Brief Title: Project 4 Example: Mixed Hybrid Checklist

NCT05272163 | Completed

• 1 other identifier: 2007P000646-C
• Study Type: interventional
• Target: 12
• Locations: 1 country
• Sites: 1

Brief Summary

In "Mixed Hybrid Search", participants look for 3 specific target (e.g. this boot, this cat, this hat) and 3 categorical items (ANY fruit, ANY car, ANY game). In this task, participants tend to miss many categorical items. This is analogous to radiologists missing "incidental findings" when reading medical images. In this experiment, participants were given a checklist to help them to find categorical targets.

Conditions

Incidental Findings; Visual Attention; Visual Search; Hybrid Search

Keywords

visual perception; BESH; visual search; errors

Outcome Measures

Primary Outcomes (2)

• Accuracy

  Did the Participant get the right answer?

  Within 1 hour

• Response Time (RT)

  How long did it take to respond on each trial?

  Within 1 hour

Study Arms (1)

Main Experiment

EXPERIMENTAL

This is a single arm study where all participants are tested on 1-2 hours of visual search.

Behavioral: Stimulus Type; Behavioral: Target Presence; Behavioral: Checklist

Interventions

Stimulus Type BEHAVIORAL

Targets can be specific or categorical

Main Experiment

Target Presence BEHAVIORAL

There is or is not a target present on each trial

Main Experiment

Checklist BEHAVIORAL

In fact, there is a checklist on every trial but these results will be compared to a non-checklist condition from another experiment

Main Experiment

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• All welcome to enroll

You may not qualify if:

• excluded if Participant fails Ishihara color vision test
• excluded if Participant has acuity worse than 20/25 with correction

Sponsors & Collaborators

• Brigham and Women's Hospital: lead

Study Sites (1)

Visual Attention Lab / Brigham and Women's Hospital

Boston, Massachusetts, 02215, United States

Location

MeSH Terms

Interventions

Checklist

Intervention Hierarchy (Ancestors)

Data Collection; Health Care Evaluation Mechanisms; Quality of Health Care; Health Care Quality, Access, and Evaluation

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NA
• Masking: NONE
• Masking Details: Participants are blind to the purposes of the experiment but know about the manipulations of the conditions.
• Purpose: BASIC SCIENCE
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Professor

Study Record Dates

• First Submitted: February 18, 2022
• First Posted: March 9, 2022
• Study Start: January 17, 2018
• Primary Completion: January 1, 2024
• Study Completion: January 1, 2024
• Last Updated: February 19, 2025

Record last verified: 2025-02

Data Sharing

• IPD Sharing: Will share
• Shared Documents: STUDY PROTOCOL, ICF
• Time Frame: All materials will be available whenever requested.
• Access Criteria: Any reasonable request will be honored. NOTE: The URL does reach our OSF page, successfully.

Locations

US (1)