Relevance and Salience During Attention Task

Not Applicable

Completed

• Conditions: Healthy
• Interventions: Behavioral: Relevance (Likelihood Salient Item is Target)

• Registration Number: NCT05784233
• Lead Sponsor: Lehigh University

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.

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, the researchers investigate these interactions in a basic science study when participants perform an easy task or a difficult search task.

Study Timeline

• Study Start: 2022-09-15
• Primary Completion: 2022-10-28
• Study Completion: 2022-10-28
• Study First Submitted: 2023-03-13
• Study First Submitted QC: 2023-03-13
• Study First Posted: 2023-03-24
• Status Verified: 2024-02
• Last Update Submitted: 2024-02-01
• Last Update Posted: 2024-02-02

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 117

Inclusion Criteria

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

Exclusion Criteria

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
0% Relevance	Relevance (Likelihood Salient Item is Target)	0% chance of the salient item being the target during visual search task.
25% Relevance	Relevance (Likelihood Salient Item is Target)	25% chance of the salient item being the target during visual search task.
50% Relevance	Relevance (Likelihood Salient Item is Target)	50% chance of the salient item being the target during visual search task.
100% Relevance	Relevance (Likelihood Salient Item is Target)	100% chance of the salient item being the target during visual search task.
75% Relevance	Relevance (Likelihood Salient Item is Target)	75% chance of the salient item being the target during visual search task.

Primary Outcome Measures

Name	Time	Method
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
Button Press Accuracy	During Testing (single day)	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

Trial Locations

Locations (1)

Lehigh University; 🇺🇸 Bethlehem, Pennsylvania, United States