HealthyNCT05633238
SSVEP and Distractor Processing During Visual Search
A study testing Visual Search Information Type (target or distractor information) in people with Healthy, run by Lehigh University at 1 site in United States.
Trial summary
In this line of research, the researchers are utilizing an EEG measure of repeated visual stimulation, the Steady-State Visually Evoked Potential (SSVEP) to examine processing of target and distractor information during visual search. This is a basic science study. Read more about this study
- Who is it for?
- Ages 18 to 35 yearsHealthy volunteers can take part
- Conditions the study is for
- Healthy
- What is being tested?
- Visual Search Information Type (target or distractor information)
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 50 participants
- Where
- 1 siteUnited States
- Study dates
- 15 Oct 2021to 15 May 2025
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 35 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- normal or corrected to normal visual acuity, normal color vision
Who cannot join
- history of neurological disorders
Trial locations and contacts
1 site in 1 country.
About this study
Official title: SSVEP and Distractor Processing During Visual Search in Healthy Adults
In this line of research, the researchers are utilizing an EEG measure of repeated visual stimulation, the Steady-State Visually Evoked Potential (SSVEP) to examine processing of target and distractor information during visual search. This is a basic science study.
Read the detailed description
The researchers are interested in how the brain responds to target and distractor information during visual search. The researchers will manipulate the information available to the research participants, and measure research participants brain responses to information matching target or distractor features utilizing an EEG measure of repeated visual stimulation, the Steady-State Visually Evoked Potential (SSVEP).
- Conditions
- Healthy
- Being tested
- Visual Search Information Type (target or distractor information)
- Keywords
- attention, visual search
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Visual Search Information Type (target or distractor information)Behavioural
Participants will have information about targets, distractors, or neither in different blocks of the intervention.
| Study group | Role | What they receive |
|---|---|---|
| Within-Subjects Attentional Information | Experimental | Within-Subjects, all participants receive all interventions Receives: Behavioral: Visual Search Information Type (target or distractor information) |
What is being measured
The primary outcome is the main question the study is designed to answer.
Steady-State Visually Evoked Response (SSVEP)
Brain response to visual stimuli flashing at a pre-defined frequency
Measured: One day (during testing)
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
Measured: 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
Measured: One day (during testing)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted1 Dec 2022
- Study start15 Oct 2021
- Primary completion15 Nov 2024 (estimated)
- Study completion15 May 2025 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for HealthyStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Basic science
- Allocation
- Not applicable
- Intervention model
- Single group
- Model description
- All participants receive each level of visual information (target or distractor)
- Masking
- None (open label)
- Enrolment
- 50 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Lehigh University
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Nancy Carlisle, PhD, Principal investigator, Lehigh University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05633238
- Sponsor's protocol ID
- 3R15EY030247-01A1
- Status last verified
- Oct 2023
- First submitted
- 7 Nov 2022
- Last updated
- 27 Sep 2024
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: The researchers plan to share anonymized subject data on Open Science Framework.
Study at a glance
From the registry record, last updated by the sponsor on 27 Sep 2024. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- SSVEP and Distractor Processing During Visual Search in Healthy Adults
- ClinicalTrials.gov ID
- NCT05633238
- Acronym / sponsor ID
- 3R15EY030247-01A1
- Conditions
- Healthy
- Keywords
- attention, visual search
- Study type
- Interventional
- Recruitment status
- Unknown status
- Enrolment
- 50 participants (estimated)
- Lead sponsor
- Lehigh UniversityUniversity, hospital or other
- Study start
- 15 Oct 2021 (actual)
- Primary completion
- 15 Nov 2024 (estimated)
- Study completion
- 15 May 2025 (estimated)
- First posted
- 1 Dec 2022 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
In this line of research, the researchers are utilizing an EEG measure of repeated visual stimulation, the Steady-State Visually Evoked Potential (SSVEP) to examine processing of target and distractor information during visual search. This is a basic science study.
Detailed description
The researchers are interested in how the brain responds to target and distractor information during visual search. The researchers will manipulate the information available to the research participants, and measure research participants brain responses to information matching target or distractor features utilizing an EEG measure of repeated visual stimulation, the Steady-State Visually Evoked Potential (SSVEP).
Study design
- Primary purpose
- Basic science
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
- Model description
- All participants receive each level of visual information (target or distractor)
| Arm | Type | Receives |
|---|---|---|
| Within-Subjects Attentional Information | Experimental | Behavioral: Visual Search Information Type (target or distractor information)Within-Subjects, all participants receive all interventions |
Who may qualify
- Ages
- 18 to 35 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (1 listed)
- normal or corrected to normal visual acuity, normal color vision
Key exclusion criteria (1 listed)
- history of neurological disorders
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Visual Search Information Type (target or distractor information)Participants will have information about targets, distractors, or neither in different blocks of the intervention. | Behavioural | Within-Subjects Attentional Information |
Primary outcome
Steady-State Visually Evoked Response (SSVEP)
Time frame: One day (during testing)
Brain response to visual stimuli flashing at a pre-defined frequency
Button Press Reaction Time
Time frame: One day (during testing)
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: One day (during testing)
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
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 27 Sep 2024.
- Individual participant dataSharing planned: Yes. The researchers plan to share anonymized subject data on Open Science Framework.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Nancy Carlisle, PhD principal investigator
Lehigh University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Visual Search Information Type (target or distractor information) in people with Healthy, run by Lehigh University at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: status not confirmed, as of the sponsor's last update on 27 Sep 2024. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Steady-State Visually Evoked Response (SSVEP) (time frame: One day (during testing)). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Sep 2024.