منابع مشابه
Stereopsis is perturbed by vergence error
Fixation disparity or vergence noise produce instantaneous vergence errors. These errors are analogous to the imposition of a pedestal disparity, which is known to elevate stereothresholds. In this study, stereothresholds were measured as a function of induced vergence errors in subjects with normal binocular vision. Stereo half-images were viewed in the dark through a custom mirror haploscope....
متن کاملBehavioral studies of local stereopsis and disparity vergence in monkeys
Investigations on macaque monkeys have provided much of our knowledge of the neural mechanisms of binocular vision, but there is little psychophysical data on the accuracy of vergence responses or the precision of stereoscopic depth perception in these primates. We have conducted comparative behavioral studies of binocular disparity processing in rhesus monkeys and humans via measurements of pr...
متن کاملStereopsis and Disparity Vergence in Monkeys with Subnormal Binocular Vision
The surgical treatment for strabismus in infants generally results in microtropia or subnormal binocular vision. Although the clinical characteristics of these conditions are well established, there are important questions about the mechanisms of binocular vision in these patients that can best be investigated in an appropriate animal model. In the present psychophysical investigations, spatial...
متن کاملStereopsis: Where Depth is Seen
Disparity-selective cells appear to occur in all parts of the visual cortex, but a recent fMRI study finds that some cortical areas are more strongly associated with disparity than others. More sophisticated tests of binocular function may be needed to identify the properties of single neurons that support this specialization.
متن کاملMedication Error, What Is the Reason?
Background: Medication errors due to different reasons may alter the outcome of all patients, especially patients with drug poisoning. We introduce one of the most common type of medication error in the present article. Case: A 48 year old woman with suspected organophosphate poisoning was died due to lethal medication error. Unfortunately these types of errors are not rare and had some preven...
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ژورنال
عنوان ژورنال: Vision Research
سال: 2003
ISSN: 0042-6989
DOI: 10.1016/s0042-6989(02)00408-x