Functional Brain Imaging |
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Page 30
... potential at this equilib- rium is called the potassium equilibrium potential . For the described situation , compartment A will be nega- tively charged relative to compartment B , even though the overall number of positive potassium ...
... potential at this equilib- rium is called the potassium equilibrium potential . For the described situation , compartment A will be nega- tively charged relative to compartment B , even though the overall number of positive potassium ...
Page 31
... potential is mostly defined by the relevant potassium equilibrium potential . If the transmembrane movement of sodium and Na + channel K + channel Vesicle Ca ++ channel Ca ++ Fig . 2-25 . When an action potential invades a presynaptic ...
... potential is mostly defined by the relevant potassium equilibrium potential . If the transmembrane movement of sodium and Na + channel K + channel Vesicle Ca ++ channel Ca ++ Fig . 2-25 . When an action potential invades a presynaptic ...
Page 32
... potential is 37 % of that found at the site of current injection . If the injected current is small , it causes a transient depolarization , with the resting membrane potential quickly reestablished once the current is turned off . The ...
... potential is 37 % of that found at the site of current injection . If the injected current is small , it causes a transient depolarization , with the resting membrane potential quickly reestablished once the current is turned off . The ...
Contents
Introduction to Brain Imaging | 1 |
Computerized Axial Tomography | 97 |
Magnetic Resonance Imaging | 145 |
Copyright | |
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Functional Brain Imaging William W. Orrison,Jeffrey Lewine,John Sanders,Michael F. Hartshorne Limited preview - 2017 |
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abnormal activity ALFMA arterial auditory Axial axon basal ganglia brain capillary cells central central sulcus cerebral blood flow chemical shift clinical coil computed computed tomography contrast agent cortex cortical decreased demonstrating detection diffusion dipole disease effects encoding epilepsy extracellular field strength FMRI focal frequency functional Gd-DTPA glucose gradient HMPAO infarction inhomogeneous injection lesions Magn Reson magnetic field magnetic resonance imaging mapping measured membrane metabolism methods motor msec neoplasms nerve nervous system neural neuromagnetic neurons normal Nucl nuclei oxygen paramagnetic patients pattern peak perfusion phase positron emission tomography posterior processing projections proton pulse Radon transform rCBF receptors relaxation scan seizures sensitivity sequences signal changes signal intensity slice SMRM Annual Meeting somatosensory spatial SPECT spectra spikes spin echo stimulation studies T2-weighted techniques temporal lobe thalamus tion tissue tumors uptake visual voxel white matter