title: Oculomotor behaviour in simultanagnosia: a longitudinal case study.
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.
authors: Perception & Eye Movement Laboratory, Department of Clinical Research, University of Berne, Inselspital, Freiburgstrasse 10, 3010 Berne, Switzerland. thomas.nyffeler@insel.ch
authors: Thomas
authors: T
authors: Nyffeler
authors: Tobias
authors: T
authors: Pflugshaupt
authors: Helene
authors: H
authors: Hofer
authors: Uli
authors: U
authors: Baas
authors: Klemens
authors: K
authors: Gutbrod
authors: Roman
authors: R
authors: von Wartburg
authors: Christian W
authors: CW
authors: Hess
authors: René M
authors: RM
authors: Müri
mesh_terms: D000377:Agnosia / Q000503:physiopathology*; D001288:Attention / Q000502:physiology*; D005106:Exploratory Behavior / Q000502:physiology; D005133:Eye Movements / Q000502:physiology*; D005260:Female; D007839:Functional Laterality; D006801:Humans; D000860:Hypoxia / Q000150:complications / Q000503:physiopathology; D008137:Longitudinal Studies; D008875:Middle Aged; D009483:Neuropsychological Tests; D020127:Recovery of Function; D013997:Time Factors; D014796:Visual Perception / Q000502:physiology*