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Brain and Perception: Holonomy and Structure in Figural Processing PDF

406 Pages·1991·10.654 MB·English
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Brain and Perception HoLonomy and Structure in FiguraL Processing Karl H. Pribram Stanford University and Radford University Appendices in collaboration with Kunio Yasue and Mari Jibu Notre Dame Seishin University Okayama, Japan NewYork London FirstpublishedbyLawrenceErlbaurnAssociates,Inc. Thiseditionpublished20II byRoutledge: Routledge Routledge Taylor&FrancisGroup Taylor&FrancisGroup 711ThirdAvenue 27ChurchRoad NewYork,NY10017 Hove,EastSussexBN32FA Thestudiesreported and themanuscriptwere madepossiblebygrantsfromtheNationalInstitutes ofHealth, theOfficeofNavalResearch, StevenDeVoreandhisSybervisionCorporation,Walter Morrisandhisfoundation, theFeldenkraisfuundation andPaulLarsenoftheSummit Organization. Theirsupportisgratefullyacknowledged. Copyright © 1991 byLawrenceErlbaumAssociates,Inc. Allrightsreserved. Nopartofthebookmaybereproducedin anyform, byphotostat,microform, retrievalsystem,oranyother means, withoutthepriorwrittenpermissionofthepublisher. LawrenceErlbaumAssociates, Inc., Publishers 365Broadway Hillsdale, NewJersey07642 LibraryofCongressCataloging-in-PublicationData Pribram,KarlH., 1919- Brainandperception:holonomyandstructureinfigural processing/byKarlH. Pribram. p. cm. Collectionofnine lectures. ISBN0-89859-995-4 I. Brain. 2. Perception. 3. Cognition. I. Title. [DNLM: 1. Brain-physiology. 2. PatternRecognition. 3. Perception. WL300P945b] QP376.P674 1991 612.8'2-dc20 DNLMIDLC forLibraryofCongress 89-71539 CIP One must conclude, as afirmly fued scientific generalization, that the properties of the external world are rarely represented in a straight-forward way in the human responses triggered in that world. Should perception therefore be expected to be disorganized and chaotic? Not at all. ... The reasonfor the apparent disjunc tion between external stimulus properties and those of the final percept is not hard to find. The physiological organism, standing between these two end terms, has dimensions of its own to con tribute, makes its own transformations and creates its own . . . functional relationships in the devious pathsfrom peripheral recep tor processes tofinal response mechanism. Frank Geldard, pp. 20-21 Sensory Saltation, Inaugural MacEachran Memorial Lecture, 1975 There are two unavoidable gaps in any behavioral account: one between the stimulating action ofthe environmentand the response ofthe organism and one between consequences and the resulting change in behavior. Only brainscience canfillthose gaps. In doing so it completes the account; it does not give a different account of the same thing. B. F. Skinner (p. 18, 1989) Contents Preface xv Motive xv Acknowledgments xix Viewpoint xxii Introduction Realism xxiv Computation and Representation xxv Summary xxix PROLEGOMENON Lecture 1. Aims and Origins 1 An Introduction 1 Neural Systems 2 Neurons 5 Dendritic Microprocessing 7 Receptive Fields 11 Plasticity 16 Paralinearity 18 Stateofthe Art 22 v vi CONTENTS Lecture 2. Outlines ofa Holonomic Brain Theory 2S Inception ofthe Fonnalism 25 The Holoscape: Spacetime, Spectraand Quanta ofInfonnation 28 The OCCAM Network and the Boltzmann Engine 32 Energy, Entropy and Infonnation 36 Summary 43 PART 1: CONFIGURAL ASPECTS Lecture 3. Transformational Realism: The Optic Array, the Optical Image and the Retinal Process 47 Introduction: The WhatofPerceptual Processing 47 The Optic Array 49 The Optical Image and Optical Flow 52 Retinal Receptor Processes 54 The How ofPerceptual Processing 57 AComputational Implementation 60 Summary 63 Lecture 4. Imaging: Cooperativity in Primary Sensory Systems 6S Introduction 66 An Experiment 67 The Gabor Elementary Function 70 Achieving the Transfonn 73 Cortical Receptive Fields 74 Classification ofReceptive Field Properties 79 Patterns ofActivity in Populations ofReceptive Fields 83 Activating the Junctional Microprocess 85 Features Extracted from Noise 88 Achieving the Perceptual Image 89 Conclusion and Summary 91 Lecture 5. Object-Forms and Object Spaces: Sensory-Motor Reciprocity 93 Introduction 93 What is Processed in Achieving Constancy 95 Figure and Ground in an Occulocentric Space: Striate-Peristriate- Tectal Circuitry 98 ObjectConstancyinObject-CenteredSpaces;ProcessingSize,Color and Shape in Prestriate-Pretectal Circuitry 100 CONTENTS vii Centers ofSymmetry and Reference Frames 106 Group Theory 108 Holonomic Transfonnations and Group Theory 110 Invariance and Reference Frames 112 Computation in JointOcculocentric and Object-Centered Frames 114 The Processing Mode 115 Invariance as Relative to Frame 118 Conclusion and Summary 120 Lecture 6. Images ofAchievement and Action Spaces: Somatic Processes in the Control ofAction 121 Introduction 121 SomatomotorControls: Spinal, Brain Stem, Basal Ganglia and Cerebellar 126 Targets: The Computation of Somatomotor Constancies 133 The Sensory Aspects ofthe Rolandic MotorCortex 134 Transfonning Movement into Action 136 Frequency Tuning 139 Velocity and Length 141 Position in the MovementCycle 144 A Vector Space: Force Defined in Tenns ofLoad 145 Images ofAchievement 148 Neglect and Apraxia: Disturbances in Body Image 149 Skill vs. Praxis: ARolandicvs. Extra-RolandicDistinction 150 The Corporeal Selfas Reference Frame 154 AJoint Visuosomatic Action Space 155 Summary 160 PARr 11: COGNITIVE ASPECTS Lecture7. Comprehension:ContributionsofthePosteriorCerebral Convexity in Enhancing Processing Span 165 Introduction 165 Some History 167 Sensory Discrimination 168 A Hierarchy ofHeterarchical Processes 172 The Non-Sensory Aspect ofSensory Mode Specificity 174 Sensory Discriminations as Efficient Stimulus Sampling 174 EfficientStimulusSamplingasSignalEnhancement-Bias 177 BiasintheDevelopmentofPrototypesandinCategorizing 178 viii CONTENTS Central Processing vs. Behavior 180 Central Selectives 193 Conclusion 196 Lecture 8. Familiarization and Valuation: The Contributions ofthe Amygdala System to the Demarcation ofan Episode 199 Introduction 199 The Amygdala System 200 The Boundaries ofan Episode 201 A Disturbance ofPerception 207 Equi-valence: The Evaluation ofPerceptions 208 Protocritic Processing: A Hedonic Comfort-Discomfort Dimension 208 Familiarization as Consolidation ofMemory, Dependent on Protocritic Processing 214 Toward a Model for Episodic Processing 217 Lecture 9. Irrelevance and Innovation: The Contributions of the Hippocampus and Limbic Forebrain to the Processing ofContext 221 Introduction 221 The Hippocampal System 222 Cognitive Effort: Efficiency in Processing Novelty 223 Relevance, Distractionand the Limbic Forebrain 226 The Neurophsyiology ofRelevance 230 Toward a Model ofInnovation 233 Lecture 10. Envisioning Proprieties and Priorities; Practical Inference: The Far Frontal Cortex as Executive Processor 239 Introduction: An Executive Processor 239 Anatomical Considerations 240 The What, When, and How ofProcessing 242 Kronos and Kairos: The Decisive Moment 243 Covariation and Episodic Coherence 244 Interference 245 Proprieties: Utilizing Context 247 Priorities: The BestofWell Laid Plans 247 Practicalities: Context-Content Relationships 248 Modification ofProcessing Competence 255 Envisioning Proprieties and Priorities: Toward a Model for Processing Serial Position 259 CONTENTS ix Practical Inference: Toward a Model for Processing Covariances 263 Summary 268 Epilogue 269 APPENDICES Appendix A: Neurodynamics: A Theory ofNonlocal Cortical Processing 277 Introduction 277 Fundamental Oscillations in Dendritic Networks 279 Neurodynamics 281 The Neural Wave Equation 285 Torus as an Idealized Dendritic Element 287 Fourier Decomposition and the Cybernetics of Image Processing 290 Spin and the Configuration ofthe Dendritic Microprocess 292 Appendix B: Symmetry, Invariance and Group Theory in Object Perception 295 Introduction 295 The Least Action Principle and Symmetry 297 Symmetry and Invariance in Neurodynamics 301 Symmetry Groups and Internal Representations 303 Appendix C: The Definition ofContext 307 Introduction 307 The Geometries ofNeurodynamics 307 A System ofEigenvectors 309 Appendix D: Familiarization as Transfer Among Contexts 313 Introduction 313 Generalized FourierCoefficients 313 Transfer 315 Appendix E: The Formation ofPrototypes 317 Introduction 317 X CONTENTS Processing Domains 317 Prototypes 319 Appendix F: Neurodynamics and Innovation 321 Introduction 321 Stabilities FarFrom Equilibrium 321 Weak Interactions as Potential Perturbations 322 Novel Associations 325 Appendix G: The Neurodynamics ofCovariation and Inference 327 Introduction 327 Bias 327 Inference as the Method ofLeast Squares 329 References 331 Glossary 363 Author Index 371 Subject Index

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