Good recovery in visual scanning in a patient with persistent anosognosia

P. Zoccolotti, C. Guariglia, L. Pizzamiglio, A. Judica, C. Razzano, P. Pantano

Research output: Contribution to journalArticle

Abstract

A patient with hemineglect disturbance (N.G.) due to a right hemispheric lesion was admitted to rehabilitative training which featured the use of procedures devised in a previous study (Pizzamiglio et al., 1990) both in a standard way and with the addition of optokinetic stimulation. This latter paradigm produces an automatic reaction which favors the spatial orienting of the patient toward his (left) neglected side. N.G. showed good recovery in visual scanning and, by the end of training, reached a level of recovery similar to other neglect patients. However, his recovery was particularly slow and no change was observed in his attitude toward the visual disturbance. The conclusion is reached that recovery in visual scanning also can be obtained in patients with persistent anosognosic disturbances. Stimulations such as the optokinetic condition which influence patients' behavior at an automatic level may play an important role in this recovery. CBF studies obtained before and after training showed a CBF improvement mainly in the right temporoparietal regions, behind the lesion, and in the left frontal cortex. The implications of these findings on various theoretical interpretations of the hemineglect disturbance are briefly discussed.

Original languageEnglish
Pages (from-to)93-104
Number of pages12
JournalInternational Journal of Neuroscience
Volume63
Issue number1-2
DOIs
Publication statusPublished - 1992

Keywords

  • Anosognosia
  • Hemineglect
  • Recovery

ASJC Scopus subject areas

  • Neuroscience(all)

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