نتایج جستجو برای: wave latency
تعداد نتایج: 261332 فیلتر نتایج به سال:
When a hind-limb muscle nerve or a lumbar dorsal root of rats was stimulated, a fast and well-synchronized wave could be lead off from the appropriate lumbar ventral root and was named `the fast synchronous wave'. While this fast syn chronous wave resembled in shape and appearance to the cat monosynaptic reflex, it differed in some features from the latter, i.e., rather long latency, absence of...
STUDY OBJECTIVES To evaluate the impact of enhanced slow wave sleep (SWS) on behavioral, psychological, and physiological changes resulting from sleep restriction. DESIGN A double-blind, parallel group, placebo-controlled design was used to compare gaboxadol (GBX) 15 mg, a SWS-enhancing drug, to placebo during 4 nights of sleep restriction (5 h/night). Behavioral, psychological, and physiolog...
Motor evoked potentials (MEPs) to magnetic transcranial stimulation (TCS) were recorded from right abductor digiti minimi (ADM) and first dorsal interosseous (FDI) muscles, sharing the same peripheral innervation but engaged in two different motor demands. In seven healthy and trained subjects, the latencies, amplitudes and variability of MEPs were investigated under the following, randomly int...
BACKGROUND Needle EMG may be negative in mild or predominantly sensory lumbosacral radiculopathies. In such cases, an increase in the latency of the soleus H-reflex is a useful diagnostic criterion for establishing sensory fiber compromise at the S1 root level. However, if clinical signs of radicular involvement are lacking, the latency of the H-reflex is normal. We therefore studied the recrui...
Performance of adaptive optics (AO) compensation for beam control is quantified via wave-optical propagation, sensing, and control methods using wind tunnel measurements of aero-optical disturbances in addition to Kolmogorov turbulence distributed over a laser path. For Kolmogorov turbulence the residual phase variance scales as (fG/f3dB) , where fG is the Greenwood frequency for the propagatio...
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