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NCT06733467 · ClinicalTrials.gov registry record · NA
Probing the Role of Feature Dimension Maps in Visual Cognition: Impact of Working Memory Maintenance (Expt 2.3)
A NA study, sponsored by University of California, Santa Barbara.
- Completed
- Registry status
- NA
- Development phase
- 10
- Enrollment target
NCT06733467 is a NA study that has completed, run by University of California, Santa Barbara. The registered enrollment target is 10 participants.
The verdict
NCT06733467, a NA study, has completed, sponsored by University of California, Santa Barbara.
- COMPLETED
- Registry status
- NA
- Development phase
- 10 participants
- Enrollment target
Study Summary
How does one know what to look at in a scene? Imagine a "Where's Waldo" game - it's challenging to find Waldo because there are many 'salient' locations in the picture, each vying for one's attention. One can only attend to a small location on the picture at a given moment, so to find Waldo, one needs to direct their attention to different locations. One prominent theory about how one accomplishes this claims that important locations are identified based on distinct feature types (for example, motion or color), with locations most unique compared to the background most likely to be attended. An important component of this theory is that individual feature dimensions (again, color or motion) are computed within their own 'feature maps', which are thought to be implemented in specific brain regions. However, whether and how specific brain regions contribute to these feature maps, along with their role in supporting memory of visual information over brief delays, remains unknown. The goal of this study is to determine how brain regions that respond strongly to different feature types (color and motion) and which encode spatial locations of visual stimuli contribute to memory of visual features. Based on previous studies, the investigators hypothesize that feature-selective brain regions act as neural feature dimension maps, and thus encode representations of relevant location(s) based on their preferred feature dimension, such that the stimulus representation in the most relevant feature map is maintained over a memory delay period to support adaptive behavior. The investigators will scan healthy human participants using functional MRI (fMRI) in a repeated-measures design while they view and remember different features of visual stimuli (e.g., color or motion). The investigators will employ state-of-the-art multivariate analysis techniques that allow them to reconstruct an 'image' of the stimulus representation encoded by each brain region to dissect how neural tissue
Interventions
- OTHER Stimulus properties: remembered feature
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 10 participants |
| Start Date | 2023-04-16 |
| Est. Completion | 2025-02-05 |
| Phase | NA |
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Full Details on ClinicalTrials.gov ↗What the Registry Record Tells You About NCT06733467
The ClinicalTrials.gov registry entry for NCT06733467 describes a study currently listed as completed, categorized as NA. The registered enrollment target is 10 participants, a figure that helps gauge the scale of data the investigators plan to collect. The listed sponsor is University of California, Santa Barbara, which has 7 total studies on file at ClinicalTrials.gov.
The record links to 0 conditions, and to 1 intervention - of which Stimulus properties: remembered feature is the first listed.
NCT06733467 reports 0 study locations.
Frequently Asked Questions
What is clinical trial NCT06733467 about?
NCT06733467 is a clinical study titled "Probing the Role of Feature Dimension Maps in Visual Cognition: Impact of Working Memory Maintenance (Expt 2.3)". How does one know what to look at in a scene? Imagine a "Where's Waldo" game - it's challenging to find Waldo because there are many 'salient' locations in the picture, each vying for one's attention. One can only attend to a small location on the picture at a given moment, so to find Waldo, one nee...
What is the current status of trial NCT06733467?
This trial is currently completed. It is a NA study. The enrollment target is 10 participants. The study started on 2023-04-16. Estimated completion is 2025-02-05.
What interventions are being tested in trial NCT06733467?
The interventions under investigation include: Stimulus properties: remembered feature (OTHER).
Who is sponsoring clinical trial NCT06733467?
This trial is sponsored by University of California, Santa Barbara, which has 7 total clinical trials registered on ClinicalTrials.gov.
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