The Vestibular System A Sixth Sense
, by Goldberg, Jay M.; Wilson, Victor J.; Cullen, Kathleen E.; Angelaki, Dora E.; Broussard, Dianne M.; Buttner-Ennever, Jean; Fukushima, Kikuro; Minor, Lloyd B.- ISBN: 9780195167085 | 0195167082
- Cover: Hardcover
- Copyright: 1/23/2012
Jay M. Goldberg, The Department of Neurobiology, Pharmacology and Physiology, University of Chicago, Chicago, IL.
Victor J. Wilson, Laboratory of Neurophysiology, Rockefeller University, New York, NY.
Kathleen E. Cullen, Laboratory of Neurophysiology, McGill University, Montreal, Quebec, Canada.
Dora E. Angelaki, Department of Anatomy and Neurobiology, Division of Biology and Biomedical Sciences
School of Medicine, Washington University in St. Louis, St. Louis, MO.
Dianne M. Broussard, Division of Cellular and Molecular Biology, Toronto Western Hospital, Toronto, Ontario
Canada
Jean A. Büttner-Ennever, Institute of Anatomy III, Ludwig-Maximilians University of Munich, Munich, Germany.
Kikuro Fukushima, Department of Physiology, Hokkaido University School of Medicine, Kitaku, Sapporo, Japan.
Lloyd B. Minor, Department of Otolaryngology, Head and Neck Surgery, Department of Neuroscience, The Johns Hopkins University School of Medicine, Baltimore, MD.
Introduction | |
The Vestibular System in Everyday Life | p. 3 |
Overview of the Vestibular System | p. 3 |
Visual Acuity and the Vestibulo-Ocular Reflex | p. 4 |
Air-Righting Reflex in the Cat | p. 7 |
Post-Rotational Reactions | p. 8 |
Positional Alcohol Nystagmus | p. 10 |
Motion Sickness | p. 12 |
Vection Illusions | p. 13 |
The Subjective Visual Vertical | p. 13 |
Adaptive Plasticity | p. 15 |
Path Finding and Spatial Orientation | p. 16 |
Postural Control | p. 17 |
Summary | p. 17 |
Selected Readings | p. I8 |
Peripheral Vestibular System | |
Structure of the Vestibular Labyrinth | p. 23 |
Gross and Microscopic Anatomy | p. 23 |
Fine Structure of the Sensory Regions | p. 25 |
Hair Cells | p. 28 |
Supporting Cells | p. 33 |
Transitional Regions | p. 33 |
Regional Variations in Cellular Architecture and Afferent Innervation | p. 33 |
Crista Ampullaris | p. 35 |
Utricular Macula | p. 35 |
Saccular Macula | p. 37 |
Efferent Innervation | p. 38 |
Summary | p. 40 |
Selected Readings | p. 42 |
Hair Cell Transduction | p. 45 |
Mechanoelectric Transduction | p. 46 |
Basolateral Currents | p. 49 |
Neurotransmitter Release and Presynaptic Calcium Channels | p. 50 |
Calcium Channels | p. 51 |
Neurotransmitter Release | p. 51 |
Postsynaptic Mechanisms | p. 55 |
Synaptic Transmission Involving Type I Hair Cells | p. 56 |
Spike Encoding | p. 59 |
Efferent Neurotransmission | p. 60 |
Summary | p. 63 |
Selected Readings | p. 63 |
Physiology of the Vestibular Organs | p. 70 |
General Features of the Vestibular Organs | p. 70 |
Vestibular Organs Are Inertial Sensors | p. 70 |
Resting Discharge | p. 71 |
Discharge Regularity | p. 72 |
Information Transmission | p. 76 |
Semicircular Canals | p. 76 |
Directional Properties | p. 78 |
Macromechanics and the Torsion-Pendulum Model | p. 78 |
Interspecies Variations and Canal Dimensions | p. 84 |
Afferent Response Dynamics | p. 85 |
Variations in Gain and Phase | p. 90 |
Afferent Morphology and Physiology | p. 92 |
Dynamic Range of Afferent Discharge | p. 93 |
Otolidi Organs | p. 94 |
Directional Properties | p. 94 |
Macromechanics and the Otoconial Membrane | p. 100 |
Afferent Response Dynamics | p. 104 |
Dynamic Range of Afferent Discharge | p. 105 |
Variations in Gain and Phase | p. 107 |
Afferent Morphology and Physiology | p. 107 |
Summary | p. 109 |
Selected Readings | p. 109 |
The Efferent Vestibular System | p. 116 |
Comparative Anatomy of Central Efferent Pathways | p. 116 |
Responses of Afferents to Electrical Activation of the EVS | p. 118 |
Mammals | p. 118 |
Non-Mammals | p. 121 |
Responses of Efferents to Natural Stimulation | p. 125 |
Efferent-Mediated Responses of Afferents | p. 126 |
Possible Functions of Efferents in Mammals | p. 129 |
Summary | p. 130 |
Selected Readings | p. 131 |
Central Vestibular System | |
Neuroanatomy of Central Vestibular Pathways | p. 137 |
Introduction | p. 137 |
The Vestibular Nuclei: Subdivisions and Anatomical Organization | p. 137 |
Medial Vestibular Nucleus | p. 138 |
Lateral Vestibular Nucleus | p. 141 |
Superior Vestibular Nucleus | p. 142 |
Descending Vestibular Nucleus | p. 142 |
y Group | p. 142 |
Interstitial Nucleus of the Vestibular Nerve | p. 142 |
Associated Cell Groups | p. 143 |
Projection and Intrinsic Neurons | p. 144 |
Connections with the Ipsilateral Vestibular Nerve | p. 145 |
Commissural Pathways | p. 148 |
Vestibulo-Ocular and Optokinetic Systems | p. 148 |
Semicircular Canal Projections to Oculomotor Neurons | p. 148 |
Otolith Projections to Oculomotor Neurons | p. 150 |
Nucleus Propositus Hypoglossi | p. 152 |
Interstitial Nucleus of Cajal | p. 153 |
Reticular Formation | p. 154 |
Optokinetic Padiways | p. 154 |
Vestibulospinal Systems | p. 156 |
Medial Vestibulospinal Tract | p. 156 |
Lateral Vestibulospinal Tract | p. 157 |
Vestibulo-Ocular Cervical Padiways | p. 158 |
Odier Vestibulospinal Tracts | p. 161 |
Reticulospinal Tracts | p. 161 |
Spinal Projections to the Vestibular Nuclei | p. 162 |
Vestibulocerebellar Relations | p. 163 |
Functional Organization | p. 164 |
Basic Circuitry | p. 166 |
Vestibular Projections to the Cerebellum | p. 167 |
Prepositus Nucleus | p. 168 |
Projections from the Deep Cerebellar Nuclei to the Vestibular Nuclei | p. 169 |
Projections from the Cerebellar Cortex to the Vestibular Nuclei | p. 169 |
Cerebellar Cortical Modules | p. 170 |
Lateral Reticular Nucleus | p. 173 |
Vestibulo-Paramedian Tract Projections | p. 174 |
Vestibulo-Autonomic Connections | p. 174 |
Vestibular Connections with the Neocortex | p. 175 |
Pathways Involving the Hippocampal Formation | p. 177 |
Summary | p. 178 |
Selected Readings | p. 180 |
List of Abbreviations | p. 181 |
Synaptic Mechanisms in the Vestibular Nuclei | p. 191 |
Historical Perspective | p. 191 |
Basic Circuitry of the Vestibular Nuclei | p. 192 |
Ipsilateral Vestibular Nerve Inputs | p. 192 |
Commissural Connections | p. 195 |
Neurotransmitters in the Vestibular Nuclei | p. 198 |
Transmission between the Vestibular Nerve and Secondary Neurons | p. 200 |
Transmission within the Vestibular Nuclei | p. 201 |
Output Pathways of the Vestibular Nuclei | p. 201 |
Properties of Individual Neurons | p. 201 |
Resting Discharge | p. 201 |
In vitro Electrophysiology | p. 202 |
Central Projections of Regular and Irregular Afferents | p. 206 |
Intracellular Labeling of Vestibular-Nerve Fibers | p. 206 |
Electrophysiological Studies | p. 207 |
Functional Ablation of Irregular Afferents | p. 209 |
Convergence from Separate Vestibular Organs | p. 210 |
Canal-Canal Convergence | p. 211 |
Otolith-Otolith Convergence | p. 213 |
Spatio-Temporal Convergence | p. 214 |
Canal-Otolith Convergence | p. 217 |
Convergence from Somatosensory Receptors | p. 218 |
Input from Neck Afferents | p. 219 |
Input from Limb Afferents | p. 219 |
Neck-Vestibular Convergence in the Vestibular Nuclei | p. 220 |
Summary | p. 221 |
Selected Readings | p. 221 |
Vestibulo-Ocular and Vestibulospinal Mechanisms | |
An Oculomotor Tutorial | p. 231 |
Overview and Classification of Eye Movement Types | p. 231 |
Ocular Structure and Functional Implications | p. 232 |
The Extraocular Eye Muscles | p. 232 |
Mechanics of the Oculomotor Plant | p. 234 |
Oculomotor Motoneuron Discharge | p. 235 |
Plant Mechanics and Premotor Control | p. 237 |
Gaze Redirection | p. 240 |
Saccades | p. 240 |
Smooth Pursuit | p. 242 |
Vergence | p. 242 |
Gaze Stabilization | p. 243 |
Vestibulo-Ocular Reflexes | p. 243 |
Optokinetic System | p. 245 |
Interactions between Eye and Head Movements | p. 245 |
Summary | p. 246 |
Selected Readings | p. 246 |
Vestibulo-Ocular Reflexes | p. 249 |
Semicircular-Canal-Related Angular VOR | p. 249 |
General Properties of the Canal-Related AVOR | p. 249 |
AVOR during High-Frequency Rotations | p. 252 |
AVOR at Low Frequencies: Velocity Storage | p. 252 |
AVOR-Visual Interactions: The Optokinetic System | p. 255 |
AVOR in Three Dimensions | p. 256 |
Otolith-Ocular Reflexes | p. 259 |
Tilt VOR | p. 259 |
Otolith Influences on the AVOR during Off-Vertical Axis Rotations | p. 260 |
Otolith Influences on the AVOR during Canal-Otolith Conflict | p. 264 |
Translational VOR (TVOR) | p. 264 |
Optic Flow during Translation | p. 266 |
TVOR Properties | p. 268 |
Visual Mechanisms for Short Latency Visual Compensation during Translation | p. 271 |
Distinguishing Tilts from Translations | p. 271 |
Differences between the AVOR and the TVOR | p. 272 |
Comparative Adaptations | p. 273 |
Summary | p. 274 |
Selected Readings | p. 274 |
The Vestibulospinal System and Postural Control | p. 280 |
Reflexes Versus Multisensory Strategies | p. 280 |
Multisensory Strategies | p. 281 |
Vestibular Reflexes: General Considerations | p. 284 |
Vestibulocollic Reflexes (VCR) | p. 287 |
The Angular VCR | p. 287 |
The Linear VCR Evoked by Translation and Tilts | p. 293 |
The Cervicocollic Reflex | p. 294 |
Control Systems Analysis of the Head-Neck Plant | p. 295 |
Head Plant | p. 297 |
Vestibulocollic Reflex | p. 298 |
Cervicocollic Reflex | p. 302 |
Reflex Interactions | p. 302 |
Use of Control Systems Models | p. 303 |
Vestibulospinal and Neck Reflexes Acting on the Limbs | p. 303 |
Spatial and Temporal Properties of the Reflexes | p. 303 |
Afferent Origin of the Reflexes | p. 305 |
Neural Substrate of the Reflexes | p. 306 |
Vestibulospinal Actions on Hindlimb Motoneurons | p. 306 |
Vestibulospinal Actions on Forelimb Motoneurons | p. 307 |
Actions on Fusimotor Neurons | p. 310 |
Tonic Neck Reflexes | p. 311 |
Summary | p. 311 |
Selected Readings | p. 312 |
Signal Processing in Alert Animals | |
Signal Processing in Vestibular Nuclei (Vn) of Alert Animals During Natural Behaviors | p. 321 |
Introduction | p. 321 |
Classes of Neurons in Head-Restrained, Alert Monkeys | p. 322 |
Position-Vestibular-Pause (PVP) Neurons | p. 323 |
Vestibular Only (VO) and Vestibular-Pause Cells | p. 325 |
Eye-Head (EH) Neurons | p. 327 |
Burst-Tonic (BT) Neurons | p. 330 |
Dynamics of Neuronal Responses | p. 332 |
Frequency Response during Sinusoidal Rotations | p. 332 |
Response Linearity | p. 332 |
Velocity Storage | p. 332 |
Response to Linear Translations in Alert Head-Restrained Monkeys | p. 335 |
Distinguishing Translation from Tilt | p. 336 |
Interactions with the Oculomotor Pathways that Control Pursuit Eye Movements | p. 338 |
Integration of Inputs from Vestibular and Optokinetic Pathways | p. 339 |
VN Modulation during the OKR | p. 339 |
Optokinetic Pathways to the VN | p. 343 |
Integration of Vestibular and Proprioceptive Inputs | p. 344 |
Differential Processing of Active Versus Passive Head Movements | p. 346 |
Neuronal Responses during Active Versus Passive Head Movement | p. 347 |
Mechanisms for the Differential Processing of Active Versus Passive Head Movement | p. 347 |
Vestibular Processing Depends on Current Gaze Strategy | p. 351 |
Vestibular Processing during Voluntary Gaze Shifts | p. 352 |
Vestibular Processing during Visual Tracking; VOR Cancellation and Eye-Head Pursuit | p. 354 |
Vestibular Processing during Near Versus Far Viewing | p. 355 |
Summary | p. 355 |
Selected Readings | p. 357 |
The Cerebellum and the Vestibular System | p. 364 |
Overview of Signal Processing in the Cerebellum | p. 364 |
The Basic Cerebellar Circuit | p. 364 |
Vestibular Inputs Are Specific to Localized Regions of the Cerebellum | p. 365 |
Nodulus and Ventral Uvula | p. 365 |
Mossy Fiber Inputs | p. 365 |
Climbing Fiber Inputs | p. 367 |
Efferent Connections | p. 367 |
Neuronal Responses | p. 369 |
Lesions and Function | p. 372 |
Flocculus and Ventral Paraflocculus | p. 374 |
Mossy Fiber Inputs | p. 377 |
Climbing Fiber Inputs | p. 377 |
Efferent Projections of the Flocculus | p. 377 |
Differences between the Flocculus and Ventral Paraflocculus | p. 378 |
Neuronal Responses | p. 379 |
Complex Spikes | p. 380 |
Simple Spikes | p. 383 |
Changes in Neuronal Responses following VOR Learning | p. 386 |
Lesions and Function | p. 386 |
Lesions Studies Emphasize the Role of the Flocculus in VOR Adaptation and Motor Learning | p. 388 |
The Vermis of the Anterior and Posterior Lobes | p. 389 |
The Deep Cerebellar Nuclei | p. 391 |
Fastigial Nucleus | p. 392 |
Rostral Fastigial Nucleus | p. 392 |
Caudal Fastigial Nucleus | p. 393 |
The Interposed Nuclei | p. 397 |
Dentate Nuclei | p. 397 |
Summary | p. 397 |
Selected Readings | p. 398 |
Functional Considerations | |
Learning and Compensation in the Vestibular System | p. 409 |
Motor Learning in the Vestibulo-Ocular Reflex | p. 409 |
The Adaptive Capabilities of the VOR | p. 410 |
Signal Flow in the VOR Network | p. 411 |
Rules for the VOR and Motor Learning | p. 413 |
Possible Sites of Motor Learning: Cerebellum Versus; Brain Stem | p. 413 |
Evidence for Sites of Learning and Memory | p. 414 |
Possible Cellular Mechanisms of Synaptic Plasticity | p. 418 |
Consolidation of VOR Motor Memory | p. 424 |
Generalization: Can Learning Be Applied to New Situations? | p. 425 |
Compensation for Vestibular Damage | p. 427 |
Uninilateral Labyrinthectomy | p. 427 |
Activity in the Vestibular Nuclei following Labyrinthectomy | p. 429 |
Cellular Mechanisms of Compensation in the Vestibular Nuclei | p. 431 |
The Role of the Cerebellum in Compensation | p. 434 |
Summary | p. 435 |
Selected Readings | p. 435 |
Cortical Representations of Vestibular Information | p. 443 |
Introduction | p. 443 |
Historical Perspective | p. 443 |
Multiple Representations of Vestibular Signals in the Cerebral Cortex | p. 444 |
Visuomotor Areas in Frontal Cortex | p. 446 |
Extrastriate Visual Cortex | p. 449 |
Ventral Intraparietal Area | p. 453 |
Parieto-Insular Vestibular Cortex, Area 2v and Area 3a | p. 454 |
Ascending Vestibular Pathways through the Thalamus | p. 455 |
Descending Cortical Information Affecting Vestibular Responsiveness in the Vestibular Nuclei | p. 455 |
Vestibular Influences in the Head-Direction Circuit of the Limbic System | p. 457 |
Summary | p. 460 |
Selected Readings | p. 460 |
Reference Frames for the Coding of Vestibular Signals | p. 467 |
Definitions of Coordinate Systems and Reference Frames | p. 468 |
Head- Versus Body-Centered Reference Frames: Vestibular-Neck Proprioceptive Interactions | p. 468 |
Head- Versus Eye-Centered Reference Frames for Self-Motion Perception: Vestibular-Visual Interactions in Extrastriate Visual Cortex | p. 472 |
Head- Versus World-Centered Reference Frames: Canal-Otolith Convergence for Inertial Motion Detection | p. 476 |
Computational Solution for the Two Ambiguities of Peripheral Vestibular Sensors | p. 478 |
The Rotation Problem: Allocentric Coding of Angular Velocity | p. 478 |
The Linear Acceleration Problem: Evidence for Segregation of Tilt and Translation | p. 480 |
Tilt-Translation Exceptions | p. 481 |
Neural Representations of Inertial Motion | p. 483 |
Implications for Canal-Canal and Otolith-Canal Convergence | p. 485 |
Multisensory Influences | p. 487 |
Summary | p. 487 |
Selected Readings | p. 487 |
Clinical Disorders | |
Clinical Manifestations of Peripheral Vestibular Dysfunction | p. 495 |
Prevalence and Impact of Vestibular Disorders | p. 496 |
Diagnosis of Vestibular Disorders | p. 497 |
Planes of Individual Canals and Direction of Eye Movements | p. 504 |
Benign Paroxysmal Positional Vertigo | p. 504 |
Positional Alcohol Nystagmus | p. 504 |
Superior Semicircular Canal Dehiscence Syndrome | p. 507 |
Recovery of the Horizontal VOR after Unilateral Labyrinthectomy | p. 508 |
Multisensory Control of Posture | p. 509 |
Disorders of Otolith Function | p. 511 |
Clinical Tests of Vestibular Function | p. 512 |
Caloric Test | p. 512 |
Rotational Chair Tests | p. 514 |
Quantitative Evaluation of the VOR Evoked by Rapid Head Movements | p. 514 |
Vestibular-Evoked Myogenic Potentials | p. 516 |
Future Directions | p. 517 |
Hair-Cell Regeneration | p. 517 |
Vestibular Prosthesis | p. 518 |
Summary | p. 519 |
Selected Readings | p. 519 |
Index | p. 525 |
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