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Related Experiment Videos

Topographical disorientation: a synthesis and taxonomy.

G K Aguirre1, M D'Esposito

  • 1Department of Neurology, Hospital of the University of Pennsylvania, Philadelphia, USA. aguirreg@mail.med.upenn.edu

Brain : a Journal of Neurology
|September 1, 1999
PubMed
Summary

This review proposes a taxonomy for topographical disorientation, a condition where patients lose their ability to navigate. Different brain damage patterns correlate with distinct spatial disorientation deficits.

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Area of Science:

  • Neuroscience
  • Environmental Psychology
  • Cognitive Science

Background:

  • Topographical disorientation (TD) is characterized by the inability to navigate familiar or unfamiliar environments.
  • Previous literature includes numerous case reports but lacks a unified classification system.
  • Normative way-finding models from environmental psychology and neuroscience inform the understanding of spatial cognition.

Purpose of the Study:

  • To create a taxonomy of topographical disorientation based on behavioral impairments and neuroanatomical findings.
  • To classify different varieties of TD resulting from damage to distinct brain regions.
  • To reconcile conflicting claims in previous reviews of TD literature.

Main Methods:

  • Systematic review of case reports on topographical disorientation.

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  • Analysis of behavioral impairments and associated neuroanatomical damage.
  • Integration of findings with established models of spatial navigation and neuroimaging data.

    • Main Results:

    • Several distinct subtypes of topographical disorientation are proposed.
    • Specific neuroanatomical correlates are identified for each proposed subtype.
    • Patient behavioral deficits align with the functional roles of implicated cortical regions.

    Conclusions:

    • A structured taxonomy can accurately classify topographical disorientation.
    • Distinct brain lesions lead to specific spatial navigation deficits.
    • This classification aids in understanding the neurobiology of way-finding.