8 février 2011
Olivier Pascalis présentera "Peripheral vision in profoundly deaf adults and children: Is vision altered by deafness?"
- Intervenant : Olivier Pascalis
- Laboratoire : LPNC
- Date prévue : 8 février 2011 à 13h
- Lieu : salle 106, 1er étage, bâtiment BSHM
- Titre : Peripheral vision in profoundly deaf adults and children: Is vision altered by deafness?
- Abstract :
Early perceptual deprivation is known to induce neural reorganization by way of adaptation to the altered sensory experience. Performance in visual peripheral tasks can also be enhanced with training, like in video game players.
We used Goldmann kinetic perimetry to compare how training and congenital auditory deprivation may affect the size of the visual field. We measured the ability of action video game players and deaf observers to detect small moving lights at various locations in the central (around 30deg from fixation) and peripheral (around 60deg) visual fields. Overall, we found that deafness increases peripheral vision.
We were also interested in the development of peripheral vision in profoundly deaf children without cochlear implantation from 5 to 15 years of age. Whereas deaf children (aged 5-10 years) showed reduced ability to detect and accurately report dim stimuli in the far periphery compared to hearing, 13-15 year-old deaf demonstrated better accuracy.
http://www.grenoblecognition.fr/index.php?option=com_content&view=article&id=62:les-sourds-congenitaux-ont-une-meilleure-vision-peripherique-que-les-entendants&catid=3:communiques&Itemid=21