STUART, D. G. 
permit a localization of that region of the hypothalamus responsible 
for the production of shivering. Thirdly, it seemed that the net 
effect of decortication on shivering could be one of depression, 
facilitation, or nil, depending on the relative tonic preponderance 
of facilitating versus suppressive telencephalic influences on the 
critical hypothalamic region in the intact brain. 
In defense of these hypotheses the following experiments have 
been undertaken in Dr. Allan Hemingway's laboratory in the past 
two years: 
1. Re -ex ami nation of the decerebrate cat's response to a cold 
stress. 
2. Re -examination of the decorticate cat's response to a cold 
stress. 
3. Localization of the hypothalamic region which when activated 
produces, and when destroyed abolishes, shivering. 
4. Comparison of somatic effects evoked during stimulation 
of such a region and the septum. 
5. Comparison of relative suppression evoked by septal, an- 
terior and posterior hypothalamic stimulation during shivering. 
6. Effects of septal lesions on shivering. 
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