The squirrel monkey stabilimetry.
In order to characterize postural ataxia associated with peripheral vestibular lesions, we have developed a T-perch recording system suitable for squirrel monkeys (tree-living primates). This system includes strain gauges for detecting movement of the vertical shaft in the directions of anterior-posterior and left-right. Simultaneously we recorded electroencephalogram (EEG), vertical eye movement, electrocardiogram (ECG) and respiration (by pneumography). Representative Dynographic records (obtained during sleep) after unilateral and bilateral (two-staged) labyrinthectomy showed the frequent occurrence of phasic body movements: slow deviations to the lesion side and the frontward and subsequent quick rightings which occurred almost synchronously with the sleep becoming shallow (judged by EEG).
D000818:Animals; D001259:Ataxia / Q000209:etiology*; D007758:Ear, Inner / Q000503:physiopathology*; D004562:Electrocardiography; D004569:Electroencephalography; D004584:Electronystagmography; D005133:Eye Movements; D005260:Female; D008297:Male; D008954:Models, Biological; D011187:Posture; D012119:Respiration; D012453:Saimiri; D014724:Vestibular Function Tests / Q000295:instrumentation