Generalization and Specificity of Visual Learning During Sleep
Brown University
Summary
A growing body of evidence suggests that sleep facilitates and is beneficial to perceptual learning. However, the underlying mechanism of this facilitatory action is largely unknown. One must know what type of processing occurs during sleep to clarify the mechanism of sleep facilitating perceptual learning. For this purpose, investigators will obtain highly localized spatio-temporal information about brain activation during sleep using magnetic resonance imaging (MRI) and polysomnography (PSG) measurement.
Description
The proposed study plans to collect pilot data for a study that investigates the role of sleep in the formation of feature and location specificity of VPL. Ten participants will be asked to do a visual task and nap inside the magnetic resonance imaging scanner with polysomnography. Investigators will collect data from 10 participants, which was determined by the power analysis based on the previously published data. Investigators will require each subject to attend six visits for six sessions. Session 1 includes the pretest of orientation detection, Session 2 orientation decoder construction…
Eligibility
- Age range
- 18–30 years
- Sex
- All
- Healthy volunteers
- No
Inclusion Criteria: * 18 - 30 years old * Normal or corrected to normal visual acuity Exclusion Criteria: * Self-report of visual and eye disorders (cataracts, age-related macular degeneration, diabetic retinopathy, glaucoma) * Drug use (psychoactive drugs, neuroleptic medications, prescription medications that might affect cognitive and motor performance) * History of sleep disorders (sleep apnea, insomnia) * Failure to meet the criteria on the visual acuity test * Magnetically or mechanically activated implants (such as cardiac pacemakers) * Clips on blood vessels in the brain * Use of an…
Interventions
- BehavioralVisual perceptual learning
Evaluation of the effect of visual training on cortical activity during sleep
Location
- Brown UniversityProvidence, Rhode Island