Binocular non-stereoscopic cues can deceive clinical tests of stereopsis - HAL Accéder directement au contenu
Article dans une revue Scientific Reports Année : 2019

Binocular non-stereoscopic cues can deceive clinical tests of stereopsis

Résumé

Stereoscopic vision plays a critical role in visual perception; however, it is difficult to assess. In clinical settings, stereoacuity is assessed with clinical stereotests. Observers can use monocular cues to deceive some of the most common stereotests, such as the Titmus test. The Randot test has been found free of monocular cues, and here we confirm that result by testing observers under monocular viewing. However, there is a common misconception that only monocular cues can be used to deceive stereotests. Here we demonstrate that binocular non-stereoscopic cues can also be used to pass the Randot, by testing participants with the test rotated, a condition that abolishes stereopsis, and comparing the performance to a monocular viewing condition. We also assessed the Random Dot Butterfly test and discovered considerable amounts of non-stereoscopic cues, including binocular cues in the Circles that can be used to deceive the test. Participants with amblyopia had more difficulty using non-stereoscopic cues than neurotypical observers. We gathered normal-viewing Randot stereoacuities for 110 participants (90 neurotypical and 20 with amblyopia) and compared them to psychophysical stereoacuities (our gold standard). The Randot test showed low positive normalized predictive values for detecting stereoblindness. It could perfectly detect stereo-impairment but with a low sensitivity.
Fichier principal
Vignette du fichier
s41598-019-42149-2.pdf ( 2.06 Mo ) Télécharger
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Loading...

Dates et versions

hal-03919241, version 1 (02-01-2023)

Identifiants

Citer

Adrien Chopin, Samantha Wenyan Chan, Bahia Guellai, Daphné Bavelier, Dennis Michael Levi. Binocular non-stereoscopic cues can deceive clinical tests of stereopsis. Scientific Reports, 2019, 9, pp.5789. ⟨10.1038/s41598-019-42149-2⟩. ⟨hal-03919241⟩
45 Consultations
8 Téléchargements
Dernière date de mise à jour le 26/06/2024
comment ces indicateurs sont-ils produits

Altmetric

Partager

Gmail Facebook Twitter LinkedIn Plus