Functional Brain Imaging |
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Page 335
... activity is perpendicular to the skull surface , this provides for excellent localization of the activity . However , if the vector orientation is oblique , the location of the field maxima and minima may be removed from the actual ...
... activity is perpendicular to the skull surface , this provides for excellent localization of the activity . However , if the vector orientation is oblique , the location of the field maxima and minima may be removed from the actual ...
Page 339
... activity at frontal electrodes , a consequence of the reference strategy , not the presence of alpha generators in ... activity is often unreactive to any stimuli . A posterior beta rhythm , intermixed or alternating with alpha , is also ...
... activity at frontal electrodes , a consequence of the reference strategy , not the presence of alpha generators in ... activity is often unreactive to any stimuli . A posterior beta rhythm , intermixed or alternating with alpha , is also ...
Page 340
... activity . As one drifts into stage II sleep , several changes occur in the EEG ( Fig . 8-19 ) . The most prominent of these is the emergence of large - amplitude ( 75+ μV ) , bilaterally synchronous , and symmetric vertex waves at Cz ...
... activity . As one drifts into stage II sleep , several changes occur in the EEG ( Fig . 8-19 ) . The most prominent of these is the emergence of large - amplitude ( 75+ μV ) , bilaterally synchronous , and symmetric vertex waves at Cz ...
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 |
Common terms and phrases
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