An Evaluation of Sequential Meal Presentation with Picky Eaters

Area of Science:

• Behavioral Science
• Nutritional Psychology
• Food Consumption Studies

Background:

• Previous research on sequential food presentation (nonpreferred/NP and high-preferred/HP) yielded inconsistent results.
• Limited understanding exists regarding how food preferences and presentation methods influence consumption patterns.
• Total meal presentation, where NP and HP foods are served together, is common but its impact on consumption is not fully elucidated.

Purpose of the Study:

• To evaluate the impact of different food presentation methods on consumption.
• To compare sequential presentation (appetizer and differential reinforcement) against total meal presentation.
• To determine if making HP foods contingent on NP food consumption enhances intake of NP foods.

Main Methods:

• Utilized total meal presentation as a baseline condition.
• Implemented an appetizer presentation method where NP foods were served first.
• Introduced sequential presentation with differential reinforcement, making HP foods conditional on NP food consumption.

Main Results:

• Presenting NP foods as an appetizer did not significantly increase their consumption.
• Consumption of NP foods only increased when HP foods were made contingent upon consuming the NP foods.
• Differential reinforcement proved more effective than simple sequential or appetizer presentation for increasing NP food intake.

Conclusions:

• The effectiveness of food presentation strategies depends on the specific method employed.
• Contingent reinforcement, using preferred foods to encourage consumption of less preferred items, is a viable strategy.
• Appetizer presentation alone is insufficient to drive consumption of nonpreferred foods without further incentives.