Advances in Biomagnetism

Front Matter....Pages i-xx
Biomagnetic Sources and Their Models....Pages 1-18
Principles and Applications of SQUID Sensors....Pages 19-32
Fundamentals on Neuromagnetism....Pages 33-46
Principles of Cardiomagnetism....Pages 47-56
Biomagnetic Studies of Organs Other than the Heart and Brain....Pages 57-66
Evolution of the SQUID and its Use in Biomagnetic Research....Pages 67-72
A Vicennial View of Squid Magnetocardiography....Pages 73-80
Present Status and Future of DC SQUIDs Made from High T c Superconductors....Pages 81-86
Activation of the Human Auditory Cortex by Various Sound Sequences : Neuromagnetic Studies....Pages 87-92
Selective Averaging in Auditory Evoked Magnetic Field Experiments....Pages 93-96
Frequency-Specific Sources of the Auditory N19-P30-P50 Response Detected by a Multiple Source Analysis of Evoked Magnetic Fields and Potentials....Pages 97-100
Replicability for Localization of the P1, N1, and P2 Components of the Auditory Evoked Response in an Unselected Group of Subjects....Pages 101-104
Nonstationary Dynamics of Sequential Magnetic Dipole Source Changes Associated with N100 Auditory Evoked Responses....Pages 105-108
Event Related Potentials and Fields Evoked by Auditory Stimuli: Effects of Interstimulus Interval and Selective Attention....Pages 109-112
Neural Mechanisms of Selective Auditory Attention....Pages 113-116
Neuromagnetic Responses to Infrequent Changes in Periodicity Pitch....Pages 117-120
Paired Tone Presentation Enhances Responses of Human Auditory Cortex to Rare Frequency Changes....Pages 121-124
Neuromagnetic Responses of the Human Auditory Cortex to Different Types of Infrequent Deviant Stimuli....Pages 125-128
Specificity of Neuromagnetic Responses in the Human Auditory Cortex to Consonants of Monosyllable Speech Sounds....Pages 129-132
Short-Latency Somatosensory Evoked Magnetic Fields Recorded over the Brachial Plexus and Cervical Spine in Man....Pages 133-136
Intraoperative Recording of the Magnetic Field of a Human Nerve....Pages 137-140
A Comparative Study of Compound Action Potentials and Currents....Pages 141-144
Estimation of Both Conduction Velocities and the Number of Firing Nerve Fibers from Magnetic Fields Outside a Volume Conductor....Pages 145-148
Source Localisation from Somatosensory Neuromagnetic Data....Pages 149-152
Short Latency Median Nerve Somatosensory Evoked Magnetic Fields and Electrical Potentials....Pages 153-156
On the Frontal Components of Somatosensory Scalp Responses to Median Nerve Stimulation: Neuromagnetic Demonstration of an Anterior. Midline Generator....Pages 157-160
Spatiotemporal Modeling of Somatosensory Evoked Magnetic Fields....Pages 161-164
Magnetic Localization of Somatically Evoked Responses in the Human Brain....Pages 165-168
Evoked and Spontaneous Magnetic Activity of the Human Somatosensory Cortex....Pages 169-172
ECD Tracing for Middle Latencies of Neuromagnetic Responses to Right Tibial Nerve Stimulation....Pages 173-176
Neuromagnetic Localisation of Sensorimotor Cortex Sources Associated with Voluntary Movements in Humans....Pages 177-180
Measurement of Neuromagnetic Fields Preceding Triggered and Self-Paced Finger Movements....Pages 181-184
Neuromagnetic Localization of Late Pain-Related Field Sources....Pages 185-188
Multi-Dimensional Vector Analysis of Evoked Responses....Pages 189-192
Identification of Multiple Sources in Transient Visual Evoked Neuromagnetic Responses....Pages 193-196
Spatial/Temporal Resolution of Multiple Sources: Paths of Activation in Human Visual Cortex....Pages 197-200
A Frequency Domain Technique for Using Evoked Magnetic Fields to Test Multi-Stage Models of Sensory Processing....Pages 201-204
Ultra-High Resolution Analysis of Auditory and Visual Brain Responses Using Zoom-FFT....Pages 205-207
Neuromagnetic Measurements of Visual Responses to Chromaticity and Luminance....Pages 209-212
Brain Activity Related to Spatial Visual Attention....Pages 213-216
Temporal Variability of the Neuromagnetic Evoked Field: Implications for Human Performance Assessment....Pages 217-220
Crossmodal Interactions of Auditory Stimulus Presentation on the Visual Evoked Magnetic Response....Pages 221-224
Scalp Distribution of Magnetic Fields Generated by Horizontal Eye Movements and Eye Blinks....Pages 225-228
A Modality-Specific Neuromagnetic P3....Pages 229-232
Cortical Resource Allocation During Mental Rotation Determined by Magneto- and Electro- Encephalography....Pages 233-236
Alpha Suppression Related to a Cognitive Task....Pages 237-240
Visualizing and Rhyming Cause Differences in Alpha Suppression....Pages 241-244
Phase Relationships in Synchronous Magnetic and Electric Alpha Activity in the Parieto-Occipital Area of the Human Brain....Pages 245-248
Distribution of Phase for Alpha-Rhythm Measured by Multichannel Magnetometer over Occipital Head....Pages 249-252
Coherence Analysis of Alpha Rhythm MEG Measured Simultaneously at Two Positions....Pages 253-256
Method for Locating Sources of Human Alpha Activity....Pages 257-260
Neuromagnetic Imaging of Synchronized MU Activity....Pages 261-264
Sleep Spindles in Magnetoencephalography and Electroencephalography....Pages 265-268
Magnetoencephalography in Epilepsy Research and its Perspectives....Pages 269-272
Recent Developments on the Physiological Basis of Magnetoencephalography (MEG)....Pages 273-278
Application of a Multichannel MEG-System in Temporal Lobe Epilepsy....Pages 279-282
Mapping of MEG and EEG in Normals and Epileptic Patients....Pages 283-286
Template Analysis on Interictal Neuromagnetic Data from Cases of Focal and Generalized Epilepsy....Pages 287-290
Comparison of Dynamic Spatiotemporal Field Structures of Dorsolateral Fronto-Central Seizures and Hand Sensorimotor Cortex....Pages 291-294
Pre- and Postoperative Magnetoencephalography in Partial Epilepsy. A Case Story....Pages 295-298
Multiple Source Modeling of the Human Epileptic Spike Complex in the Magnetoencephalogram....Pages 299-302
A Method to Separate Contributions of Different Foci in Interictal Epileptic Activity....Pages 303-306
Ischemic and Epileptic Lesions Measured by AC- and DC-MEG....Pages 307-310
Neuropathological Dynamics of Magnetic, Auditory Steady-State Responses in Alzheimer’s Disease....Pages 311-314
The Use of Flash and Pattern Evoked Fields in the Diagnosis of Alzheimer’s Disease....Pages 315-318
Objective Evidence of Tinnitus in Auditory Evoked Magnetic Fields....Pages 319-322
Magnetic Observation of Spreading Cortical Depression in Anaesthetized Rabbits....Pages 323-326
Observation of Spreading Cortical Depression in Migraine Patients....Pages 327-330
Comparative Study of Transmembrane Potential and Magnetic Evoked Field Due to Applied Electric Field in the Turtle Cerebellum....Pages 331-334
Conductivity Boundaries May Produce Stronger Magnetic Fields than the Primary Source: Comparison of Three Analytical Methods....Pages 335-338
In Vivo Neuromagnetic Study of Normal and Pathological Intracellular Current in Rat Cortex....Pages 339-342
Contribution Maps in Magnetocardiography....Pages 343-348
High Resolution Magnetocardiography, Source Localization and Multichannel Magnetometry....Pages 349-352
Dynamic Magnetic Study of the Heart Conduction System....Pages 353-356
Evaluation of Techniques Used to Extract His-Purkinje System Spatial Distributions....Pages 357-360
Magnetocardiographic Localization of a Pacing Catheter....Pages 361-364
Magnetocardiographic Localization of Kent Bundles....Pages 365-368
Application of a Biomagnetic Multichannel System to the Comparative Localization of Accessory Conduction Pathways in Patients with WPW Syndrome....Pages 369-372
Detection of Accessory Pathway in Patients with WPW Syndrome by Means of The Isomagnetic Map and MRI....Pages 373-376
ECG and MCG Studies on the His-Purkinje Activity in a Case of Congenital Heart Block....Pages 377-380
High-Resolution Magnetocardiographic Mapping of Pre-Excitation in Wolff-Parkinson-White Syndrome....Pages 381-383
Analysis of High Resolution MCG Recordings of Patients with Ventricular Tachycardia....Pages 385-388
Detection of Magnetic Atrial Flutter Waves in Isolated Rabbit Hearts....Pages 389-392
The Magnetic Field of Isolated Rabbit Heart....Pages 393-396
What Does an Electrocardiologist Expect of a Magnetocardiogram?....Pages 397-402
Clinical Value of Magnetocardiographic Mapping....Pages 403-408
Biomagnetic Imaging in the Cardiac Catheterization Laboratory....Pages 409-415
Detection of the Abnormal Repolarization Vector in Diabetes Mellitus by Means of the Isomagnetic Map....Pages 417-420
Magnetocardiography in Patients with the Long QT-Syndrome....Pages 421-424
Measurement of Cardiac Magnetic Field Vector....Pages 425-428
Classification of Infarcts Using Electric and Magnetic Inverse Solutions....Pages 429-432
Discrimination between Patients with Myocardial Infarction and those with Ventricular Tachycardia using Magnetic and Potential Map Extrema and Trajectory Plots....Pages 433-436
Magnetocardiographic and Electrocardiographic Recordings of Patients with Ventricular Tachycardia....Pages 437-440
Atrial and Ventricular Tachycardias : Invasive Validation and Reproducibility of Magnetocardiographic Imaging....Pages 441-444
The Influence of Heart Motion on Magnetic Fields....Pages 445-448
Effect of Constitutional Variables on Magnetocardiogram....Pages 449-452
Magnetocardiography in Patients with Cardiomyopathy and Operated Congenital Heart Disease....Pages 453-456
The Magnetocardiogram in Patients with Systolic and Diastolic Overload of the Right Ventricle....Pages 457-460
Magnetic Microparticles can Measure Whole-Body Clearance, Cell Organelle Motions, and Protein Polymer Viscoelasticity....Pages 461-467
Estimation of Energy of Intracellular Movement and Apparent Viscosity by Magnetometry....Pages 469-472
Intracellular Motility of Pulmonary Macrophages from Smokers and Nonsmokers....Pages 473-476
Welding Fume Retention in Lungs of Previously Unexposed Subjects....Pages 477-480
 In Vivo SQUID Measurements of the Magnetised Human Thorax....Pages 481-484
A Study of Magnetic Contaminants in Post Mortem Lung Samples from Asbestos Miners....Pages 485-488
Effects of Latex and Different Doses of Silica on Behavior of Iron Particles in Rabbit Lungs....Pages 489-492
Research on Biomagnetic Technique Used for Tracing Pneumoconiosis of Metallurgical Workers....Pages 493-496
The Hamburg Biosusceptometer for Liver Iron Quantification....Pages 497-500
The Calibration Problem in Liver Iron Susceptometry....Pages 501-504
Magnetic Mapping of DC Fields Related to Tissue Susceptibility in the Human Body....Pages 505-508
Ionic Currents within Developing Chick Eggs....Pages 509-512
Magnetic Field Measurements of the Electric Organ of Gymnotus Carapó ....Pages 513-516
Measurement of Magnetic Field near an Acute Surgical Injury on the Rabbit’s Thigh....Pages 517-520
Biochemical Magnetite Formation and its Application....Pages 521-524
Immunosensor Using Bacterial Magnetites....Pages 525-528
Localized Stimulation of the Human Cortex by Opposing Magnetic Fields....Pages 529-532
Volume Current Effects on MEG and Modeling....Pages 533-538
Impact of Different Noise Sources on Dipole Localization in the Spherical Model: A Simulation....Pages 539-542
Monte Carlo Analysis of Localization Errors in Magnetoencephalography....Pages 543-546
Variational Principles for the Return Current in Encephalography....Pages 547-550
Magnetoencephalographic Localization of Simulated Evoked Response Sources Affirms the Importance of Adequate Modelling....Pages 551-554
Monte Carlo Study of Confidence Region Accuracy for MEG Inverse Dipole Solutions....Pages 555-558
Influence of the Finite Pickup Coil Size on the Localization of Current Sources with Quadrupolar Components....Pages 559-562
Considerations on a Spatio-Temporal Two-Dipole Model....Pages 563-566
Rule-Based Location of Multiple Current-Dipole Sources from Biomagnetic Data....Pages 567-570
A Linear Estimation Approach to Biomagnetic Imaging....Pages 571-574
Discussion of Biomagnetic Imaging System and Reconstruction Algorithm....Pages 575-578
Direct Approach to an Inverse Problem: A Trial to Describe Signal Sources by Current Elements Distribution....Pages 579-582
Magnetic Fields of Current Monopoles....Pages 583-586
Localised and Distributed Source Solutions for the Biomagnetic Inverse Problem I....Pages 587-590
Localised and Distributed Source Solutions for the Biomagnetic Inverse Problem II....Pages 591-594
Random Dipoles as a Model for Spontaneous EEG- and MEG-Activity....Pages 595-598
Theory and Properties of Lead Field Synthesis Analysis....Pages 599-602
Minimum Norm Estimation of Current Distributions in Realistic Geometries....Pages 603-606
Localizing Abnormalities in Mapping....Pages 607-610
Preliminary Tests of MEG and EEG Localization in a Homogeneous Saline Head....Pages 611-614
Projective Methods for the Magnetic Direct Problem....Pages 615-618
Mechanism of Flux Reversal Phenomena in Spatial Distributions of the Magnetoencephalograms....Pages 619-622
Constructing a Realistically Shaped Model of the Human Head....Pages 623-625
Compression of Biomagnetic Data by Combining Linear Predictive and Variable-Length Coding....Pages 627-630
Interactive Control and Data Processing in Multichannel SQUID Instrumentation Systems....Pages 631-634
Channel Capacity of Multichannel Magnetometers....Pages 635-638
A 24-Channel Planar Gradiometer: System Design and Analysis of Neuromagnetic Data....Pages 639-644
Improved SQUID Magnetometer with an External Feedback Circuit....Pages 645-648
Designing Planar Gradiometer Arrays : Preliminary Considerations....Pages 649-652
Pb-In Wire Bonding for Superconducting Connection between Thin-Film DC-SQUID and Pickup Coil....Pages 653-656
A Single-Chip SQUID....Pages 657-660
A Multi-Channel Biomagnetometer....Pages 661-664
A Nine Channel DC SQUID System for Biomagnetism....Pages 665-668
Development and Performance of a Multichannel System for Studies of Biomagnetic Signals of Brain and Heart....Pages 669-672
A 24-Channel Magnetometer for Brain Research....Pages 673-676
MicroSQUID: A Close-Spaced Four Channel Magnetometer....Pages 677-679
Preliminary Measurements with MicroSQUID....Pages 681-684
Sequential Spatially Distributed Activity of the Human Brain Detected Magnetically by CryoSQUIDs....Pages 685-688
The LANL Gradiometer Orientation Device....Pages 689-692
Magnetometer Position Indicator for Multichannel MEG....Pages 693-696
Subject and Gradiometer Positioning for MEG Recording: A Preliminary Report....Pages 697-700
The Positioning of Magnetometer Pickup Coil in Dewar by Artificial Signal Source....Pages 701-704
Neuromagnetometer ® Calibration Using an Array of Small Coils....Pages 705-708
Spatial Fourier Technique for Calibrating Gradiometers....Pages 709-712
On the Spatial Locating Accuracy of Multichannel Magnetometers....Pages 713-716
Experimental Accuracy of Localization of Current Dipoles in a Spherical Phantom....Pages 717-720
Environmental Noise Cancellation for Biomagnetic Measurements....Pages 721-724
Electronic Noise Suppression in Multichannel Neuromagnetic System....Pages 725-728
Thermal Noise of a Biomagnetic Measurement Dewar....Pages 729-732
Noise Cancellation in Biomagnetometers....Pages 733-736
Three-Dimensional Volumetric Reconstruction for Neuromagnetic Source Localization....Pages 737-740
An Integrated Stimulus Generation and Data Acquisition System for the Investigation of Auditory Evoked Magnetic Fields....Pages 741-744
Study on a Design Method of Magnetically Shielded Room Using Models....Pages 745-748
Preparation of High-T c Superconducting Magnetic Shields by a Low Pressure Plasma Spraying....Pages 749-752
Back Matter....Pages 753-771