Article (Scientific journals)
Detection of visual pursuit in patients in minimally conscious state: a matter of stimuli and visual plane?
Thonnard, Marie; Wannez, Sarah; Keen, Shannan et al.
2014In Brain Injury, 28 (9), p. 1164-70
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Keywords :
Behavioural assessment; disorders of consciousness; minimally conscious state; visual pursuit
Abstract :
[en] OBJECTIVES: The aim of this study was to determine whether the assessment of pursuit eye movements in patients in minimally conscious state (MCS) is influenced by the choice of the visual stimulus (study 1) and by the moving plane (study 2). METHODS: Patients with MCS (MCS- and MCS+) in the acute (<1 month post-injury) or chronic (>1 month) setting were assessed. The Coma Recovery Scale-Revised (CRS-R) procedure was used to test visual pursuit of a moving mirror, object and person (study 1, n = 88) and to test vertical and horizontal visual tracking (study 2, n = 94). RESULTS: Study 1: Patients with visual pursuit tracked preferentially the moving mirror over the moving person or object. Study 2: Patients displaying visual pursuit, especially in MCS- and in chronic setting, preferentially tracked on the horizontal rather than the vertical plane. CONCLUSION: The findings confirm the importance of using a mirror to assess visual pursuit in patients in MCS and of initiating testing using the horizontal plane, specifically in patients in MCS- and those in chronic setting. Assessment should then be done on the vertical plane if visual pursuit is not detected on the horizontal plane.
Disciplines :
Neurology
Author, co-author :
Thonnard, Marie 
Wannez, Sarah  ;  Université de Liège > Centre de recherches du cyclotron
Keen, Shannan
Brédart, Serge ;  Université de Liège > Département de Psychologie > Psychologie cognitive
Bruno, Marie-Aurélie ;  Université de Liège > Centre de recherches du cyclotron
Gosseries, Olivia  ;  Université de Liège > Centre de recherches du cyclotron
Demertzi, Athina  ;  Université de Liège > Centre de recherches du cyclotron
Thibaut, Aurore ;  Université de Liège > Centre de recherches du cyclotron
Chatelle, Camille ;  Université de Liège > Centre de recherches du cyclotron
Charland-Verville, Vanessa ;  Université de Liège > Centre de recherches du cyclotron
Heine, Lizette ;  Université de Liège > Centre de recherches du cyclotron
Habbal, Dina
Laureys, Steven  ;  Université de Liège > Centre de recherches du cyclotron
VANHAUDENHUYSE, Audrey  ;  Université de Liège - ULiège > Centre de recherches du cyclotron
More authors (4 more) Less
 These authors have contributed equally to this work.
Language :
English
Title :
Detection of visual pursuit in patients in minimally conscious state: a matter of stimuli and visual plane?
Publication date :
2014
Journal title :
Brain Injury
ISSN :
0269-9052
eISSN :
1362-301X
Publisher :
Taylor and Francis, Abingdon, United Kingdom
Volume :
28
Issue :
9
Pages :
1164-70
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 18 January 2016

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