Caloric pattern test with special reference to failure of fixation-suppression.
Fixation-suppression of caloric nystagmus was studied in 1230 consecutive cases. An analysis of caloric nystagmus with failure of fixation-suppression (FFS) made it possible to classify patterns of FFS into three types: Type I: FFS was observed bilaterally in caloric nystagmus; Type II: FFS was recognized unilaterally on either side; Type III: FFS was seen in either direction of nystagmus. On the basis of these three types, the underlying neuroanatomical substrate responsible for FFS is discussed.
D001927:Brain Diseases / Q000175:diagnosis* / Q000473:pathology / Q000503:physiopathology; D001932:Brain Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000503:physiopathology; D002150:Caloric Tests; D004584:Electronystagmography; D005133:Eye Movements; D005403:Fixation, Ocular; D006801:Humans; D014724:Vestibular Function Tests