Necker R, Gnuschke H
Institut f. Tierphysiologie, Ruhr-Universität Bochum, FRG.
Brain Res Bull. 1989 May;22(5):787-91. doi: 10.1016/0361-9230(89)90021-x.
The effect of hypothalamic lesions on temperature regulation was studied in pigeons by recording deep and skin temperatures, shivering, panting and oxygen consumption. Thresholds of shivering and panting were assessed before and after lesions. Survival was 100% when lesions were done in awake animals in a cool environment. Lesions anterior to the anterior commissure which included the preoptic area resulted in an increased threshold of panting or a lack of panting response at body temperatures up to 44.5 degrees C. Shivering response was unchanged in these animals. Lesions posterior to the anterior commissure were followed by a lack of shivering response with no change in panting threshold. This points to a segregation of the hypothalamic structures controlling heat loss and heat gain in the pigeon.
通过记录深部体温、皮肤温度、颤抖、喘气和耗氧量，研究了下丘脑损伤对鸽子体温调节的影响。在损伤前后评估颤抖和喘气的阈值。当在凉爽环境中对清醒动物进行损伤时，存活率为100%。在前连合前方包括视前区的损伤导致喘气阈值升高，或在体温高达44.5摄氏度时缺乏喘气反应。这些动物的颤抖反应没有变化。前连合后方的损伤导致缺乏颤抖反应，喘气阈值没有变化。这表明在鸽子中控制散热和产热的下丘脑结构是分开的。
