A 3-year follow-up study of 'orientation agnosia'

Naomi Fujinaga, Taro Muramatsu, Misao Ogano, Motoichiro Kato

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Dissociation between the ability to recognize misoriented objects and to determine their orientation has been reported in a small number of patients, but the long-term course of this deficit has not been reported so far. Here, we describe the case of a 32-year-old female who had bilateral occipito-temporal damage caused by a cerebrovascular accident. Neuropsychological assessment performed at 6 months after the occurrence of the cerebrovascular accident revealed that she was almost generally agnostic for object orientation. The patient was then re-tested 3 years later, when she showed apparently striking recovery in her ability to determine object orientation. However, closer examination revealed that she still displayed the same impairment, although at this time, it was only for objects presented in non-cardinal angles. Moreover, she had problems mostly discriminating orientations that differed by small amounts. The ability of patients to discriminate a variety of orientations should be further tested in future investigations in this field.

Original languageEnglish
Pages (from-to)1222-1226
Number of pages5
JournalNeuropsychologia
Volume43
Issue number8
DOIs
Publication statusPublished - 2005 Jan 1

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Keywords

  • Brain damage
  • Human
  • Visual recognition

ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Cognitive Neuroscience
  • Behavioral Neuroscience

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