saccade

• 眼球在注视点之间快速、突然的运动；也可指突然的痉挛性动作或抽动。

A rapid, jerky movement of the eyes between points of fixation, or an abrupt spasmodic movement.

1. Rapid eye movementC1formalscientific

   A quick, jerky movement of the eyes from one fixation point to another, occurring during reading or visual scanning.

   眼跳

   • During reading, the eyes make rapid saccades from word to word.
   • The researcher measured the speed of saccades in the visual test.
   • Saccades are essential for scanning a scene efficiently.

2. Abrupt movementC2formalscientific

   An abrupt, spasmodic movement, often referring to a sudden shift in position or direction.

   急促运动

   • The dancer's saccade across the stage surprised the audience.
   • A sudden saccade in the robot's arm indicated a malfunction.
   • The horse made a saccade to avoid the obstacle.

   同义词jerkjumplurchspasmstarttwitch