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OpenTrials
Completed

NCT Number: NCT05958888

Visual Attention to Text and Pictorial Food Labels: An Eye Tracking Experiment

The goal of this study is to examine attention elicited by icon, text-only, and control front-of-package food labels. The study also aims to explore whether English language proficiency moderates the impact of icon vs. text-only labels on attention.

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Key information

Conditions

Health Behavior Behavior

Age range

18 year–99 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

University of North Carolina Chapel Hill

Chapel Hill, North Carolina, 27599, United States

About this study

In this study, participants will attend one in-person visit, lasting approximately 15 minutes after signing informed consent. First participants will complete an eye tracking task where their attention to study stimuli is measured objectively via an eye tracker (i.e., eye tracking task). The eye tracking task will take ~5 minutes. Then, participants will complete a brief ~10 minute self-administered survey on a computer.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Adult aged 18 or older
  • Self-identifies as Hispanic or Latino

Exclusion criteria

  • Less than 18 years old
  • Does not identify as Hispanic or Latino
  • Has one of the following conditions: (Wears bifocals, glaucoma, permanently dilated pupils, eye implants [artificial lenses, not contact lenses], less than 2 eyes, or blindness)

Treatment and study plan

Text only sodium label

Behavioral

"Warning: High in sodium." is shown in a black square label on the can of soup.

Icon sodium label

Behavioral

"Warning: High in sodium." is shown beneath a yellow triangle icon with an exclamation mark all in a black square label on the can of soup.

Pictorial sodium label

Behavioral

"Warning: High in sodium." is shown beneath an image of a spilled salt shaker, all in a black square label on the can of soup.

Barcode label

Behavioral

Barcode is shown in white square label on the can of soup

Primary outcomes

  1. Amount of Time Spent Looking at the Front-of-package Sodium Label (i.e., Dwell Time)

    Time frame: During ~5-minute eye tracking task, as part of a one-time study visit lasting ~30 minutes

    This outcome will be measured using eye tracking technology.

Secondary outcomes

  1. Number of Times Looking at the Front-of-package Sodium Label (i.e., Fixation Count)

    Time frame: During ~5-minute eye tracking task, as part of a one-time study visit lasting ~30 minutes

    This outcome will be measured using eye tracking technology.

  2. Time to First Fixation on the Front-of-package Sodium Label

    Time frame: During ~5-minute eye tracking task, as part of a one-time study visit lasting ~30 minutes

    This outcome will be measured using eye tracking technology.

  3. Dwell Time on "Natural" Claim

    Time frame: During ~5-minute eye tracking task, as part of a one-time study visit lasting ~30 minutes

    This outcome will be measured using eye tracking technology.

  4. Self-reported Attention to the Front-of-package Sodium Label

    Time frame: During ~10 minute online survey, as part of one-time study visit lasting ~30 minutes

    Assessed with 1 item for each label type. Response options will range from 1 to 5. Higher scores indicate more attention.

  5. Perceived Message Effectiveness of the Front-of-package Sodium Label

    Time frame: During ~10 minute online survey, as part of one-time study visit lasting ~30 minutes

    Assessed with 3 items for each label type. Response options will range from 1 to 5. Higher scores indicate greater perceived message effectiveness.

  6. Understandability of Front-of-package Sodium Label

    Time frame: During ~10 minute online survey, as part of one-time study visit lasting ~30 minutes

    1 item for each label type. Response options will range from 1 to 5. Higher scores indicate more understandability.

Sponsors and collaborators

Lead sponsor

University of North Carolina, Chapel Hill

Other

Collaborators

  • National Heart, Lung, and Blood Institute (NHLBI)

Registry information

Important dates

Study start
2023
Primary completion
2023
Study completion
2023
First posted
Jul 25, 2023
Registry last updated
Aug 13, 2024

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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