نتایج جستجو برای: eye movement
تعداد نتایج: 298683 فیلتر نتایج به سال:
Measurement of eye movements often helps to diagnose ocular motor disorders in the clinic, and is also used as a research tool in ocular motor, vision and vestibular research. Eye movements, however, are usually recorded without simultaneous video recordings, making offline interpretation difficult. We developed a tool that converts the measured eye movement data into a three-dimensional (3D) m...
Gain adaptation of eye and head movement components of simian gaze shifts. J. Neurophysiol. 78: 2817-2821, 1997. To investigate the site of gaze adaptation in primates, we reduced the gain of large head-restrained gaze shifts made to 50 degrees target steps by jumping the target 40% backwards during a targeting saccade and then tested gain transfer to the eye- and head-movement components of he...
This paper proposes a methodology for the utilization of eye movement cues for the task of iris print-attack detection. We investigate the fundamental distortions arising in the eye movement signal during an iris print-attack, due to the structural and functional discrepancies between a paper-printed iris and a natural eye iris. The performed experiments involve the execution of practical print...
In many areas, experts often exhibit specialised eye movement behaviour which allows for more efficient task execution than novices. In some areas (e.g. Radiology), showing this pattern of eye movement behaviour to novices can help cue overt visual attention to more relevant areas; which allows for more efficient task completion. We present a study which investigated the effects of eye movement...
Dynamic characteristics observed in the trajectories of saccadic eye movements reveal systematic variability of the force pulses used to move the eyes. This variability causes saccades to exhibit a linear speed-accuracy trade-off: As the average distance and duration of saccades toward specified target points increase, the standard deviations of saccadic-movement endpoints increase linearly wit...
Though we might suppose that our sensations are unaffected by the talk around us, the rhetoric surrounding a treatment can in fact color the experience of those having the treatment. So it is with both Eye Movement Desensitization and Reprocessing (EMDR) and the 18th-century therapy that has been cited as its predecessor: mesmerism. In both cases, rhetoric itself is conscripted into the service...
The durations and trajectories of our saccadic eye movements are remarkably stereotyped. We have no voluntary control over these properties but they are determined by the movement amplitude and, to a smaller extent, also by the movement direction and initial eye orientation. Here we show that the stereotyped durations and trajectories are optimal for minimizing the variability in saccade endpoi...
in this study digital image correlation (dic) technique combined with a high speed video system was used to predict movement of particles in a water model. comparing with particle-image velocimetry (piv) technique, it provides a low cost alternative approach to visualize flow fields and was successfully employed to predict the movement of particles in a water model at different submergence dept...
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