Sensitization and Habituation of Motivated Behavior in Overweight and Non-Overweight Children

Autor/inn/en	Epstein, Leonard H.; Robinson, Jodie L.; Temple, Jennifer L.; Roemmich, James N.; Marusewski, Angela; Nadbrzuch, Rachel
Titel	Sensitization and Habituation of Motivated Behavior in Overweight and Non-Overweight Children
Quelle	In: Learning and Motivation, 39 (2008) 3, S.243-255 (13 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0023-9690
DOI	10.1016/j.lmot.2008.03.001
Schlagwörter	Obesity; Habituation; Comparative Analysis; Children; Child Health; Preadolescents; Food; Responses; Eating Habits; Motivation; Operant Conditioning; Individual Differences + Suchen Sie Ihr Suchwort? Adipositas; Child; Kind; Kinder; Pre-adolescence; Präadoleszenz; Lebensmittel; Ernährungsgewohnheit; Essgewohnheit; psychologische; Motivation (psychologisch); Operante Konditionierung; Individueller Unterschied
Abstract	The rate of habituation to food is inversely related to energy intake, and overweight children may habituate slower to food and consume more energy. This study compared patterns of sensitization, as defined by an initial increase in operant or motivated responding for food, and habituation, defined by gradual reduction in responding, for macaroni and cheese and pizza in overweight and non-overweight 8- to 12-year-old children. Non-overweight children habituated faster to both foods than overweight children (p = 0.03). All children recovered motivated responding for a new food (chocolate). Overweight children consumed more energy than non-overweight children (p = 0.0004). Children who showed a sensitization in responding consumed more food (p = 0.001), and sensitization moderated the effect of overweight on habituation, with slower habituation for overweight children who sensitized (p less than 0.001). This study replicates previous data on overweight/non-overweight differences in habituation of food and energy intake, and provides new information that individual differences in sensitization and habituation of motivated responding to obtain food may be associated with a sustained motivation to eat, resulting in greater energy intake. (Contains 5 figures and 1 table.) (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10