What's the difference between jerky and saccade?

Jerky


Definition:

  • (a.) Moving by jerks and starts; characterized by abrupt transitions; as, a jerky vehicle; a jerky style.

Example Sentences:

  • (1) You can see the stitching in Igglepiggle's blanket; you sense (you'd be right) that the jerky Pontipines are manipulated by magnets, like the players in an old-fashioned toy theatre.
  • (2) Therefore, in the present study, the slow phase of CN during convergence was analyzed in 7 patients horizontal and jerky type CN.
  • (3) She also had contractures of hips, knees and ankles, and bilateral spasticity and jerky movements.
  • (4) The main form of translocation on laminin was a jerky cycle of prolonged lamellipod extension followed by rapid (approximately 200- less than 500 microh h-1) movement of the cell body into the extended lamellipod.
  • (5) Electronystagmographic study showed that this jerky eye movement appeared especially with changes of fixation of the eyes.
  • (6) When she violates his expectancy for rhythmic interaction by presenting a still, unresponsive face to him, he becomes visibly concerned, his movements become jerky, he averts his face, then attempts to draw her into interaction.
  • (7) In addition to the consistent neurological abnormalities described previously in this syndrome, the infant had a striking neurological constellation, absence of primitive reflexes, jerky eye movements, failure to habituate to repeated stimuli, inadequate behavior development, and absence of orientation responses to visual or auditory stimuli.
  • (8) This ambulatory piece of salmon jerky can offer himself up for public service and it’s treated as totally normal.
  • (9) Jerky nystagmus of latent typ was the most frequent form, pendular nystagmus the next.
  • (10) The defects included abnormal OKN (86%), jerky pursuit (76%), ocular dysmetria (57%), slow saccades (43%), abnormal VOR or VVOR (43%), and fixation instability (19%).
  • (11) "It tastes a bit like beef jerky; it goes well with a cold beer."
  • (12) The influences of lift velocity and jerky movement on lumbar stress are quantified.
  • (13) Seven patients (group I) developed an oculomotor syndrome in the sound eye characterized by jerky nystagmus in abduction, adduction fixation preference, and head-turn toward the side of the fixating eye.
  • (14) Huntington's Disease, a severe disease lasting about 10 years and involving personality changes, jerky movements, paranoia, dementia, inability to think cognitively, and eventual death, shows up between the ages of 30-50.
  • (15) He's still got it, and offers to fetch it from his Hampstead hallway, but he's been leaping up and down all morning chasing coffee and cakes, and every jerky movement is accompanied by a quiet groan, only half-stifled.
  • (16) During ECC, the pressure on the sternum was maintained for about 0.5 sec (sustained pressure technique), flow and mean arterial pressure were improved by 32 and 20%, respectively, as compared with flow and pressure obtained with a quick and more jerky compression.
  • (17) Spastic contractions of the striated sphincter during detrusor contraction were observed in 8 patients with an intermittent and jerky urinary stream.
  • (18) About half were indistinguishable from wild type; the others exhibited "jerky" or "twirly" movements instead of relatively straight paths.
  • (19) d-Tc increased ambulation and caused jerky side-to-side movements.
  • (20) Expiration is attended by a specific component of a vomiting reaction--jerky contraction of the abdominal muscles directed at evacuation of the food from the gastrointestinal tract.

Saccade


Definition:

  • (n.) A sudden, violent check of a horse by drawing or twitching the reins on a sudden and with one pull.

Example Sentences:

  • (1) This series of tests included tests for pathologic nystagmus, saccades, smooth pursuit, and optokinetic nystagmus, as well as bithermal caloric testing and rotational testing.
  • (2) The following oculomotor paradigms were investigated: horizontal and vertical saccades of different sizes (10-80 degrees), smooth pursuit eye movements, optokinetic and vestibular nystagmus.
  • (3) Many subjects have a negative spike in the beginning of a saccade in electro-oculographic signals.
  • (4) In one group of patients peak eye movement velocities alone were measured during horizontal refixation saccades.
  • (5) Abducting saccades, which were slightly hypometric, displayed a marked postsaccadic centripetal drift.
  • (6) When delta phi was enlarged, first saccades were either directed near the green or the red spot (bistable response mode).
  • (7) The position of the visual receptive field of these neurons did not change after saccadic eyes displacements, but remained in-register with the tactile receptive field.
  • (8) If the fixation point remained visible (overlap condition), very short (100 ms) and rather long (220 ms) latency saccades were observed.
  • (9) (b) Does the parafoveal processing of words affect the following interword saccade?
  • (10) We concluded that VDI may be a very useful index in detecting subtle disorders in saccades conjugacy.
  • (11) When an observer moves his arm he shows more precise visual tracking of a target mounted on his fingertip-the eye lags behind the target less and makes fewer corrective saccades-than when he relaxes his arm and the experimenter moves it in a similar manner.
  • (12) Although we found clear and consistent subject-specific differences, the most common pattern in oblique visually-guided (i.e., fast) saccades reflected early dominance of the horizontal velocity signal as expressed in saccade trajectories curving away from the horizontal axis.
  • (13) Three units showed eye position-related tonic discharges with saccadic bursts.
  • (14) Analysis of our patient's behavior indicates that many types of saccadic oscillations can be explained and classified by assuming an abnormality of pause cell control over saccadic burst neurons.
  • (15) A computerized pattern recognition algorithm divided pursuit eye movements into two basic components: smooth pursuit and saccadic eye movements.
  • (16) In one subject, compensatory saccadic eye movements corrected a consistent directional asymmetry in the slow-phase response.
  • (17) We report a 73-year-old patient with an eye movement disorder characterized by paralysis of saccades and pursuit.
  • (18) Text in which familiar patterns of letters were destroyed, either by changing letter-order or letter-orientation, was read by sequences of small (less than 30') saccades made to look at every letter, or every alternate letter.
  • (19) The low-threshold region from which saccadic eye movements could be evoked with currents less than 10 microA was confined to lobule VII in two monkeys and it included a posterior part of lobule VI (lobule VIc) in another monkey.
  • (20) During the drug holidays, visually guided saccades were hypometric and had long latencies but retained a normal saccade velocity-amplitude relationship.

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