Binary components of food reinforcement: Amplitude and persistence.

ABSTRACT:

Background

Demand curves provide an index of how reinforcing a food is. Research examining the latent structure of alcohol and tobacco reinforcement identified two underlying components of reinforcement, amplitude and persistence. No research has assessed latent structure of food reinforcement and how these factors are related to BMI.

Subjects and methods

Participants were 297 adults from two studies that completed food purchasing tasks to assess the following measures of relative reinforcing efficacy (RRE) of food: intensity (Q₀): purchases made when the food was free or of very minimal price, O_max: maximum expenditure (purchases*price), P_max: price point where maximum expenditure was observed, breakpoint: first price where 0 purchases are m

SUBMITTER: Epstein LH 

PROVIDER: S-EPMC6529198 | biostudies-literature | 2018 Jan

REPOSITORIES: biostudies-literature