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 (să-käd′, sə-)
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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(səˈkɑːd; -ˈkeɪd)
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]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014



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.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
In the comparison between GII and GIII in the saccadic eye movement tests compared to optokinetic nystagmus tests, there was no significant difference, except for the latency of the saccadic movement of the left eye, which had the longest latency in the group with learning disorder (Table 4).
Storok, "Saccadic eye movements as indicators of cognitive function in older adults," Aging, Neuropsychology, and Cognition, vol.
What saccadic eye movements tell us about TMS-induced neuromodulation of the DLPFC and mood changes: a pilot study in bipolar disorders.
Title: Altered Saccadic Eye Movements in Schizophrenia: A Case-Control Study Abstract
Therefore, allocation of attention through spatial cueing results in more accurate and faster processing of information in the space surrounding the cued region irrespective of whether a saccadic eye movement is necessary or not.
Contrast sensitivity during saccadic eye movement. Vision Research, 18, 1193-1200.
Letting the arrow in Figure 1 represent a single, rightward, saccadic eye movement and the asterisk represent a single flashing light, the bracketed array represents the phenomenal appearance.
Furthermore, there was excellent repeatability of the individual components (i.e., percent of correct responses and average response time) used by the COVS to make a pass or fail determination for the pursuit and saccadic eye movement (Figure 10(h)-(k)).
Parsing cognition in schizophrenia using saccadic eye movements: a selective overview.
However, it is worth to note that, in the primate oculomotor system, the neurons in the paramedian pontine reticular formation (PPRF) and in the mesencephalic reticular formation are involved in the generation of horizontal and vertical components, respectively, of saccadic eye movements. Thus, at the premotor level of eye movement programming, the movement of the eye is defined by Cartesian coordinates.
First, a saccadic eye movement is the primary overt behavioural indicator of the orienting of visual attention in everyday life.
To elaborate, a technique was developed that allowed experimenters to rapidly change a visual scene presented on a computer screen during the brief interval when observers were in the process of making a saccadic eye movement (Grimes, 1996).