๐Ÿ›๏ธ Verified NIH Record โ€ข Updated 2026-08-18

Mixed Vs Blocked Search: Four Unique Tasks (NCT06933693)

Prevalence Effects in Visual Search: Theoretical and Practical Implications

๐ŸŸข Recruiting Observational / Diagnostic ๐Ÿง  Behavioral & Psychological Program Sponsor: Brigham and Women's Hospital

๐Ÿฉบ Plain-English Summary (8th-Grade Level)

The goal is to look for qualitative differences in visual search behavior when one search is performed many times in a row compared to when multiple search tasks are intermixed. Four search tasks are tested. In the Mixed condition, the four tasks are randomly changed from trial to trial. In the Blocked condition, each task is run as a block of 100 trials.

Who can join: Review the eligibility criteria below.

Location: Brigham & Women's Hospital โ€” Boston, Massachusetts

Age range: 18 Years

๐Ÿงช Interventions in This Study

  • Mixed trials (BEHAVIORAL)
  • Blocked Trials (BEHAVIORAL)

๐Ÿ“‹ "Do I Qualify?" โ€” 1-Minute Self Screener

Instant Checklist

Full eligibility criteria are available on the official NIH protocol. View the criteria โ†—

๐Ÿ“ All Participating Trial Locations (1 Sites)

  • Brigham & Women's Hospital โ€” Boston, Massachusetts

๐Ÿ“ž Contact the Study Coordinator

Phone: (617) 851-1166

Email: jwolfe@bwh.harvard.edu

Coordinator details come directly from the registered NIH protocol. Confirm the study is still recruiting before traveling.

๐Ÿ’ฐ Cost, Insurance & Patient Rights

  • 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
  • Routine Patient Care: Under federal law (ACA ยง 2709) and many state statutes, routine care costs are covered during participation.
  • Voluntary Participation: You may withdraw at any time without affecting your standard medical care.

Explore by condition: All Vision clinical trials

๐Ÿ’ก How to Participate

  1. Check the checklist above to see if you may qualify.
  2. Contact the study coordinator using the phone/email above.
  3. Ask about the visit schedule, what is covered at no cost, and any travel support.
  4. Confirm with your own doctor before making a decision.
๐Ÿ›๏ธ View Official NIH Record โ†—