Browse Definitions :
Definition

simulator sickness

Contributor(s): Matthew Haughn

Simulator sickness is a form of motion sickness linked to interaction with a simulated environment. It can be caused, for example, by discrepancies between the simulated motion in a simulator and the user's perception or expectation of motion. The phenomenon is often observed in users training with flight simulators and is also associated with video gaming.

The symptoms of simulator sickness include lethargy, nausea, vomiting, sweating, headaches, uneasiness, drowsiness, disorientation and ocular motor disturbances. Individuals are affected by simulator sickness to varying degrees and may experience different symptoms. Like virtual reality (VR) sickness, simulator sickness differs from motion sickness in that only visually perceived movement is required to cause its symptoms, although some simulators do include a moving cockpit. Differences between control input to reaction, between simulator movement and vehicle movement, and between tracking motion on screens as opposed to real life all contribute to simulator sickness. Another causal factor is an individual’s postural instability in dealing with perceived and actual simulator movement.  

The resemblance of looking around in a simulator compared to a real life experience allows the technology to convince the human brain that the represented environment is real. That capacity is also provided by augmented reality (AR) and VR environments. In both types of simulated experiences, small discrepancies in movement, lag and changes of frame rates remain. These differences can cause side effects similar to physical motion sickness. Head tracking lag and lower refresh rates on screens, in particular, can contribute to virtual reality sickness, resulting in disorientation, headaches and nausea.  

Due to its long-standing use of simulators for training, the United States Navy is considered an authority on simulation and simulator sickness. The US Navy created the Simulator Sickness Questionnaire, which gathers and ranks different symptoms. The questionnaire makes for a more subjective ranking of degrees of simulator sickness. To reduce simulator sickness, it can help to reduce training times to 20-minute stints.

Many users of simulators experience the symptoms less under continuous regular exposure over time. In fact, more hours of real-world piloting has been found to be a predicting factor for the occurrence of simulator sickness. Real-world pilots often experience symptoms, while those with less or no real flight experience are not as likely to feel ill from simulations.

Watch an introductory video about simulator sickness:

This was last updated in May 2017

Continue Reading About simulator sickness

Join the conversation

1 comment

Send me notifications when other members comment.

Please create a username to comment.

Have you ever experienced simulator sickness?
Cancel

-ADS BY GOOGLE

File Extensions and File Formats

SearchCompliance

  • compliance audit

    A compliance audit is a comprehensive review of an organization's adherence to regulatory guidelines.

  • regulatory compliance

    Regulatory compliance is an organization's adherence to laws, regulations, guidelines and specifications relevant to its business...

  • Whistleblower Protection Act

    The Whistleblower Protection Act of 1989 is a law that protects federal government employees in the United States from ...

SearchSecurity

  • RSA algorithm (Rivest-Shamir-Adleman)

    The RSA algorithm is the basis of a cryptosystem -- a suite of cryptographic algorithms that are used for specific security ...

  • remote access

    Remote access is the ability to access a computer or a network remotely through a network connection.

  • IP Spoofing

    IP spoofing is the crafting of Internet Protocol (IP) packets with a source IP address that has been modified to impersonate ...

SearchHealthIT

SearchDisasterRecovery

  • virtual disaster recovery

    Virtual disaster recovery is a type of DR that typically involves replication and allows a user to fail over to virtualized ...

  • tabletop exercise (TTX)

    A tabletop exercise (TTX) is a disaster preparedness activity that takes participants through the process of dealing with a ...

  • risk mitigation

    Risk mitigation is a strategy to prepare for and lessen the effects of threats faced by a data center.

SearchStorage

  • enterprise storage

    Enterprise storage is a centralized repository for business information that provides common data management, protection and data...

  • disk array

    A disk array, also called a storage array, is a data storage system used for block-based storage, file-based storage or object ...

  • optical storage

    Optical storage is any storage type in which data is written and read with a laser. Typically, data is written to optical media, ...

Close