Pure topographical disorientation in novel environments without anterograde amnesia: a case study

Yuka Oishi, Tatsushi Yamakawa, Hikaru Nagasawa, Kyoko Suzuki

Research output: Contribution to journalArticle

Abstract

Topographical disorientation (TD) in novel environments is considered to be a part of anterograde amnesia. A 56-year-old woman presented with pure TD only in novel environments following limbic encephalitis. She could not remember directions inside the hospital on weekly outpatient visits; however, her verbal and visual anterograde memories were normal. In the test of learning photographs of scenes, faces, and objects, only her scores for landscapes were worse than those in healthy controls. These findings suggested that her TD specific to landscapes and directions in novel environments was caused by category-specific memory impairment related to bilateral hippocampal and parahippocampal dysfunction.

Original languageEnglish
Pages (from-to)177-186
Number of pages10
JournalNeurocase
Volume25
Issue number5
DOIs
Publication statusPublished - 2019 Sep 3

Keywords

  • Topographical disorientation
  • directional disorientation
  • hippocampal gyrus
  • landmark agnosia
  • parahippocampal gyrus

ASJC Scopus subject areas

  • Arts and Humanities (miscellaneous)
  • Clinical Neurology

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