Driving with homonymous visual field loss: Does visual search performance predict hazard detection? / Matthew Smith in The British Journal of Occupational Therapy, Volume 78 numéro 2 (Fébrier 2015)  

Public ISBD [article]  inThe British Journal of Occupational Therapy > Volume 78 numéro 2 (Fébrier 2015) . - p. 85-95 Titre : Driving with homonymous visual field loss: Does visual search performance predict hazard detection? Type de document : texte imprimé Auteurs : Matthew Smith, Auteur ; Callum D. Mole, Auteur ; Georgios K. Kountouriotis, Auteur Année de publication : 2015 Article en page(s) : p. 85-95 Langues : Anglais (eng) Mots-clés : Stroke  Hemianopia  Driving  Visual field  Visual search  Hazard detection  Reaction times  Compensation Résumé : Introduction Stroke often causes homonymous visual field loss, which can lead to exclusion from driving. Retention of a driving licence is sometimes possible by completing an on-road assessment, but this is not practical for all. It is important to find simple tests that can inform the assessment and rehabilitation of driving-related visual-motor function. Method We developed novel computerised assessments: visual search; simple reaction and decision reaction to appearing pedestrians; and pedestrian detection during simulated driving. We tested 12 patients with stroke (seven left, five right field loss) and 12 controls. Results The homonymous visual field defect group was split into adequately compensated or inadequately compensated groups based on visual search performance. The inadequately compensated group had problems with stimuli in their affected field: they tended to react more slowly than controls and in the driving task they failed to detect a number of pedestrians. In contrast, the adequately compensated group were better at detecting pedestrians, though reaction times were slightly slower than controls. Conclusion We suggest that our search task can predict, to a limited extent, whether a person with stroke compensates for visual field loss, and may potentially identify suitability for specific rehabilitation to promote return to driving. En ligne : http://bjo.sagepub.com/content/78/2.toc Permalink : ./index.php?lvl=notice_display&id=35927 [article] Driving with homonymous visual field loss: Does visual search performance predict hazard detection? [texte imprimé] / Matthew Smith, Auteur ; Callum D. Mole, Auteur ; Georgios K. Kountouriotis, Auteur . - 2015 . - p. 85-95. Langues : Anglais (eng) in The British Journal of Occupational Therapy > Volume 78 numéro 2 (Fébrier 2015) . - p. 85-95 Mots-clés : Stroke  Hemianopia  Driving  Visual field  Visual search  Hazard detection  Reaction times  Compensation Résumé : Introduction Stroke often causes homonymous visual field loss, which can lead to exclusion from driving. Retention of a driving licence is sometimes possible by completing an on-road assessment, but this is not practical for all. It is important to find simple tests that can inform the assessment and rehabilitation of driving-related visual-motor function. Method We developed novel computerised assessments: visual search; simple reaction and decision reaction to appearing pedestrians; and pedestrian detection during simulated driving. We tested 12 patients with stroke (seven left, five right field loss) and 12 controls. Results The homonymous visual field defect group was split into adequately compensated or inadequately compensated groups based on visual search performance. The inadequately compensated group had problems with stimuli in their affected field: they tended to react more slowly than controls and in the driving task they failed to detect a number of pedestrians. In contrast, the adequately compensated group were better at detecting pedestrians, though reaction times were slightly slower than controls. Conclusion We suggest that our search task can predict, to a limited extent, whether a person with stroke compensates for visual field loss, and may potentially identify suitability for specific rehabilitation to promote return to driving. En ligne : http://bjo.sagepub.com/content/78/2.toc Permalink : ./index.php?lvl=notice_display&id=35927

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