[Investigations on the vestibular recruitment (author's transl)]

Searching for some kind of vestibular recruitment that might be similar to the audiological recruitment as defined by Fowler, a caloric test was done at 44 degrees, 33 degrees, 30 degrees, 26 degrees, 17 degrees. The parameter of vestibular response was the maximum slow component speed, In total 36 Menière-patients were electronystagmographically examined. Out of the 36 only 16 were analyzed further for the question of vestibular recruitmen, who showed strictly unilateral lesions, who were attack-free since some months and who showed clear audiological recruitment at four different recruitment tests. The following results were obtained: 1. The values obtained for the sound side of Menière-patients correspond to values described as normal in literature. 2. The affected side showed less reaction at all temperatures, in no case there was a tendency to recruitment. 3. With considerable loss of excitability, a "flat curve" was resulting, indicating decruitment.