Responses to Message Source and Presentation Using Psychophysiology

Not Applicable

Completed

• Conditions: Vaping

• Registration Number: NCT06269003
• Lead Sponsor: University of Massachusetts, Worcester

Brief Summary

The goal of this clinical trial is to use psychophysiological methods to test the effects of a message source (expert and peer) and message presentation types (one-sided and two-sided) to identify the optimal message type for young adults who vape and do not vape.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2024-01-17
• Study Start: 2024-02-08
• Study First Submitted QC: 2024-02-16
• Study First Posted: 2024-02-21
• Status Verified: 2024-06
• Primary Completion: 2024-06-10
• Study Completion: 2024-06-10
• Last Update Submitted: 2024-06-10
• Last Update Posted: 2024-06-12

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 112

Inclusion Criteria

• Ages 18-24
• Fluent in English
• Either vaping in the past 30 days or not having vaped in the past 30 days but susceptible to vaping
• Self-reported abstinence of combusted tobacco or marijuana at time of visit

Exclusion Criteria

• Ages below 18 or above 24
• Not fluent in English
• Not confirmed self-reported abstinence of combusted tobacco or marijuana at time of visit

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: FACTORIAL

Primary Outcome Measures

Name	Time	Method
Orienting response	45 minutes	Orienting response, conceptualized as cognitive resources allocated to encode a message into working memory will be operationalized as heart rate using a Shimmer3 Unit with an electrode placed on the forefinger of the non-dominant hand. This is a well-established measure for cognitive resources devoted to stimuli processing. Lower scores indicate greater cognitive allocation of resources.
Visual attention	45 minutes	Participants will view one of four text-based e-cigarette education messages that are manipulated on the source and message presentation type. Participants will be randomly assigned to one of the following message type: 1) expert one-sided, 2) expert two-sided, 3) peer one-sided, 4) peer two-sided. We selected messages that were previously tested for effective themes and contents with young adults and adapted the features to two source (expert and peer) and presentation (one-sided and two-sided) types. Higher scores indicate greater visual attention.
Arousal	45 minutes	Arousal, an indicator of physiological activation in the sympathetic nervous system, will be measured by sampling skin conductance using a 30 Hz Shimmer Galvonic Skin Response on finger sensors.Higher scores indicate greater arousal.

Secondary Outcome Measures

Name	Time	Method
Attitudes	45 minutes	Attitudes will be measured by seven-item vaping attitudes questionnaire, such as vaping is unenjoyable/enjoyable, unhealthy/healthy, dangerous/safe, boring/fun, stupid/smart, not cool/cool, and not attractive/attractive on a five-point bipolar scale. Higher scores indicate worse outcomes.
Behavioral intentions	45 minutes	Behavioral intentions to vape will be measured by a three-item behavioral intentions questionnaire, such as intentions to vape (for vapers)/try vaping (for non-vapers) soon, anytime during the next year, would use offered by one of their best friends on a scale from 1 (Definitely not) to 5 (Definitely yes). Higher scores indicate worse outcome.

Trial Locations

Locations (1)

UMass Chan Medical School Shaw Building; 🇺🇸 Worcester, Massachusetts, United States