본문 바로가기
HOME> 논문 > 논문 검색상세

논문 상세정보

Appetite v.120, 2018년, pp.67 - 74   SCI SCIE
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

Binary components of food reinforcement: Amplitude and persistence

Epstein, Leonard H. (University at Buffalo Jacobs School of Medicine and Biomedical Sciences, United States ) ; Stein, Jeffrey S. (Virginia Tech Carilion Research Institute, United States ) ; Paluch, Rocco A. (University at Buffalo Jacobs School of Medicine and Biomedical Sciences, United States ) ; MacKillop, James (Michael G. DeGroote School of Medicine, McMaster University, Canada ) ; Bickel, Warren K. (Virginia Tech Carilion Research Institute, United States ) ;
  • 초록  

    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 (Q 0 ): 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 made, and demand elasticity (α): quantitative non-linear relationship between purchasing and price. Principal components analysis was used to examine the factor structure of RRE for food across samples and types of food. Results Both studies revealed two factor solutions, with P max , O max, breakpoint and α loading on factor 1 (persistence) and intensity (Q 0 ) loading on factor 2 (amplitude) across both high and low energy dense foods. Persistence reflects an aggregate measure of price sensitivity and amplitude reflects the preferred volume of consumption (how long vs. how much). The two factors accounted for between 91.7 and 95.4% of the variance in food reinforcement. Intensity for high energy dense foods predicted BMI for both studies ( r = 0.18 and r = 0.22, p 's Conclusions The latent factor structure was similar across two significantly different independent samples and across low and high energy dense snack foods. In addition, the amplitude of the demand curve, but not persistence, was related to BMI. These results suggest specific aspects of food reinforcement that can be targeted to alter food intake.


  • 주제어

    Behavioral economics .   Demand curve .   Reinforcing value of food .   Exploratory factor analysis.  

 활용도 분석

  • 상세보기

    amChart 영역
  • 원문보기

    amChart 영역

원문보기

무료다운로드
  • 원문이 없습니다.

유료 다운로드의 경우 해당 사이트의 정책에 따라 신규 회원가입, 로그인, 유료 구매 등이 필요할 수 있습니다. 해당 사이트에서 발생하는 귀하의 모든 정보활동은 NDSL의 서비스 정책과 무관합니다.

원문복사신청을 하시면, 일부 해외 인쇄학술지의 경우 외국학술지지원센터(FRIC)에서
무료 원문복사 서비스를 제공합니다.

NDSL에서는 해당 원문을 복사서비스하고 있습니다. 위의 원문복사신청 또는 장바구니 담기를 통하여 원문복사서비스 이용이 가능합니다.

이 논문과 함께 출판된 논문 + 더보기