EFFECT OF LESIONS IN SEPTAL AREA AND OLFACTORY BULBS ON SODIUM CHLORIDE INTAKE

被引:39
作者
CHIARAVIGLIO, E
机构
[1] Instituto de Investigación Médica, Mercedes y Martín Ferreyra, Córdoba, Argentina2 2 The author wishes to thank Dr. Samuel Taleisnik, Director of the Instituto de Investigación Médica Mercedes y Martin Ferreyra for his valuable help.
关键词
Drinking behavior; Limbic system; Saline preference; Sodium deprivation; Sodium excretion; Sodium overload;
D O I
10.1016/0031-9384(69)90102-4
中图分类号
B84 [心理学];
学科分类号
04 ; 0402 ;
摘要
Spontaneous sodium chloride intake in rats with lesions in the septal area or olfactory bulbs and normal rats were studied. Normal rats prefer 1% NaCl solutions when allowed to choose concentrations from 0.5%-3% NaCl and tap water. Animals with septal area or olfactory bulb lesions increase the 1% NaCl intake as compared with prelesion values. This effect was still evident 4 months later. The high NaCl intake is not related to an altered renal sodium excretion. The sodium depletion leads to a significant increase of Na intake in all animals, but the highest values are observed in lesioned animals. In Na-depleted rats, sodium overload reduced the sodium ingestion to normal values. It is postulated that, in the regulation of Na intake, a dual mechanism exists, inhibitory and stimulatory, and that the limbic system may be related to the inhibitory influences. © 1969.
引用
收藏
页码:693 / +
页数:1
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