An interventional study of Experimental: Within-Subjects Attentional Information in Healthy, sponsored by Lehigh University. Completed at 1 site in United States. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-10-22.
Sponsored by Lehigh University · Not applicable, Interventional, and Basic science
In this line of research, the researchers having participants engage in task switching between tasks which require a positive (target) template, negative (distractor) template, or neutral (non-informative) template to the cognitive control factors associated with each template type during visual search. This is a basic science study.
The researchers will have participants engage in task switching between tasks which require a positive (target) template, negative (distractor) template, or neutral (non-informative) template to the cognitive control factors associated with each template type during visual search. Looking for impacts of task switching helps to identify the components of the cognitive control system that overlap between different types of attentional templates. This is a basic science study.
Lehigh University is the lead sponsor of 16 studies on the registry; 5 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
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Within-Subjects, all participants receive all interventions
Behavioral: Experimental: Within-Subjects Attentional Information
Visual Search Information Type (target or distractor information) Participants will have information about targets, distractors, or neither in different trials of the intervention.
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
Time frame: One day (during testing)
Button Press Accuracy
Accuracy of responses to target item (% correct)- 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
Time frame: One day (during testing)
Lehigh University, normal or corrected to normal visual acuity and normal color vision
| Milestone | Within-Subjects Attentional Information |
|---|---|
| Started | 27 |
| Completed | 26 |
| Not completed | 1 |
| Withdrew: Fire alarm during testing session, incomplete testing | 1 |
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
| Seconds | Within-Subjects Attentional Information |
|---|---|
| Positive cue: repeat cue meaning, repeat cue color | 1.68 ± .03 |
| Positive cue: repeat cue meaning, change cue color | 1.69 ± .03 |
| Positive cue: Change Meaning, repeat color | 1.76 ± .04 |
| Positive cue: cue meaning change, cue color change | 1.77 ± .04 |
| Negative cue: repeat cue meaning, repeat cue color | 1.93 ± .03 |
| Negative cue: repeat cue meaning, change cue color | 1.97 ± .03 |
| Negative cue: Change Meaning, repeat color | 1.78 ± .03 |
| Negative cue: cue meaning change, cue color change | 1.88 ± .03 |
Accuracy of responses to target item (% correct)- 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
| proportion correct | Within-Subjects Attentional Information |
|---|---|
| Positive cue: repeat cue meaning, repeat cue color | .912 ± .008 |
| Positive cue: repeat cue meaning, change cue color | .926 ± .017 |
| Positive cue: Change Meaning, repeat color | .875 ± .014 |
| Positive cue: cue meaning change, cue color change | .852 ± .014 |
| Negative cue: repeat cue meaning, repeat cue color | .843 ± .017 |
| Negative cue: repeat cue meaning, change cue color | .819 ± .022 |
| Negative cue: Change Meaning, repeat color | .873 ± .016 |
| Negative cue: cue meaning change, cue color change | .835 ± .016 |
Collected over Day of testing. Non-serious events are listed at a 0% frequency threshold.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| Within-Subjects Attentional Information | 0/27 (0%) | 0/27 (0%) | 0/27 (0%) |
| Age, Categorical(Participants) | Within-Subjects Attentional Information |
|---|---|
| <=18 years | 0 |
| Between 18 and 65 years | 27 |
| >=65 years | 0 |
| Age, Continuous(years) | Within-Subjects Attentional Information |
|---|---|
| Mean | 19.07 ± 1.11 |
| Sex: Female, Male(Participants) | Within-Subjects Attentional Information |
|---|---|
| Female | 15 |
| Male | 12 |
| Race and Ethnicity Not Collected(Participants) | Within-Subjects Attentional Information |
|---|
| Region of Enrollment(participants) | Within-Subjects Attentional Information |
|---|---|
| United States | 27 |
Documents are hosted by the registry — open the source record to download them.
Plan to share: Yes — The researchers plan to share anonymized subject data on Open Science Framework.
Supporting information: Study protocol, Sap
This study is completed, as verified in Oct 2024. You cannot join it, but the record below documents what was studied.
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Lehigh University