Predictive<unk>  for a sinusoidal target movement In the scientific study of vision,<unk>  describes a type of eye movement in which the eyes remain fixated on a moving object. It is one of two ways that visual animals can voluntarily shift gaze, the other being saccadic eye movements.<unk>  differs from the vestibulo-ocular reflex, which only occurs during movements of the head and serves to stabilize gaze on a stationary object. Most people are unable to initiate<unk>  without a moving visual signal. The<unk>  of targets moving with velocities of greater than 30°/s tends to require catch-up saccades.<unk>  is asymmetric: most humans and primates tend to be better at horizontal than vertical<unk> , as defined by their ability to pursue<unk> ly without making catch-up saccades. Most humans are also better at downward than upward<unk> .<unk>  is modified by ongoing visual feedback.
Smooth pursuit
Fusional vergence
Somatosensory amplification
Visual temporal integration
Retinal summation
Scotopic vision
Photopic vision
Intramuscular coordination