Oculomotor behaviour in simultanagnosia: a longitudinal case study.

Thomas Nyffeler; Tobias Pflugshaupt; Helene Hofer; Uli Baas; Klemens Gutbrod; Roman von Wartburg; Christian W Hess; René M Müri

doi:10.1016/j.neuropsychologia.2005.01.011

PubMed · 16009241

Oculomotor behaviour in simultanagnosia: a longitudinal case study.

Thomas Nyffeler·Tobias Pflugshaupt·Helene Hofer·Uli Baas·Klemens Gutbrod·Roman von Wartburg·Christian W Hess·René M Müri

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Abstract

The aim of the present single case study was to investigate oculomotor recovery in a patient with simultanagnosia due to biparietal hypoxic lesions. Applying visual exploration as well as basic oculomotor tasks in three consecutive test sessions--i.e. 8 weeks, 14 weeks, and 37 weeks after brain damage had occurred--differential recovery was observed. While visual exploration remarkably improved, an impaired disengagement of attention persisted. The improvement of exploration behaviour is interpreted within an oculomotor network theory and implications for a deficit-specific recovery from simultanagnosia are discussed.

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Agnosia Attention Exploratory Behavior Eye Movements Female Functional Laterality Humans Hypoxia Longitudinal Studies Middle Aged Neuropsychological Tests Recovery of Function Time Factors Visual Perception Case Reports Comparative Study Journal Article

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Thomas Nyffeler, Tobias Pflugshaupt, Helene Hofer, Uli Baas, Klemens Gutbrod, Roman von Wartburg, Christian W Hess, René M Müri. 2005-02-25. Oculomotor behaviour in simultanagnosia: a longitudinal case study.. https://doi.org/10.1016/j.neuropsychologia.2005.01.011

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