NCT05863715

Brief Summary

In this line of research, the researchers are examining a basic science question regarding the working memory representations underlying visual search using a positive template (looking for a target) or a negative template (avoiding a distractor).

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
34

participants targeted

Target at P25-P50 for not_applicable healthy

Timeline
Completed

Started Sep 2022

Shorter than P25 for not_applicable healthy

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 27, 2022

Completed
2 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 17, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 17, 2022

Completed
6 months until next milestone

First Submitted

Initial submission to the registry

May 3, 2023

Completed
15 days until next milestone

First Posted

Study publicly available on registry

May 18, 2023

Completed
Last Updated

May 18, 2023

Status Verified

May 1, 2023

Enrollment Period

2 months

First QC Date

May 3, 2023

Last Update Submit

May 16, 2023

Conditions

Healthy

Keywords

attentionvisual searchworking memory

Outcome Measures

Primary Outcomes (3)

  • 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

    Day 1 (single day of testing)

  • Button Press Accuracy

    Accuracy of responses to target item-measure whether the participants presses the correct button which corresponds to the target shape presented on the computer screen or the incorrect button

    Day 1 (single day of testing)

  • Working Memory Report Quality

    Accuracy of computer clicks on a set of colors to indicate memory of cue presented

    Day 1 (single day of testing)

Study Arms (1)

Within-subjects Cue Type

EXPERIMENTAL

Participants receive a target color cue (positive), a distractor color cue (negative), or a neutral non-informative cue prior to visual search.

Behavioral: Visual Search Cue Type

Interventions

Visual Search Cue TypeBEHAVIORAL

Participants receive a target color cue (positive), a distractor color cue (negative), or a neutral non-informative cue prior to visual search.

Within-subjects Cue Type

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

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

Contact the study team to confirm eligibility.

Sponsors & Collaborators

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
Model Details: All participants receive each level of visual cue type.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 3, 2023

First Posted

May 18, 2023

Study Start

September 27, 2022

Primary Completion

November 17, 2022

Study Completion

November 17, 2022

Last Updated

May 18, 2023

Record last verified: 2023-05

Data Sharing

IPD Sharing
Will share

The researchers plan to share anonymized subject data on Open Science Framework.

Shared Documents
STUDY PROTOCOL, SAP
Time Frame
Upon publication.
Access Criteria
Open Science Framework internet access.

Locations

US(1)