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Human spatial navigation: Representations across dimensions and scales.

Arne D Ekstrom1, Eve A Isham1

  • 1Center For Neuroscience, Dept. of Psychology, University of California, Davis, 1544 Newton Ct., Davis, CA 95616. Center for Mind and Brain, Dept. of Psychology, 267 Cousteau Place, Davis, CA 95618.

Current Opinion in Behavioral Sciences
|November 14, 2017
PubMed
Summary
This summary is machine-generated.

Humans use allocentric, egocentric, and beacon navigation strategies. Our high-resolution visual system influences these strategies across different spatial dimensions and scales, enabling flexible and parallel use.

Keywords:
Spatial navigationallocentricegocentricelectrophysiologyfMRIhippocampuslesionneurophysiologynon-human primateparahipopcampal cortexplace cellretrosplenial cortexrodentvirtual reality

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Area of Science:

  • Cognitive Neuroscience
  • Spatial Cognition
  • Human Navigation

Background:

  • Human spatial navigation relies on fundamental strategies: allocentric, egocentric, and beacon.
  • The human visual system plays a critical role in shaping these navigation strategies.

Purpose of the Study:

  • To review the three fundamental forms of navigation strategies.
  • To examine the contribution of the high-resolution visual system to navigation properties.
  • To explore the application of allocentric and egocentric representations across different spatial dimensions and scales.

Main Methods:

  • Literature review of spatial navigation strategies.
  • Analysis of the role of visual acuity in navigation.
  • Consideration of spatial dimensions (1-D vs. 2-D) and scales (vista vs. environmental spaces).

Main Results:

  • The high-resolution visual system uniquely influences allocentric, egocentric, and beacon navigation.
  • Spatial representations are employed differently across 1-D and 2-D dimensions.
  • Navigation strategies are adapted based on the scale of the environment.

Conclusions:

  • Human spatial navigation is characterized by the parallel and flexible use of allocentric and egocentric representations.
  • The interplay between visual system capabilities, spatial dimensions, and environmental scale defines human navigation.