The cortex and the critical point : understanding the power of emergence / John M. Beggs.

Author
Beggs, John M. [Browse]
Format
Book
Language
English
Εdition
1st ed.
Published/​Created
Cambridge, Massachusetts : The MIT Press, [2022]
Description
1 online resource (217 pages)

Details

Subject(s)
Series
The MIT Press
Summary note
"A survey of the criticality hypothesis which imports theory from physics to understand the brain and could be a grand unifying theory of the brain at a time when neuroscience is dominated by data"-- Provided by publisher.
Source of description
OCLC-licensed vendor bibliographic record.
Language note
English
Contents
  • Intro
  • Contents
  • Acknowledgments
  • Introduction
  • The Critical Point in Context
  • The Goals and Structure of This Book
  • I. Background
  • 1. The Main Idea
  • A Simple Model
  • Optimal Information Processing
  • The Appearance of Emergent Phenomena
  • Power Laws
  • Avalanches
  • A Phase Transition
  • From a Model to Data
  • The Criticality Hypothesis
  • Objections and Responses to the Criticality Hypothesis
  • Chapter Summary
  • 2. Emergent Phenomena
  • Methodological Reductionism
  • The Wave as an Emergent Phenomenon
  • Emergent Phenomena in the Brain
  • A Simple Model of Emergent Phenomena in the Brain
  • Complex Emergent Phenomena Occur at a Phase Transition
  • More Complex Emergent Phenomena?
  • How to Study Emergent Phenomena
  • II. The Critical Point and Its Consequences
  • 3. The Critical Point
  • The Branching Model: A Branching Ratio Near 1
  • The Branching Model: A Phase Transition with Control and Order Parameters
  • The Branching Model: An Exponent Relation between Multiple Power Laws
  • The Branching Model: Fractal Copies of Avalanches
  • Signatures of Being near the Critical Point
  • Signatures of the Critical Point from the Data
  • In Vitro Experiments
  • Data: A Branching Ratio near 1
  • Data: A Phase Transition with Control and Order Parameters
  • Data: An Exponent Relation between Multiple Power Laws
  • Data: Fractal Copies of Avalanches
  • Objections to These Signatures of Criticality
  • 4. Optimality
  • The Branching Model: Information Transmission
  • The Branching Model: Dynamic Range
  • The Branching Model: Susceptibility
  • Data: Dynamic Range
  • Data: Information Transmission
  • Data: Susceptibility
  • Other Predictions Yet to Be Tested
  • 5. Universality
  • Universality in Physical Systems
  • Universality in the Cortex: Indicators.
  • Indicators Seen across Species
  • Indicators Seen across Scales
  • Described by a Simple Model
  • III. Future Directions
  • 6. Homeostasis and Health
  • Homeostasis toward the Critical Point after a Major Perturbation
  • Sleep and Homeostasis toward the Critical Point
  • Sensory Adaptation toward the Critical Point
  • Development toward the Critical Point
  • Themes from Homeostasis Results
  • Health
  • 7. Quasicriticality
  • Universality: Unfinished Issues
  • A Possible Solution: Quasicriticality
  • Another View: Slightly Subcritical
  • Another View: Subsampling
  • Another View: Griffiths Phase
  • 8. Cortex
  • The Expansion of Cortical Area
  • Associations of Associations
  • The Special Role of Layers 2 and 3
  • Multifunctionality and the Critical Point
  • Nearly Critical in Layers 2 and 3, but Not in Layer 5
  • Staying Nearly Critical While Learning
  • Timescales throughout the Hierarchy
  • 9. Epilogue
  • What We Know
  • What We Don't Know
  • Frontier Issues
  • What I Did Not Cover
  • Appendix
  • Relation between Power-Law Exponent and Slope (Chapters 1 and 6)
  • When the Average Value of a Power Law Diverges and When It Does Not (Chapters 1 and 6)
  • Long-Range Temporal Correlations (Chapters 1, 6, and 8)
  • Informal Derivation of the Exponent Relation (Chapters 3, 5, 6, 7, and 8)
  • Avalanche Shape Collapse (Chapters 3, 5, 6, and 8)
  • How to Quantify Network Dynamics (Chapters 4 and 8)
  • Software and Data for Exercises and Analyses
  • Notes
  • Chapter 1
  • Chapter 2
  • Chapter 3
  • Chapter 4
  • Chapter 5
  • Chapter 6
  • Chapter 7
  • Chapter 8
  • References
  • Index.
ISBN
0-262-37034-4
OCLC
1333708308
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