Allocentric spatial neglect with posterior cortical atrophy

Eduardo M. Zilli, Kenneth M. Heilman

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

Patients with posterior cortical atrophy (PCA) have been reported to have neglect in the egocentric/ body-centered reference frame. This report describes a woman with PCA who had a right-sided stimulus-based form of allocentric visual neglect on cancellation, reading, and drawing tests. Her brain imaging revealed left parietal atrophy. The pathophysiology of this disorder may be related to an impairment of the ventral “what” stream’s ability to interact with the dorsal “where” stream that mediates the allocation of spatial attention, or a deficit in the systems that allocate contralateral focal attention. Further research is needed to better understand the mechanisms of this disorder and to optimally treat it.

Original languageEnglish (US)
Pages (from-to)190-197
Number of pages8
JournalNeurocase
Volume21
Issue number2
DOIs
StatePublished - Mar 4 2015
Externally publishedYes

Keywords

  • allocentric neglect
  • egocentric neglect
  • focal and global attention
  • posterior cortical atrophy
  • visual processing systems

ASJC Scopus subject areas

  • Arts and Humanities (miscellaneous)
  • Clinical Neurology

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