saccade


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Related to saccade: nystagmus, antisaccade

sac·cade

 (să-käd′, sə-)
n.
A rapid intermittent eye movement, as that which occurs when the eyes fix on one point after another in the visual field.

[French, jerk, jolt, from Middle French, from Old French dialectal saquer, to jerk, pull, variant of Old French sachier, to pull forcefully, turn over, shake up, from sac, sack (perhaps in reference to the shaking of bags of wheat to settle their contents); see sac1.]

sac·cad′ic adj.

saccade

(səˈkɑːd; -ˈkeɪd)
n
1. (Physiology) the movement of the eye when it makes a sudden change of fixation, as in reading
2. (Horse Training, Riding & Manège) a sudden check given to a horse
[C18: from French: a jerk on the reins of a horse]

sac•cade

(sæˈkɑd)

n.
a rapid, irregular eye movement that occurs when changing focus from one point to another, as while reading or looking out from a moving train.
[1950–55; < French saccade jerk, jolt < Middle French saqu(er) to pull violently]
sac•cad′ic, adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.saccade - a rapid, jerky movement of the eyes between positions of rest
eye movement - the movement of the eyes
2.saccade - an abrupt spasmodic movement
movement, motility, motion, move - a change of position that does not entail a change of location; "the reflex motion of his eyebrows revealed his surprise"; "movement is a sign of life"; "an impatient move of his hand"; "gastrointestinal motility"
References in periodicals archive ?
Son rire saccade et ses piques teintees d'ironie a l'endroit de Da Meziane retentiront longtemps encore dans les oreilles de ceux qui ont suivi les peripeties de la serie qui a eu un succes populaire.
Uriner devient difficile : l'emission d'urine est lente a demarrer, le flux est faible et saccade, et des gouttes d'urine continuent a s'ecouler pendant une minute ou deux.
eye saccade movements), tongue, head, fingers or hands, sometimes even locomotion (approaching or going away from the objects), so as to achieve visual, tactual, olfactory, auditory or gustatory stimulation.
124) If the driver cannot successfully perform the first two tasks or if his eyes saccade as he watches a moving object, the officer may conclude that he is inebriated.
After a saccade, this wave of activity reorganizes to travel from the fovea, at the center of the visual field, and which is the area of the eye with the best visual acuity, to the periphery.
The researchers hope the assessment will make the process of reaching an accurate diagnosis more efficient, and they plan to form a company, Saccade Diagnostics, to produce and sell the test.
Predicted Velocity, Acceleration, Duration: Curves were fit to predict peak velocity, peak acceleration, and duration given the amplitude of the saccade for each individual for horizontal and vertical tracking tests.
With unilateral vestibular loss the VOR will fail to keep the gaze on the nose and there will be a catch-up saccade.
Working Memory Capacity and the AntisaccadeTask: Individual Differences in Voluntary Saccade Control.
5) The point of focus moves with each saccade, and our brain assembles the image into a coherent picture.