Exploration of the Role of Vision on Spatial Cognition (SpatioCog)

Civil Hospices of Lyon

Status: Enrolling

Conditions: Visual Deficiencies

Treatments: Other: WISC V Arithmetic subtest; Other: Proprioceptive spatial representation tasks; Other: Mental imagery task; Other: METRIC COMPARISON Tasks : Classic PVSE test; Other: METRIC COMPARISON Tasks : Tactile PVSE test; Other: WISC V Similarity and Span Test; Other: Tasks assessing number sense based on relative positions or lengths

Study type: Observational

Funder types: Other

Identifiers

NCT06088797

69HCL23_0361

Details and patient eligibility

About

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.

Enrollment: 100 estimated patients

Sex: All

Ages: 12 to 25 years old

Volunteers: Accepts Healthy Volunteers

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)

Trial design

100 participants in 4 patient groups

healthy subjects

Description:

First time :WISC V 40 minutes Second time :Completion of the 4 experimental tasks 105 minutes

Treatment:

Other: Proprioceptive spatial representation tasks

Other: Mental imagery task

Other: METRIC COMPARISON Tasks : Classic PVSE test

Other: WISC V Arithmetic subtest

Other: Tasks assessing number sense based on relative positions or lengths

Other: METRIC COMPARISON Tasks : Tactile PVSE test

Other: WISC V Similarity and Span Test

blind

Description:

First time :WISC V 40 minutes Second time :Completion of the 4 experimental tasks 105 minutes

Treatment:

Other: Proprioceptive spatial representation tasks

Other: Mental imagery task

Other: WISC V Arithmetic subtest

Other: Tasks assessing number sense based on relative positions or lengths

Other: METRIC COMPARISON Tasks : Tactile PVSE test

Other: WISC V Similarity and Span Test

low visual acuity

Description:

First time :WISC V 40 minutes Second time :Completion of the 4 experimental tasks 105 minutes

Treatment:

Other: Proprioceptive spatial representation tasks

Other: Mental imagery task

Other: METRIC COMPARISON Tasks : Classic PVSE test

Other: WISC V Arithmetic subtest

Other: Tasks assessing number sense based on relative positions or lengths

Other: METRIC COMPARISON Tasks : Tactile PVSE test

Other: WISC V Similarity and Span Test

reduced visual field

Description:

First time :WISC V 40 minutes Second time :Completion of the 4 experimental tasks 105 minutes

Treatment:

Other: Proprioceptive spatial representation tasks

Other: Mental imagery task

Other: METRIC COMPARISON Tasks : Classic PVSE test

Other: WISC V Arithmetic subtest

Other: Tasks assessing number sense based on relative positions or lengths

Other: METRIC COMPARISON Tasks : Tactile PVSE test

Other: WISC V Similarity and Span Test