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In an attempt to determine whether scrapie infectivity can be found in the peripheral nervous system of a scrapie-diseased sheep, mice were inoculated intracerebrally or intraperitoneally with 10-fold dilutions of homogenates of Nervus (N.) axillaris, N. ulnaris, N. medianus, N. ischiadicus, N. tibialis, N. fibularis, and N.saphenus. Mice were observed for(More)
We use a modeling approach to examine ideas derived from physiological network analyses, pertaining to the switch of a motor control network between two opposite control modes. We studied the femur-tibia joint control system of the insect leg, and its switch between resistance reflex in posture control and "active reaction" in walking, both elicited by the(More)
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