(n.) A turning point; the principal or highest point; top; summit; crown; apex.
(n.) The top, or crown, of the head.
(n.) The zenith, or the point of the heavens directly overhead.
(n.) The point in any figure opposite to, and farthest from, the base; the terminating point of some particular line or lines in a figure or a curve; the top, or the point opposite the base.
Example Sentences:
(1) CNV1 was recorded at the vertex while CNV3 was recorded at multiple electrode sites to assess topographical differences.
(2) Preceding or during movement, maximum ERD was observed in most cases in central-vertex regions.
(3) Brain stem electric responses, recorded with external electrodes on vertex and ear lobes, are excellent for audiometry of young children.
(4) Umbilical blood-gas status at elective cesarean section with oxygen inhalation for breech presentation (25 cases) was compared with that for vertex presentation (25 cases), so as to confirm the security of full-term breech fetuses delivered by cesarean section under spinal anesthesia.
(5) An evoked brain response can also be elicited simultaneously from the vertex response is affected to the same degree by several different aspects of visual stimuli as is the corresponding occipital response.
(6) N1 and P2 to the last preceding frequent stimulus, the rare (attended target) stimulus, and the following two frequent stimuli were evaluated using 6 reference-independent measures: latency (time of maximal potential range between any two locations), amplitude of maximal potential range, global field power, vertex (Cz) current source density, location of extreme potential, and location of potential centroid.
(7) AEPs were recorded to an "oddball" paradigm from vertex and left and right temporal electrodes.
(8) The MRBPs had earlier onsets during the first runs of skill acquisition than during later training sessions; they occurred earlier when they preceded a stimulus train than when they preceded a single stimulus; the onset was earlier over the vertex than over the premotor area.
(9) In addition, careful parametric baseline studies were performed in each cat to strengthen the evidentiary linkage between wave A as recorded from the vertex in these experiments and previous studies describing the origin and trajectory of wave A in the brainstem reticular formation and several regions of thalamus, including the intralaminar nuclei.
(10) Responses were recorded between needle electrodes placed on the vertex and the ipsilateral ear, with ground at the interorbital line.
(11) A model of sleep phasic events such as vertex waves, K complexes, delta waves and sleep spindles is proposed.
(12) The enhancement results have been confirmed for central brain vertex stimulation using the Sheffield magnet.
(13) Anodal stimulation at the vertex produced complex corticospinal volleys that could be recorded at both sites, with multiple waves analogous to the D and I waves documented in animal experiments.
(14) N140 and P190 (the "vertex potentials") are probably generated bilaterally in the frontal lobes, including orbito-frontal, lateral and mesial (supplementary motor area) cortex.
(15) An otherwise healthy five-year-old girl presented for evaluation of a large patch of erythematous scaling alopecia on the vertex of her scalp.
(16) Oxygen extraction in the breech (Mean: 49.0%) was higher than that in the vertex (32.9%).
(17) As it is quite unlikely that P3 generating sources are strongly active during the processing of the frequent stimulus, this effect is possibly due to a component overlap from the vertex potential.
(18) The frequency of congenital anomaly was also studied in 8,863 infants delivered by breech and vertex presentation.
(19) Carbon particles entering the subarachnoid space over the vertex of the cerebral hemispheres drained along selected paravascular and subfrontal pathways in the subarachnoid space to the cribriform plate and thence into nasal lymphatics and cervical lymph nodes.
(20) As it was not possible to collect sufficient material for valid conclusions on a series of patients with similar uterine activity, fetal size, uterine volume, cervical resistance, and lower uterine segment development; only women in normal labor without disproportion and delivered of infants in the occipitoanterior vertex presentation were included in the study.
Vertical
Definition:
(a.) Of or pertaining to the vertex; situated at the vertex, or highest point; directly overhead, or in the zenith; perpendicularly above one.
(a.) Perpendicular to the plane of the horizon; upright; plumb; as, a vertical line.
(n.) Vertical position; zenith.
(n.) A vertical line, plane, or circle.
Example Sentences:
(1) Vertical gratings are tinged with green and horizontal gratings with pink.
(2) A modification of Mason's vertical banded gastroplasty for morbid obesity is presented, along with experience from 62 treated patients.
(3) When compared with lissencephalic species, a great horizontal fibrillary system (which is vertically arranged in gyral regions) was observed in convoluted brains.
(4) The relapse was 80% in the sagittal plane, 70% in the transverse plane, and 12% in the vertical plane.
(5) However, the effect of prior jaw motion and the effect of the recording site on the EMG amplitudes and on the vertical dimension of minimum EMG activity have not been documented.
(6) Results on resting blood pressure, serum lipids, vital capacity, flexibility, upper body strength, and vertical jump tests were comparable to values found for the sedentary population.
(7) We performed a prospective study on 68 eyes of 68 patients to compare the vertical cup-disk ratio obtained with the video-ophthalmograph to that obtained with manual analysis of black-and-white stereoscopic photographs.
(8) 3-D curves were computed with an apparent rotation around the vertical axis Z.
(9) The following oculomotor paradigms were investigated: horizontal and vertical saccades of different sizes (10-80 degrees), smooth pursuit eye movements, optokinetic and vestibular nystagmus.
(10) From a psychological-vertical aspect the group is rather a common situation in which the individual members remain in their experience separated from each other.
(11) Single vertical spin and electron microscopy analyses of these HDL subpopulations demonstrated that acid elution from the affinity columns caused no detectable change in size and density of the three subpopulation particles.
(12) 'Vertical' sections are plane sections longitudinal to a fixed (but arbitrary) axial direction.
(13) Although active head movements reversed horizontal vestibulo-ocular reflexes, vertical vestibulo-ocular reflexes in light and darkness were normal.
(14) To meet these prerequisites we have introduced some technical refinements: (1) computer-controlled rectilinear translations of the target in combination with different angular positions of the source and (2) computer-controlled rotations of the target around a vertical axis in combination with different angular positions of the source.
(15) These observations suggest that the persistently mobile, vertically positioned unbonded cup remain stable despite the stress of significant trauma.
(16) First, the possibility of "vertical" transmission of the virus was examined, as the Papio stock in Sukhumi was genetically homogeneous.
(17) The "lazy-T" technique consists of a surgical horizontal and vertical shortening of the involved portion of the lower eyelid.
(18) The LVOR in the presence of visual targets (VLVOR) was tested by recording human vertical eye and head movements during self-generated vertical linear oscillation (averaging 2.7 Hz at peak excursion of 3.2 cm) while subjects alternately fixated targets at D = 36, 142, and 424 cm.
(19) During powder compaction on a Manesty Betapress, peak pressures, Pmax, are reached before the punches are vertically aligned with the centres of the upper and lower compression roll support pins.
(20) Accommodation measurements of nine young, emmetropic subjects were obtained with an infrared optometer while they viewed superimposed horizontal and vertical square-wave gratings at various dioptric separations.