Functional Brain Imaging |
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Page 19
... segment . The axon arises abruptly from the cell body . The axonal initial segment begins at the level defined by the arrows . In the region of the initial segment there is an electron dense undercoating ( D ) beneath the axolemma . The ...
... segment . The axon arises abruptly from the cell body . The axonal initial segment begins at the level defined by the arrows . In the region of the initial segment there is an electron dense undercoating ( D ) beneath the axolemma . The ...
Page 35
... segment , located just distal to the axon hillock . The region of the axonal initial segment is particularly dense in voltage - gated sodium channels , and it has the lowest depolarization threshold . Action potentials are generated if ...
... segment , located just distal to the axon hillock . The region of the axonal initial segment is particularly dense in voltage - gated sodium channels , and it has the lowest depolarization threshold . Action potentials are generated if ...
Page 157
... segments of the object , we need to examine the types of information that can be encoded into each segment and how we can alter this information . Therefore , we will examine these two aspects in the reverse order , first considering ...
... segments of the object , we need to examine the types of information that can be encoded into each segment and how we can alter this information . Therefore , we will examine these two aspects in the reverse order , first considering ...
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