Visual Sensitivity in Newborns Clinical Trial
Official title:
Exploring the Visual Sensitivity for Topological Properties in Newborn Infants
| NCT number | NCT01330537 |
| Other study ID # | DMR100-IRB-019 |
| Secondary ID | |
| Status | Completed |
| Phase | |
| First received | |
| Last updated | |
| Start date | April 2011 |
| Est. completion date | March 2013 |
| Verified date | January 2021 |
| Source | China Medical University Hospital |
| Contact | n/a |
| Is FDA regulated | No |
| Health authority | |
| Study type | Observational |
The topological perception theory proposed a precise description for how one organizes the visual world that eliminates the vagueness of subjective phenomenology. In addition, the topological theory challenges the dominant computational view on the part-to-whole hierarchy of visual information processing. Lines of evidence from adult psychophysics, brain imaging data, and even honeybee's behavior have supported the notion that the global topological properties are the very primitives of visual representation. However, the question of how the sensitivity to topological properties originates during development has not been explored much. In a previous study, the investigators found that 2- to 6 month old infants could reliably discriminate stimuli based on topological differences, but failed to do so based on geometric differences. Using familiarization/novelty preference procedure, the present study intends to explore the visual sensitivity for topological properties in newborn infants. Experiment 1 focuses on whether neonates can discriminate a disk (no hole) and a ring (with a hole) that are topologically different, and/or a disk (no hole) and a triangle (no hole) that are geometrically different. Experiment 2 focuses on whether neonates can detect a change in the number of holes and/or the size of the hole. If newborn infants are only sensitive to topological properties and not to geometric properties, this will be a strong proof for the claim that topological property is the very "primitive" visual representation at empirical as well as theoretical level.
| Status | Completed |
| Enrollment | 80 |
| Est. completion date | March 2013 |
| Est. primary completion date | February 2013 |
| Accepts healthy volunteers | Accepts Healthy Volunteers |
| Gender | All |
| Age group | N/A to 14 Days |
| Eligibility | Inclusion Criteria: - full-term and healthy newborns Exclusion Criteria: - Eye illnesses or other physical problems |
| Country | Name | City | State |
|---|---|---|---|
| Taiwan | China Medical University | Taichung |
| Lead Sponsor | Collaborator |
|---|---|
| China Medical University Hospital |
Taiwan,