photo-electric recordings in one patient with tumour defined features of this disorder of saccadic eye movement : ( i ) oscillation was composed of saccades , ( ii ) frequency was 2 hz , ( iii ) bursts occurred with amplitude first increasing and then decreasing , ( iv ) intervals between beginnings of saccades averaged 260 ms and ( v ) eye position did not exhibit systematic drift during the intersaccadic period .
C0015414
tumour
C0015392
eye