SSVEP and Distractor Processing During Visual Search

Sponsor

Lehigh University (Other)

Overall Status

Enrolling by invitation

CT.gov ID

NCT05633238

Collaborator

(none)

Enrollment

Location

Arm

Anticipated Duration (Months)

2.5

Patients Per Site Per Month

Study Details

Study Description

Brief 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.

Condition or Disease	Intervention/Treatment	Phase
Healthy	Behavioral: Visual Search Information Type (target or distractor information)	N/A

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

Study Type:

Interventional

Anticipated Enrollment :

50 participants

Allocation:

N/A

Intervention Model:

Single Group Assignment

Intervention Model Description:

All participants receive each level of visual information (target or distractor)All participants receive each level of visual information (target or distractor)

Masking:

None (Open Label)

Primary Purpose:

Basic Science

Official Title:

SSVEP and Distractor Processing During Visual Search in Healthy Adults

Actual Study Start Date :

Oct 15, 2021

Anticipated Primary Completion Date :

Jun 7, 2023

Anticipated Study Completion Date :

Jun 15, 2023

Arms and Interventions

Arm	Intervention/Treatment
Experimental: Within-Subjects Attentional Information Within-Subjects, all participants receive all interventions	Behavioral: Visual Search Information Type (target or distractor information) Participants will have information about targets, distractors, or neither in different blocks of the intervention.

Arm

Intervention/Treatment

Experimental: Within-Subjects Attentional Information

Within-Subjects, all participants receive all interventions

Behavioral: Visual Search Information Type (target or distractor information)

Participants will have information about targets, distractors, or neither in different blocks of the intervention.

Outcome Measures

Primary Outcome Measures

Steady-State Visually Evoked Response (SSVEP) [One day (during testing)]
Brain response to visual stimuli flashing at a pre-defined frequency
Button Press Reaction Time [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 [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

Eligibility Criteria

Criteria

Ages Eligible for Study:

18 Years to 35 Years

Sexes Eligible for Study:

All

Accepts Healthy Volunteers:

Yes

Inclusion Criteria:

normal or corrected to normal visual acuity, normal color vision

Exclusion Criteria:

history of neurological disorders

Contacts and Locations

Locations

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

Sponsors and Collaborators

Lehigh University

Investigators

Principal Investigator: Nancy Carlisle, PhD, Lehigh University

Study Documents (Full-Text)

None provided.

More Information

Publications

None provided.

Responsible Party:

Lehigh University

ClinicalTrials.gov Identifier:

NCT05633238

Other Study ID Numbers:

3R15EY030247-01A1

First Posted:

Dec 1, 2022

Last Update Posted:

Dec 1, 2022

Last Verified:

Nov 1, 2022

Individual Participant Data (IPD) Sharing Statement:

Yes

Plan to Share IPD:

Yes

Studies a U.S. FDA-regulated Drug Product:

Studies a U.S. FDA-regulated Device Product:

Keywords provided by Lehigh University

attention

visual search

Study Results

No Results Posted as of Dec 1, 2022