not applicable ( the study only involves healthy adults) not applicable
Conditions
Interventions
visual recognition
crowding
filling-in
fMRI
Sponsors
Universitair Medisch Centrum Groningen
Eligibility
Age
18 Years to 64 Years
Inclusion criteria
Inclusion criteria: Age: *18 years Right-handed Normal or corrected to normal eyesight Healthy Written informed consent
Exclusion criteria
Exclusion criteria: 1. MR incompatible implants 2. Neurological disorders current and/or past 3. Claustrophobia 4. Current ophtalmic or psychiatric disorder 5. The wish not to be informed in case of a possible brain abnormality that could be detected during the experiment. 6. (suspected) pregnancy 7. Tattoos containing red pigments 8. Use of medication that can influence task results
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The main study parameters are the behavioural performance on visual tests and the cortical activation (commonly referred to as the BOLD response) associated with processing visual information. | — |
Secondary
| Measure | Time frame |
|---|---|
| Eye-movements will be analysed in order to control the fixation of the observers and to define the observer's eye-movement patern. Furthemore behavioral data will be used threshold measurement and to determine whether observers can detect and identify a stimulus. | — |
Countries
The Netherlands
Outcome results
None listed