Study on Visual Search Behavior

This study is looking at how people find things visually. Researchers want to understand if there are differences in how you search when you do the same task many times in a row (called "Blocked Trials") compared to when you switch between different search tasks (called "Mixed Trials"). You would be asked to complete four different search tasks. The main goal is to measure how quickly you respond (Response Time) to these tasks. We are looking for 40 healthy adults, aged 18 and older, who have good vision and can pass a color vision test. You cannot participate if you have vision worse than 20/25 with correction or a history of nerve or vision problems. The study's status is currently unclear.

Study design
This is an interventional study with 40 participants. It compares two behavioral interventions: Mixed trials and Blocked trials.
What's involved
Not specified in the trial record.
Compensation
Not stated in the trial record.
Follow-up
Your response time will be measured throughout the study, which is expected to last an average of one year.

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NCT06933693

Mixed Vs Blocked Search: Four Unique Tasks

Recruiting
NAAges 18+InterventionalBasic science
Brigham and Women's Hospital
~40 participants
Updated 2026-08-19 on ClinicalTrials.gov
What's tested:Mixed trialsBlocked Trials

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Response Time (RT)
Measured over Through study completion, an average of one year
Vision
Healthy
Attention
1 sites across 1 states
Massachusetts1
  • Jeremy M Wolfe, PhD · PRINCIPAL_INVESTIGATOR · Brigham and Women's Hospital

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Eligibility criteria

Inclusion

Pass Ishihara color vision test

Exclusion

vision less than 20/25 with correction
history of neuromuscular or visual disorders
  • Response Time (RT)Through study completion, an average of one year

    How long it takes to respond that the target is present or absent.