Relevance and Salience During Attention Task

• Sponsor: Lehigh University (Other)
• Overall Status: Enrolling by invitation
• CT.gov ID: NCT05784233
• Collaborator: (none)
• Enrollment: 120
• Location: 1
• Arms: 5
• Anticipated Duration (Months): 9.5
• Patients Per Site Per Month: 12.7

Study Details

Study Description

Brief Summary

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

Condition or Disease	Intervention/Treatment	Phase
Healthy	Behavioral: Relevance (Likelihood Salient Item is Target)	N/A

Detailed Description

When finding a target item during visual search (looking for a pencil), a salient item can capture attention (your phone flashing from a message). Typical attention studies only examine salient items when shown as distractor during search, to ensure any attention to the items are driven by salience alone. However, the impact of salience may interact with the relevance of the item for the search task (e.g. how likely the salient item is to be the target). Here, we investigate these interactions in a basic science study when participants perform an easy task or a difficult search task.

Study Design

• Study Type: Interventional
• Anticipated Enrollment: 120 participants
• Allocation: Randomized
• Intervention Model: Parallel Assignment
• Intervention Model Description: 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).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).
• Masking: None (Open Label)
• Primary Purpose: Basic Science
• Official Title: Relevance and Salience During Attention Task
• Actual Study Start Date: Sep 15, 2022
• Anticipated Primary Completion Date: Jun 15, 2023
• Anticipated Study Completion Date: Jun 30, 2023

Arms and Interventions

Arm	Intervention/Treatment
Experimental: 0% Relevance 0% chance of the salient item being the target during visual search task.	Behavioral: Relevance (Likelihood Salient Item is Target); The proportion of trials, when the salient visual item is present in the array, where the salient item is the search target.
Experimental: 25% Relevance 25% chance of the salient item being the target during visual search task.	Behavioral: Relevance (Likelihood Salient Item is Target); The proportion of trials, when the salient visual item is present in the array, where the salient item is the search target.
Experimental: 50% Relevance 50% chance of the salient item being the target during visual search task.	Behavioral: Relevance (Likelihood Salient Item is Target); The proportion of trials, when the salient visual item is present in the array, where the salient item is the search target.
Experimental: 75% Relevance 75% chance of the salient item being the target during visual search task.	Behavioral: Relevance (Likelihood Salient Item is Target); The proportion of trials, when the salient visual item is present in the array, where the salient item is the search target.
Experimental: 100% Relevance 100% chance of the salient item being the target during visual search task.	Behavioral: Relevance (Likelihood Salient Item is Target); The proportion of trials, when the salient visual item is present in the array, where the salient item is the search target.

Outcome Measures

Primary Outcome Measures

1. Button Press Reaction Time [During Testing (single day)]

   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

2. Button Press Accuracy [During Testing (single day)]

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

Eligibility Criteria

Criteria

• Ages Eligible for Study: 18 Years to 99 Years
• Sexes Eligible for Study: All
• Accepts Healthy Volunteers: Yes

Inclusion Criteria:

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

Exclusion Criteria:

Contacts and Locations

Locations

	Site	City	State	Country	Postal Code
1	Lehigh University	Bethlehem	Pennsylvania	United States	18015

Sponsors and Collaborators

• Lehigh University

Investigators

None specified.

Study Documents (Full-Text)

None provided.

More Information

Publications

None provided.

• Responsible Party: Lehigh University
• ClinicalTrials.gov Identifier: NCT05784233
• Other Study ID Numbers: 5R15EY030247-01A1
• First Posted: Mar 24, 2023
• Last Update Posted: Mar 24, 2023
• Last Verified: Mar 1, 2023

• Individual Participant Data (IPD) Sharing Statement: Yes
• Plan to Share IPD: Yes
• Studies a U.S. FDA-regulated Drug Product: No
• Studies a U.S. FDA-regulated Device Product: No
• Keywords provided by Lehigh University: attention; visual search

Study Results

No Results Posted as of Mar 24, 2023