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Titolo:
Dissociation of licking and volume intake controls in rats ingesting glucose and maltodextrin
Autore:
Kaplan, JM; Baird, JP; Grill, HJ;
Indirizzi:
Univ Penn, Dept Psychol, Philadelphia, PA 19104 USA Univ Penn Philadelphia PA USA 19104 t Psychol, Philadelphia, PA 19104 USA
Titolo Testata:
BEHAVIORAL NEUROSCIENCE
fascicolo: 1, volume: 115, anno: 2001,
pagine: 188 - 195
SICI:
0735-7044(200102)115:1<188:DOLAVI>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
MEAL DURATION; SACCHARIN; SUCROSE; DRINKING; SIZE; ADJUSTMENT; PREFERENCE; SATIATION; PATTERNS; BEHAVIOR;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
38
Recensione:
Indirizzi per estratti:
Indirizzo: Kaplan, JM Univ Penn, Dept Psychol, 3815 Walnut St, Philadelphia, PA 19104USA Univ Penn 3815 Walnut St Philadelphia PA USA 19104 PA 19104 USA
Citazione:
J.M. Kaplan et al., "Dissociation of licking and volume intake controls in rats ingesting glucose and maltodextrin", BEHAV NEURO, 115(1), 2001, pp. 188-195

Abstract

The volume of fluid that rats acquire with each lick was systematically varied across short-term tests with 12.5% glucose (Experiment 1) or 12.5% maltodextrin (Experiment 2). For glucose, rats increased the number of licks emitted as lick volume was reduced such that meal size remained remarkably stable across all (8, 4, and 2 mul) but the smallest (1 mul) lick volume conditions tested. Rats similarly compensated for lick volume reduction (8 to 4 mul) with maltodextrin by approximately doubling the number of licks emitted. Meal duration and a number of lick-microstructural parameters (initialingestion rate. mean burst duration, terminal lick and ingestion rates, and burst duration) were not correlated with the intake outcome insofar as they varied significantly across conditions over which intake remained stable. Thus, in response to lick volume manipulation, rats demonstrated an impressive degree of behavioral flexibility in what may be regarded as a defenseof meal size.

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Documento generato il 14/07/20 alle ore 06:21:29