Overview
Atypical developpement of spatial cognition has been shown in congenital bindness with some consequences on mathematic learning (Cattaneo et al., 2010) as well as on the mental representation of spatial maps (Thinus-Blanc & Gaunet, 1997). This raises the issue of the role of vision in spatial abilities underlying mathematics and locomotion. These difficulties could also be found in case of partial visual deficiency, like very low visual acuity or large peripheral shrinkage of the visual field.
Eligibility
Inclusion Criteria:
For all :
- Aged 12 to 25
- Participant not opposed to the research and parents do not oppose participation in the protocol for minors
For healthy volunteers (normal sighted):
- with typical visual development with correction if needed
For participant with Visual Deficiencies:
- with congenital blindness
- or low visual acuity (between 1/10 and 3/10)
- or with visual field peripheral shrinkage (angle <20°).
Exclusion Criteria:
- General knowledge and working memory skills with a standard score of less than 4
- neurological medical history
- Person deprived of liberty by judicial or administrative decision
- Person subject to a legal protection measure (tutorship, curatorship)
