Relevance and Salience During Attention Task
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Sponsor
- Lehigh University
- Enrollment
- 117
- Locations
- 1
- Primary Endpoint
- Button Press Reaction Time
Study Overview
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 Design
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Parallel
- Primary Purpose
- Basic Science
- Masking
- None
Eligibility Criteria
- Ages
- 18 Years to 99 Years (Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- Yes
Inclusion Criteria
- •normal or corrected to normal visual acuity, normal color vision
Exclusion Criteria
- Not provided
Arms & Interventions
0% Relevance
0% chance of the salient item being the target during visual search task.
Intervention: Relevance (Likelihood Salient Item is Target) (Behavioral)
25% Relevance
25% chance of the salient item being the target during visual search task.
Intervention: Relevance (Likelihood Salient Item is Target) (Behavioral)
50% Relevance
50% chance of the salient item being the target during visual search task.
Intervention: Relevance (Likelihood Salient Item is Target) (Behavioral)
75% Relevance
75% chance of the salient item being the target during visual search task.
Intervention: Relevance (Likelihood Salient Item is Target) (Behavioral)
100% Relevance
100% chance of the salient item being the target during visual search task.
Intervention: Relevance (Likelihood Salient Item is Target) (Behavioral)
Outcomes
Primary Outcomes
Button Press Reaction Time
Time Frame: 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
Time Frame: 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
Secondary Outcomes
No secondary outcomes reported
