Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Operant Conditioning Intervention01:24

Operant Conditioning Intervention

97
Operant conditioning serves as a foundational principle in therapeutic interventions aimed at modifying maladaptive behaviors. Central to this approach is the notion that behaviors, both adaptive and maladaptive, are learned through reinforcement. By analyzing the environmental factors that reinforce problematic behaviors, clinicians can design interventions to weaken these reinforcements and replace maladaptive behaviors with healthier alternatives.
In operant conditioning, behaviors that are...
97
Conditioned Taste Aversion01:14

Conditioned Taste Aversion

199
Conditioned taste aversion, also known as sauce béarnaise syndrome, is a phenomenon in which an individual develops an aversion to a certain food taste following a negative experience, typically illness. This form of aversion is a type of classical conditioning in which the taste of the food (conditioned stimulus, CS) is associated with the experience of illness (unconditioned stimulus, UCS).
A notable characteristic of conditioned taste aversion is that it often requires only a single...
199
Community Based Intervention01:30

Community Based Intervention

68
Community-based interventions in mental health represent a paradigm shift from institution-centered care to treatments embedded within the fabric of local communities. By prioritizing inclusion and leveraging existing societal structures, this approach fosters a supportive environment conducive to addressing mental health challenges while promoting individual dignity and agency.
Foundations of Community Mental Health Programs
Central to the success of community-based interventions is the...
68
Randomized Experiments01:13

Randomized Experiments

7.1K
The randomization process involves assigning study participants randomly to experimental or control groups based on their probability of being equally assigned. Randomization is meant to eliminate selection bias and balance known and unknown confounding factors so that the control group is similar to the treatment group as much as possible. A computer program and a random number generator can be used to assign participants to groups in a way that minimizes bias.
Simple randomization
Simple...
7.1K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Pasteurized Akkermansia muciniphila Muc<sup>T</sup> for weight loss maintenance in people with overweight and obesity: a controlled randomized trial.

Nature medicine·2026
Same author

Gut microbiota responses to isocaloric macronutrient modulation in tissue-specific insulin resistance: a secondary analysis of the PERSonalized glucose Optimization through Nutritional intervention (PERSON) randomized trial.

The American journal of clinical nutrition·2026
Same author

The MetaboHealth Score Enhances Insulin Resistance Metabotyping for Targeted Fat Loss: The PERSON Study.

Obesity (Silver Spring, Md.)·2026
Same author

The initial development and validation of a child-oriented food literacy questionnaire.

Public health nutrition·2025
Same author

Effect of sweeteners and sweetness enhancers on weight management and gut microbiota composition in individuals with overweight or obesity: the SWEET study.

Nature metabolism·2025
Same author

A head-to-head comparison of soluble dietary fibers on microbiota composition and short-chain fatty acid production using the in vitro TIM-2 system.

Carbohydrate polymers·2025

Related Experiment Video

Updated: Aug 8, 2025

A Treatment Package without Escape Extinction to Address Food Selectivity
04:23

A Treatment Package without Escape Extinction to Address Food Selectivity

Published on: August 21, 2015

11.6K

Promoting vegetable acceptance in toddlers using a contingency management program: A cluster randomised trial.

Britt van Belkom1, Alexander Umanets1, Edgar van Mil2

  • 1Chair Youth, Food & Health, Institute for Food, Health, & Safety by Design, Maastricht University Campus Venlo, the Netherlands.

Appetite
|February 27, 2023
PubMed
Summary
This summary is machine-generated.

A contingency management program using repeated vegetable exposure and non-food rewards significantly increased toddlers' willingness to try vegetables. Vegetable recognition improved with exposure alone, but rewards were key for acceptance.

Keywords:
ChildcareRepeated exposureRewardToddlersVegetables

More Related Videos

Errors as a Means of Reducing Impulsive Food Choice
07:07

Errors as a Means of Reducing Impulsive Food Choice

Published on: June 5, 2016

8.7K
Methods for Presenting Real-world Objects Under Controlled Laboratory Conditions
06:54

Methods for Presenting Real-world Objects Under Controlled Laboratory Conditions

Published on: June 21, 2019

6.0K

Related Experiment Videos

Last Updated: Aug 8, 2025

A Treatment Package without Escape Extinction to Address Food Selectivity
04:23

A Treatment Package without Escape Extinction to Address Food Selectivity

Published on: August 21, 2015

11.6K
Errors as a Means of Reducing Impulsive Food Choice
07:07

Errors as a Means of Reducing Impulsive Food Choice

Published on: June 5, 2016

8.7K
Methods for Presenting Real-world Objects Under Controlled Laboratory Conditions
06:54

Methods for Presenting Real-world Objects Under Controlled Laboratory Conditions

Published on: June 21, 2019

6.0K

Area of Science:

  • Pediatric Nutrition
  • Behavioral Psychology
  • Food Acceptance

Background:

  • Children's acceptance of novel foods is often achieved through repeated exposure.
  • Contingency management programs, combining exposure with rewards, may enhance food acceptance.
  • Understanding effective strategies for increasing vegetable consumption in toddlers is crucial.

Purpose of the Study:

  • To investigate the effectiveness of a contingency management program (The Vegetable Box) in toddlers.
  • To determine if repeated vegetable taste exposure with contingent non-food rewards increases vegetable recognition and willingness to try.
  • To compare outcomes between groups receiving exposure/reward, exposure/no reward, and no exposure/no reward.

Main Methods:

  • A 3-month intervention involving 598 toddlers (1-4 years old) across 26 Dutch day-care centres.
  • Random assignment to three conditions: exposure/reward, exposure/no reward, or no exposure/no reward.
  • Assessment of vegetable recognition and willingness to try vegetables before and after the intervention using standardized tests.

Main Results:

  • Vegetable recognition significantly increased in both the 'exposure/reward' and 'exposure/no reward' groups compared to the control group.
  • Willingness to try vegetables significantly increased only in the 'exposure/reward' group.
  • Contingent rewards were particularly effective in increasing children's willingness to taste and consume vegetables.

Conclusions:

  • Offering vegetables in day-care settings improves toddlers' vegetable identification skills.
  • Contingent rewards are essential for enhancing children's willingness to try and consume vegetables.
  • Reward-based programs are a potent strategy for increasing vegetable acceptance in young children.