(5) Eye movement revealed the aging effect in the involvement
of frontal lobe function
¡¡¡¡in performance of visuospatial memory task.
¡¡¡¡13th European Conference on Eye Movements, PA-179, 2005-8
We experimented a new developed computer tool for visuospatial sequential
memory to 154 healthy adults and studied the involvement of frontal
lobe function in performance by recording eye movements. In a new tool,
the stimuli were presented with any order at each cell on the touch-panel
display which was divided into 3-6, and subject was requested to recall
the location and sequence order of those stimuli and to touch the cell
according to his recall. ln results the elder performance was worse
in the task which was apparently random, even though in the systematically
stimuli task. The age related performance might be due to the decreasing
not only of memory capacity but of certain frontal lobe functions.
On this hypothesis, we recorded 4 subject's eye movements during task
performance by EMR-8(NAC) and found delayed reaction time which indicated
the difficulty of detecting regularity of the stimuli in the elder,
while the young adults anticipated and began to move their eyes before
stimuli.