In the second part of the experiment, the perception task was performed while viewing the patterns through an artificial “pupil” of adjustable size. Although this method allowed for systematic control of the amount of light stimulating the pupil, it is difficult to generalize these results to a...
However, no single measurement of pupil size other than by photographic procedures should be considered to be absolutely reliable, especially if the pupil test alone is used as legal evidence for indicating use of narcotics.doi:10.1002/cpt196126713Elliott, Henry W....
artificial pupil1.Pupil made by iridectomy.2.A circular aperture made in a diaphragm which can be mounted in front of the eye to provide a constant and smaller pupil size. It is used in research but also as a clinical test.Seepinhole disc. ...
which yields an output signal proportional to pupil size that can be recorded on thepolygraphor in the computer. An accumulation of evidence indicates that the pupillary response measures the proportion of totalcognitive processingcapacity that has been invested in the analysis of the eliciting stimulu...
Tonic pupil size and/or ERPD might be used prospectively as an easy-to-use and inexpensive biomarker to identify responders to taVNS and to optimally tune stimulation parameters, given that a clear effect of taVNS on at least one pupillary parameter can be established. Results Resting ...
Define Pupil constriction. Pupil constriction synonyms, Pupil constriction pronunciation, Pupil constriction translation, English dictionary definition of Pupil constriction. Noun 1. pupillary reflex - reflex contraction of the sphincter muscle of the ir
the simulation of this system has a contrary effect – a dose of heroin impels its users’ pupils to contract, as the drug heavily relaxes a user’s muscles to the extent of inactivity. It seems, however, that the changes in pupil size are byproducts of the nervous system processing vital...
the pupil size may be enlarged by ICL fixation, especially when the amount of vaulting is large, possibly as a result of the larger ICL size selection.18 It is suggested that an appropriate ICL size selection may also be an important factor in determining the postoperative pupil diameter in ...
Next to an assessment of pupil size and response to light, practitioners in intensive care units are now expected to be familiar with the value of brainstem reflexes, but the brainstem reflexes are seriously underused and underdocumented by nonneurologists. When did we start using them? How did...
Postoperative topical non-steroidal anti-inflammatory drug (NSAID) use was ignored due to its significant collinearity with diabetes and small sample size. P-values ≤ 0.05 were considered statistically significant. Results Included were 1266 eyes operated with mechanical pupil dilatation. The mean ...