Thornton S N
Brain Res. 1986 Jul 2;377(1):96-104. doi: 10.1016/0006-8993(86)91194-7.
The area of the brain of pigeons that may be responsible for drinking following intravascular administration of osmotically effective solutes was investigated using infusions of water or isotonic and hypertonic solutions of NaCl or sucrose into various regions of the brains of conscious birds, and measuring the volume of water drunk. The preoptic area and the lateral hypothalamus were the only areas from which dose related drinking could be obtained in response to bilateral infusions of hypertonic NaCl or sucrose. Unilateral infusion of the hypertonic solutions rarely produced drinking. In contrast, water or isotonic NaCl, when infused unilaterally, in some cases caused some water intake. Drinking in response to intravenous infusion of hypertonic NaCl was not abolished by an 'apparent' lesion of the preoptic area. In several cases infusion of water or sucrose into the preoptic area caused a small volume of isotonic saline solution to be drunk. Thus the preoptic area and the lateral hypothalamus appear to be at least two of the areas involved in osmoregulation in the pigeon and may also be involved in sodium regulation.
通过向清醒鸟类大脑的不同区域输注水、等渗和高渗的氯化钠或蔗糖溶液，并测量其饮水量，研究了鸽子大脑中可能与血管内注射渗透活性溶质后饮水行为有关的区域。视前区和下丘脑外侧是仅有的在双侧输注高渗氯化钠或蔗糖后能产生与剂量相关饮水行为的区域。单侧输注高渗溶液很少引起饮水。相比之下，单侧输注水或等渗氯化钠在某些情况下会导致一定的水摄入。视前区“明显”受损后，静脉输注高渗氯化钠引起的饮水行为并未消除。在一些情况下，向视前区输注水或蔗糖会导致鸽子饮用少量等渗盐溶液。因此，视前区和下丘脑外侧似乎至少是鸽子参与渗透压调节的两个区域，也可能参与钠调节。
