Neurologic Exam Cranial Nerves Anatomy : Major Oculomotor Gaze Systems Major Oculomotor Gaze Systems Eye movements are controlled by 4 major oculomotor gaze systems, which are tested for on the neurological exam. They are briefly outlined here: 1. Saccadic (frontal gaze center to PPRF (paramedian pontine reticular formation) for rapid eye movements to bring new objects being viewed on to the fovea. 2. Smooth Pursuit (parietal-occipital gaze center via cerebellar and vestibular pathways) for eye movements to keep a moving image centered on the fovea. 3. Vestibulo-ocular (vestibular input) keeps image steady on fovea during head movements. 4. Vergence (optic pathways to oculomotor nuclei) to keep image on fovea predominantly when the viewed object is moved near (near triad- convergence, accommodation and pupillary constriction)
Evolved Khepera displaying saccadic collision avoidance Evolved Khepera displaying saccadic collision avoidance with backward movements. More info: lis.epfl.ch
Forest Stroll (On His Way) Just testing my new Canon 550D in the forest near my home & checking some color correction setups & editing work flow. Music: Saccadic Eye Motion - On His Way
Age of Empires III Eye tracking Study This short video illustrates eye-gaze tracking with the Mirametrix S1 Eye tracker while playing Microsoft's Age of Empires III. Eye-tracking has great potential as a tool in the evaluation of game design. Knowing where a player looks and doesn't look provides excellent feedback on improving the playability of a game. Game developers can see their games literally from the eyes of their users. Using the Mirametrix S1 Eye tracker to track gaze position and the Viewer application for gaze overlay and screen recording, it is possible to tell exactly where the user's attention was at all times during game play. See our website for more information on how we can help you improve your products: This video shows a condensed mission, short segments were taken from the start, middle and end of the mission which took about 30 minutes to complete. The eye-gaze position is shown in red, the mouse position in green, left mouse clicks in blue and right mouse clicks in yellow. The size of the red circle is proportional to the duration of the fixation (stable point-of-gaze). Fixations are connected by a red line (saccades or quick jumps of the eyes). The brain typically processes information only when the eye is fixating, so fixations are a good indication of where the users cognitive processing (thinking) is taking place. The peripheral vision can provide queues on where to look next in the game, which the eye then jumps to with a fast saccade, to view with the fovea or ...
We Are Ghosts - Heart Attack At The Discotheque Download This Song Or Download Our Album - It's Free! Recorded At "Haogen Studio", 1/5/2010 Personal: Guy Bibi, Shany Kedar, Guyha, Morphlexis, Noa Magger, Udi Raz, Danny Rave, Orri Dror, Saccadic Eye Motion, Matan Neufeld Photographed by Guyha Edited By Benjamin Esterlis
Real-Time Active Vision for a Humanoid Robot Head My undergraduate thesis research involving real-time active vision on a 7DOF humanoid robotic head. Processing is performed on a distributed cluster of 4 PCs interconnected by Gigabit Ethernet and communicating via UDP. The work was performed at ATR International in Kyoto, Japan. Primary Objectives: -Implement 4 controllers: *Version (independently centering target in each eye's visual field) *Vergence (using stereo processing to generate symmetric eye movements for depth perception of nearby objects) *Saccadic eye motion (quick knee-jerk type eye movements to rapidly redirect gaze) *VOR (gaze stabilization compensating for externally induced head movements) -Couple eye movements with head movement -Create integrated control environment from the 4 independent controllers
Interior Movement across a photo, rough attempt to approximate the saccadic motion of the eye.
Abnormal Smooth Pursuit Smooth pursuit is considered abnormal if the patient appears to lose the target repeatedly and then catches up with fast corrective movements, which is known as saccadic eye tracking. The presence of saccadic eye tracking is suggestive of brainstem or cerebellar lesions.
Vestibular Balance Testing - 2 Video Nystagmography device (VNG) This is a very sophisticated device that we use to gain understanding of your brain function in many different areas, by observing the function of your eye muscles during movement. The device was pioneered by NASA to assess the adaptation of astronauts nervous systems in zero-gravity environments. It has now been adapted to give us relevant information about the nervous system back on earth. We use VNG at Back to Back Chiropractic Clinic to help us assess a range of conditions. To use the machine, we ask you to put on infrared camera goggles that records eye movement. Then we invite you to view static or moving cursors in front of you on a custom made digital light bar. As you perform different tests information is fed to a computer, which records and graphs the actions of your eyes. Recording eye movement videos alows us to assess nystagm, random Saccade and Smooth Pursuit. A saccade is a fast movement of an eye, head or other part of an animal's body or device. It can also be a fast shift in frequency of an emitted signal or other quick change. Saccades are quick, simultaneous movements of both eyes in the same direction. Initiated by eye fields in the frontal and parietal lobes of the brain, saccades serve as a mechanism for fixation, rapid eye movement and the fast phase of optokinetic nystagmus. Smooth pursuit eye movements allow the eyes to closely follow a moving object. It is one of two ways that visual ...
Pediatric-Neuro Exam 6 month: Cranial Nerves Cranial Nerves The baby is able to visually track an object throughout the horizontal and vertical planes. An interesting or colorful object is most helpful. To test visual fields, have the baby focus on an object in front of him and then bring a second object from behind him until he sees the object in his peripheral vision. He should turn toward the new object. Saccadic eye movements are tested by using interesting toys and sounds and watching the eyes jump from object to object. To test hearing, produce a sound out of the babys sight and then watch the baby turn and localize the sound. Facial movements are noted as the baby smiles or cries.
William Boyce - Overture to Peleus and Thetis Peleus and Thetis - A Masque William Boyce I. Overture Allegro - Largo - Gavot - Larghetto - Gavot Peter Holman Opera Restor'd This is remarkable as it is one of, if not the earliest use of the Italian sinfonia form by an English composer, being composed before 1740, possibly as early as 1733. This is yet more evidence that Boyce was not just one of the many imitators of Handel, but at the very forefront of musical development in London in the early-mid 18th Century. If written before 1738 as now seems likely, Peleus and Thetis could have prompted the revival of other older texts such as Milton's Comus by Arne (long a bitter and inferior rival of Boyce) and L'Allegro by Handel, which in turn had a large influence on Boyce's Solomon. Boyce eases us into the (then) new and unfamiliar form with a brief saccadic opening, hinting at the older French overture before launching into a rhythmically vital and attractive subject, with plenty of contrapuntal interplay between the two upper parts. The soli sections in this and subsequent movements are not so much borrowed from the concerto grosso form as a textural device, cf. the later Secular Masque overture where the opposite is the case. The second movement is languid and sorrowful, interrupted by "inconclusive" cadences, it's tempting to wonder if Boyce was painting a musical picture of the scene the curtain raises to, of Prometheus chained for eternity to the summit of Mount Caucasus with his tormentor.
Wayne saccadic fixator 142 - 30 sec. North Miami Beach Nova optometry pediatrics clinic.
saccadic tracking go fullscreen. the ball will flicker several times per second. you must track the ball and use saccadic vision at the same time(rather than having a ball that does not flicker, which would only improve tracking)
Saccade 0_4 Work-in-progress demonstration of a project which looks around within photos, emulating the saccadic motion of the eye and adjustment of the iris. This project is intended to confuse the boundary between still and moving image, and explore the modeling and simulation of visual perception.
Vestibular Nystagmus This is basically a short version of what is known as a trapezoidal test in which one is spun up to speed and suddenly stopped. Part of what is measured is the time constant of the decay of the nystagmus "beats" as a measure of vestibular health. The saccadic motion of my eye was a bit off since I was concentrating on keeping the camera centered as best as possible.
Saccadic Saltation A fun showcase of moderate quirk, high speed manuals, and a high degree of vocabulary. Made by two uninspired trackmakers. Enjoy.
Saccadic Persistence-of-Vision Display A small saccadic persistence-of-vision display inspired by Bill Bell's exhibit at the Exploratorium, a hands-on science museum in San Francisco. Unlike most POVs which move the LEDs to form an image, a saccadic display is stationary, relying instead on fast eye movements. This has the unsettling effect that you can only see the image by NOT looking directly at it. Made from an FTDI USB-to-serial bridge (in bitbang mode) and a heap of 74HC595 shift registers and LEDs.
Opsoclonus Due to Diphenhydramine Poisoning Opsoclonus consists of involuntary, irregular, back-to-back, multivectorial, saccadic eye movements while the gaze is fixed. It is seen primarily in association with autoimmune processes after viral infection and with paraneoplastic encephalitis but has also been described after ingestion of organophosphates, lithium, cetirizine, amitryptiline, diphenhydramine, or other substances.
Eyetest2 saccadic motion test
Modeling hand-eye coordination The light blue cross marks the position of the eye's gaze, and the sharp area round it illustrated the fovea. When the eye is in fast motion, the fovea shrinks and disappears due to "saccadic blindness". The obstacles' position is unknown, and this uncertainty is illustrated by the black fuzz around them. As the eye saccades to them, their position becomes unambiguous, and the fuzz disappears. The green fuzz around the hands illustrates the uncertainty in their position.
We Are Ghosts - Can't Take Another Look At You Taken From "We Are Ghosts II" Recorded At "Haogen Studio", 1/5/2010 Personal: Guy Bibi, Shany Kedar, Guyha, Morphlexis, Noa Magger, Udi Raz, Danny Rave, Orri Dror, Saccadic Eye Motion, Matan Neufeld Photographed by Guyha Edited By Benjamin Esterlis
Eye movements - Blink and Saccades at 600 frames per second
I, AY, EYE! Montage as eye see it.
Eye Video Smooth Pursuit Horizontal .1Hz.wmv Patient eye response to a Smooth Pursuit Horizontal test. Smooth Pursuit tests are also referred to as Oscillating Tracking Tests. These ocular motor tests task a patient with tracking a dot moving with a sinusoidal motion profile. The moving dot is projected by the Pursuit TrackerTM laser target generator mounted on top of the I-Portal® NOTC patient chair. Smooth Pursuit is a fundamental ocular motor test and is commonly included in all NKI test protocols. Tests are often run multiple times at gradually increasing frequencies, both horizontally and vertically. During the test, the saccadic movements of the patient's eyes are measured and the gain and phase of the eye movements are ***yzed relative to the corresponding time position of the stimulus.
EyeTest4 fluctuating the size of the iris and the pupil to attempt saccadic eye motion
Saccades 10/25 The movies were created by The University of Utah 2001 under a Creative Commons Attribution-NonCommerical-ShareAlike 2.5 License. For more Free medical material like this visit web2097
ER_Demo.mpg This is a demo video for the robotic implementation of a model of visual search presented in Brohan, Cope, Gurney and Dudek at EpiRob 2010. The upper panel contains the input image, which is obtained rom a camera mounted on a pan-tilt unit. The bottom left panel shows the activity of the feature-based working memory and the bottom right panel shows the location of the saccadic target in feature space. In the experiment, a reward is attached to a particular category of digit. Memories of rewarding features are developed through reinforcement learning. The experiment takes place in 3 epochs: in the first epoch no rewards are available. In the second epich, rewards are given for making saccades to the digit 2 and in the third epoch rewards are given for making saccades to the digit 6. See paper for more details.
Wayne Saccadic Fixator 1min record 258
Vestibular Balance Testing Video Nystagmography device (VNG) This is a very sophisticated device that we use to gain understanding of your brain function in many different areas, by observing the function of your eye muscles during movement. The device was pioneered by NASA to assess the adaptation of astronauts nervous systems in zero-gravity environments. It has now been adapted to give us relevant information about the nervous system back on earth. We use VNG at Back to Back Chiropractic Clinic to help us assess a range of conditions. To use the machine, we ask you to put on infrared camera goggles that records eye movement. Then we invite you to view static or moving cursors in front of you on a custom made digital light bar. As you perform different tests information is fed to a computer, which records and graphs the actions of your eyes. Recording eye movement videos alows us to assess nystagm, random Saccade and Smooth Pursuit. A saccade is a fast movement of an eye, head or other part of an animal's body or device. It can also be a fast shift in frequency of an emitted signal or other quick change. Saccades are quick, simultaneous movements of both eyes in the same direction. Initiated by eye fields in the frontal and parietal lobes of the brain, saccades serve as a mechanism for fixation, rapid eye movement and the fast phase of optokinetic nystagmus. Smooth pursuit eye movements allow the eyes to closely follow a moving object. It is one of two ways that visual ...
Saccade Saccade demo
We Are Ghosts - I'll Catch Your Last Breath Film shot by Guyha Edited by Morphlexis We Are Ghosts - a group of artists & musicians from Israel with a musical agenda: to capture the ESP of live recording, a jam session with no written or pre-composed notes - it's all live, raw & without planning. you can download the full album for free/donation - as you wish: Personal: Saccadic Eye Motion - Guitars Shany Kedar - Vocals, Bass, Guitar, Percussions Orri Dror - Bass, Guitar Noa Magger - Vocals & Holly Presence Danny Rave - Drums & Percussions Guyha - Kalimba Joe Morphlexis - Guitar, Fender Rhodes, Vocals, Bass
Abnormal Cranial Nerve Exam : Smooth Pursuit Visit us on for more free medical video and animation Smooth Pursuit The patient shown has progressive supranuclear palsy. As part of this disease there is disruption of fixation by square wave jerks and impairment of smooth pursuit movements. Saccadic eye movements are also impaired. Although not shown in this video, vertical saccadic eye movements are usually the initial deficit in this disorder.
Vision Therapy Behavioural Optometry Gold Coast Visual Attention Harmony Vision Care's Vision Therapist, Michelle demonstrating use of the Saccadic Fixator. A Vision Therapy activity which helps give patients an experience of using both their central and peripheral visual attention at the same time. Harmony Vision Care is a behavioural optometry and vision therapy clinic serving the Gold and Tweed Coasts, in Australia