Mar 27, 2020

Testing Navigation in Real Space: Contributions to Understanding the Physiology and Pathology of Human Navigation Control

Frontiers in Neural Circuits
Florian SchöberlThomas Brandt

Abstract

Successful navigation relies on the flexible and appropriate use of metric representations of space or topological knowledge of the environment. Spatial dimensions (2D vs. 3D), spatial scales (vista-scale vs. large-scale environments) and the abundance of visual landmarks critically affect navigation performance and behavior in healthy human subjects. Virtual reality (VR)-based navigation paradigms in stationary position have given insight into the major navigational strategies, namely egocentric (body-centered) and allocentric (world-centered), and the cerebral control of navigation. However, VR approaches are biased towards optic flow and visual landmark processing. This major limitation can be overcome to some extent by increasingly immersive and realistic VR set-ups (including large-screen projections, eye tracking and use of head-mounted camera systems). However, the highly immersive VR settings are difficult to apply particularly to older subjects and patients with neurological disorders because of cybersickness and difficulties with learning and conducting the tasks. Therefore, a need for the development of novel spatial tasks in real space exists, which allows a synchronous analysis of navigational behavior, strategy, v...Continue Reading

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Mentioned in this Paper

Eye
Spatial Design
Brain
Learning
Spatial Projection
Anatomical Landmark
Study
Healthy Volunteers
Patterns
Research Subject

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