerosp Med Hum Perform. 2018; 89(6):557-562.

journal_name

Aerosp Med Hum Perform

authors

Frantis P,Petru A

doi

10.3357/AMHP.5008.2018

subject

Has Abstract

pub_date

2018-06-01 00:00:00

pages

557-562

issue

6

eissn

2375-6314

issn

2375-6322

journal_volume

89

pub_type

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