SSVEP and Distractor Processing During Visual Search

NCT05633238 | Unknown

• 1 other identifier: 3R15EY030247-01A1
• Study Type: interventional
• Target: 50
• Locations: 1 country
• Sites: 1

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.

Conditions

Healthy

Keywords

attention; visual search

Outcome Measures

Primary Outcomes (3)

• Steady-State Visually Evoked Response (SSVEP)

  Brain response to visual stimuli flashing at a pre-defined frequency

  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

  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

  One day (during testing)

Study Arms (1)

Within-Subjects Attentional Information

EXPERIMENTAL

Within-Subjects, all participants receive all interventions

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

Interventions

Visual Search Information Type (target or distractor information) BEHAVIORAL

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

Within-Subjects Attentional Information

Eligibility Criteria

• Age: 18 Years - 35 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

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

You may not qualify if:

• history of neurological disorders

Sponsors & Collaborators

• Lehigh University: lead

Study Sites (1)

Lehigh University

Bethlehem, Pennsylvania, 18015, United States

Location

Study Officials

• Nancy Carlisle, PhD

  Lehigh University

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NA
• Masking: NONE
• Purpose: BASIC SCIENCE
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

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

Study Record Dates

• First Submitted: November 7, 2022
• First Posted: December 1, 2022
• Study Start: October 15, 2021
• Primary Completion: November 15, 2024
• Study Completion: May 15, 2025
• Last Updated: September 27, 2024

Record last verified: 2023-10

Data Sharing

• IPD Sharing: Will share
• Shared Documents: STUDY PROTOCOL, SAP
• Time Frame: Upon publication.
• Access Criteria: Open Science Framework internet access.

Locations

US (1)