안구운동 제어계의 시간특성에 관한 연구 = Temporal Characteristics of the Eye Movement Control Systems

다국어 초록 (Multilingual Abstract)

This study aims to investigate temporal characteristics of the human eye movement control systems, especially the saccadic systems to various visual stimuli.
The eye motion transducer using infra-red photoelectric method and a target system which operates on non-predictable manner were constituted as basic measurement system. A measurement and recording systems are described for the recording and analysis of various types of saccadic eye movements (SEM) and of saccadic peak velocity (PV) associated with 10 and 20 degrees horizontal, vertical visual target.
Statistical results for average peak velocities (□) of uniocular (right eye) movements are given for a group of 5 normal subjects and compared with other researchers.
Most of SEM generate various corrective movements (CM) and these were categorized to saccadic and glissadic CM. It is suggested that the occurrence of corrective saccades to be dependent upon visual feedback informations. The production rate of CM to 10, 20 degrees target steps or pulses was 20% and 46% respectively.
The magnitude of corrective errors were within 1-2 degrees and saccadic gain was 0.9.
The saccadic peak velocity (PV) statistics showed no difference for horizontal directions and downward values were slightly faster than upward movement for vertical saccades. No significant differences are shown for horizontal and vertical movements. The velocity statistics were compared with other method and discussed the possibility of research and clinical tools that could be used on oculomotor modeling and neurological diseases.

목차 (Table of Contents)

• Ⅰ.서 론
• Ⅱ.실험장치 및 방법
• 1.실험장치
• 2.실험방법
• Ⅲ.결과와 고찰
• 1.안구운동 기록
• 2.수정운동
• 3.Saccade 평균최대속도
• 4.응용과 전망
• Ⅳ.결 론