An investigation in adults to determine if physiological responses to visual food cues are associated with addictive eating behaviour

Not Applicable

Completed

• Conditions: Obesity; Food addiction; Diet and Nutrition - Obesity; Mental Health - Addiction

• Registration Number: ACTRN12619000410156
• Lead Sponsor: Assoc/Prof Tracy Burrows

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2019-03-13
• Study Completion: 2019-10-02
• Last Update Posted: 16 March 2020

Recruitment & Eligibility

• Status: Completed
• Sex: All
• Target Recruitment: 42

Inclusion Criteria

Individuals proficient in English with access to the internet and able to visit the University of Newcastle for a one-off visit will be recruited via advertisements on social media platforms (e.g. Facebook, twitter), and advertisements posted on community noticeboards on University of Newcastle campuses.

Exclusion Criteria

Individuals with epilepsy, a known heart condition, taking beta blockers, digoxin, or wearing a pacemaker; allergy to adhesive electrode patches or electrode gel used for ECG and GSR procedures. Individuals required to wear glasses with bifocal/varifocal lenses or have any of the following eye conditions: cataracts, prosthetic or bionic eye, amblyopia (commonly referred to as lazy eye). Individuals following a vegetarian diet or specialised diet that will affect their ability to view the food images (e.g. meat and dairy foods).

Study & Design

• Study Type: Interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Heart rate variability measured using an electrocardiography (ECG) measurement device (PowerLab 8/35 Bio Amp”, by AD Instruments) <br>[Baseline and continuously throughout the 12 minute session (5 min healthy food images, 2 min neutral images, and 5 min hyperpalatable food images)]; Electrodermal activity on the palm of the hand measured using a Galvanic Skin Response (GSR) recording device (PowerLab 8/35 Bio Amp”, by AD Instruments)[Baseline and continuously throughout the 12 minute session (5 min healthy food images, 2 min neutral images, and 5 min hyperpalatable food images)];Pupillary responses (composite of pupil fixations and saccades) will be recorded using an eye tracking device (Tobii Pro X3-120). [Baseline and continuously throughout the 12 minute session (5 min healthy food images, 2 min neutral images, and 5 min hyperpalatable food images)]

Secondary Outcome Measures

Name	Time	Method
Subjective hunger measured by Visual Analogue Scale[Baseline and on session completion (i.e. after viewing of image paradigms)]