Relevance and Salience During Attention Task

NCT05784233 | Completed

• 1 other identifier: 5R15EY030247-01A1
• Study Type: interventional
• Target: 117
• Locations: 1 country
• Sites: 1

Brief Summary

In this line of research, the researchers are examining the influence of relevance of a salient item on task performance, depending on overall task set.

Conditions

Healthy

Keywords

attention; visual search

Outcome Measures

Primary Outcomes (2)

• Button Press Reaction Time

  Speed to respond correctly to the target- after participant finds the target shape on a computer screen, they press a button to indicate what shape they see

  During Testing (single day)

• Button Press Accuracy

  Accuracy of responses to target item- the researchers will measure whether the participants presses the correct button which corresponds to the target shape presented on the computer screen or the incorrect button

  During Testing (single day)

Study Arms (5)

0% Relevance

EXPERIMENTAL

0% chance of the salient item being the target during visual search task.

Behavioral: Relevance (Likelihood Salient Item is Target)

25% Relevance

EXPERIMENTAL

25% chance of the salient item being the target during visual search task.

Behavioral: Relevance (Likelihood Salient Item is Target)

50% Relevance

EXPERIMENTAL

50% chance of the salient item being the target during visual search task.

Behavioral: Relevance (Likelihood Salient Item is Target)

75% Relevance

EXPERIMENTAL

75% chance of the salient item being the target during visual search task.

Behavioral: Relevance (Likelihood Salient Item is Target)

100% Relevance

EXPERIMENTAL

100% chance of the salient item being the target during visual search task.

Behavioral: Relevance (Likelihood Salient Item is Target)

Interventions

Relevance (Likelihood Salient Item is Target) BEHAVIORAL

The proportion of trials, when the salient visual item is present in the array, where the salient item is the search target.

0% Relevance; 100% Relevance; 25% Relevance; 50% Relevance; 75% Relevance

Eligibility Criteria

• Age: 18 Years - 99 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• normal or corrected to normal visual acuity, normal color vision

Sponsors & Collaborators

• Lehigh University: lead

Study Sites (1)

Lehigh University

Bethlehem, Pennsylvania, 18015, United States

Location

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: BASIC SCIENCE
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Model Details: All participants receive each level of task (easy singleton detection task, hard feature search task) and salient item presence (present, absent during search). Groups differ based on the likelihood of the salient item being the search target when present(0%-100%, in 25% increments).

Study Record Dates

• First Submitted: March 13, 2023
• First Posted: March 24, 2023
• Study Start: September 15, 2022
• Primary Completion: October 28, 2022
• Study Completion: October 28, 2022
• Last Updated: February 2, 2024

Record last verified: 2024-02

Data Sharing

• IPD Sharing: Will share
• Shared Documents: STUDY PROTOCOL
• Time Frame: Upon publication.
• Access Criteria: Open Science Framework, Internet access.

Locations

US (1)