کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9149916 | 1166442 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Sodium preference and appetite in rats in an operant protocol
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موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
فیزیولوژی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Sodium preference and appetite in rats in an operant protocol Sodium preference and appetite in rats in an operant protocol](/preview/png/9149916.png)
چکیده انگلیسی
An operant task that may simulate natural foraging was used to study in Sprague-Dawley rats the need-free choice between water and various concentrations of NaCl solution, and the induction of sodium appetite during chronic deoxycorticosterone acetate (DOCA) treatment. The task imposed a fixed ratio foraging or procurement cost for access to each fluid. The relative preference for NaCl over water when both had the same procurement cost was similar to the preference/aversion function that has been reported for this strain of rat under free drinking conditions. As the procurement cost increased, the number of bouts taken per day of both water and NaCl decreased and the mean bout size increased. Administration of DOCA produced an increase in NaCl intake under all conditions, and this appetite was manifest as discrete episodes whose frequency and size were inversely related. Natural observations of sodium appetite in mammals, such as excursions to, often remote, mineral deposits, imply an episodic organization of this behavior. This report is the first laboratory simulation of environmental factors that affect the episodic or temporal organization of sodium appetite.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physiology & Behavior - Volume 83, Issue 5, 17 January 2005, Pages 715-721
Journal: Physiology & Behavior - Volume 83, Issue 5, 17 January 2005, Pages 715-721
نویسندگان
Connie L. Colbert, Neil E. Rowland,