Glycine absorption and visually evoked potentials
نویسندگان
چکیده
منابع مشابه
Pattern reversal visually evoked potentials in infants.
Visually evoked potentials (VEP) were recorded from infants two to six months of age using a checkerboard pattern reversal stimulus. By six months, infants produced the largest amplitude VEP to checks subtending visual angles of 7.5 or 15 minutes of arc, as do adults with 20/20 acuity. This finding indicates that by six months an infant's sensory capacity for a visual acuity of 20/20 is establi...
متن کاملModel of visually evoked cortical potentials.
The pattern-reversal (P-VEPs) and the motion-onset (M-VEPs) of visual evoked potentials were modeled by means of three damped oscillators (O1, O2, O3) of identical construction. The O1, assumed to simulate the response of primary visual area (V1), was driven by the firing density of the lateral geniculate nuclei. 01 contributed mainly to the N75 and P100 peaks of the P-VEPs. The O2, driven by t...
متن کاملOptimal Detection of Multiharmonic Visually Evoked Potentials
We consider the problem of detecting visual evoked potentials (VEP's). A matched subspace lter is applied to the detection of the VEP and is demonstrated to perform better than a number of other evoked potential (EP) detectors. Unlike single-harmonic detectors, the MSF detector is suitable for detecting multi-harmonic VEP's. Moreover, the MSF is optimal in the uniformly most powerful (UMP) sens...
متن کاملVisually evoked potentials in eccentrically and centrally fixing amblyopes.
Visually evoked potentials to checkerboard pattern reversal were found to be nearly five times larger in eccentrically fixing amblyopic eyes than in centrally fixing amblyopic eyes when compared with the fellow non-amblyopic eye. The two groups of amblyopes had comparably poor visual acuity and differed in no other way save in their fixation behaviour. This suggests that at least two neurodevel...
متن کاملTopographic visually evoked potentials induced by stereoptic stimulus.
Topographic processes of brain activity during stereopsis were investigated by means of two different principles, with a real stereo target and a computer stereogram. Use of either principle produced the same tendency: an electrically negative focus started from the central region of the scalp and moved to the parietal and occipital regions. These flows of excitation were seen during a period o...
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ژورنال
عنوان ژورنال: Anaesthesia
سال: 1992
ISSN: 0003-2409,1365-2044
DOI: 10.1111/j.1365-2044.1992.tb01979.x