Impact of age-related macular degeneration on object searches in realistic panoramic scenes

Thibaut, Miguel; Tran, Thi-Ha-Chau; Szaffarczyk, Sébastien; Boucart, Muriel

Document type :

Article dans une revue scientifique

DOI :

10.1111/cxo.12644

PMID :

29171100

Permalink :

http://hdl.handle.net/20.500.12210/4023

Title :

Impact of age-related macular degeneration on object searches in realistic panoramic scenes

Author(s) :

Thibaut, Miguel [Auteur]
Tran, Thi-Ha-Chau [Auteur]
Szaffarczyk, Sébastien [Auteur]
Boucart, Muriel [Auteur]

Sciences Cognitives et Sciences Affectives (SCALab) - UMR 9193
Laboratoire Sciences Cognitives et Sciences Affectives - UMR 9193 [SCALab]

Journal title :

Clinical & Experimental Optometry

Abbreviated title :

Clin Exp Optom

Publication date :

2017-11-23

ISSN :

1444-0938

HAL domain(s) :

Sciences cognitives

English abstract : [en]

BACKGROUND: This study investigated whether realistic immersive conditions with dynamic indoor scenes presented on a large, hemispheric panoramic screen covering 180° of the visual field improved the visual search abilities ...
Show more >BACKGROUND: This study investigated whether realistic immersive conditions with dynamic indoor scenes presented on a large, hemispheric panoramic screen covering 180° of the visual field improved the visual search abilities of participants with age-related macular degeneration (AMD). METHOD: Twenty-one participants with AMD, 16 age-matched controls and 16 young observers were included. Realistic indoor scenes were presented on a panoramic five metre diameter screen. Twelve different objects were used as targets. The participants were asked to search for a target object, shown on paper before each trial, within a room composed of various objects. A joystick was used for navigation within the scene views. A target object was present in 24 trials and absent in 24 trials. The percentage of correct detection of the target, the percentage of false alarms (that is, the detection of the target when it was absent), the number of scene views explored and the search time were measured. RESULTS: The search time was slower for participants with AMD than for the age-matched controls, who in turn were slower than the young participants. The participants with AMD were able to accomplish the task with a performance of 75 per cent correct detections. This was slightly lower than older controls (79.2 per cent) while young controls were at ceiling (91.7 per cent). Errors were mainly due to false alarms resulting from confusion between the target object and another object present in the scene in the target-absent trials. CONCLUSION: The outcomes of the present study indicate that, under realistic conditions, although slower than age-matched, normally sighted controls, participants with AMD were able to accomplish visual searches of objects with high accuracy.Show less >

Language :

Anglais

Audience :

Non spécifiée

Administrative institution(s) :

Université de Lille
CNRS
CHU Lille

Collections :

Sciences Cognitives et Sciences Affectives (SCALab) - UMR 9193

Research team(s) :

Équipe Action, Vision et Apprentissage (AVA)

Submission date :

2019-02-13T14:18:03Z
2019-11-12T15:39:22Z

Version	Link	Modification date
2	20.500.12210/4023*	2019-11-12T15:36:59Z
1	20.500.12210/4023.1	2019-02-13T14:18:03Z

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Impact of age-related macular degeneration ...

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