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Evolution and Brain Computation

Difficulty level
Beginner
Speaker
Type
Duration
1:29:38

This lesson discusses how to approach neural systems from an evolutionary perspective.

Topics covered in this lesson
  • Introduction: overview of the timeline of evolution.
  • Origins of the brain's molecular machinery.
  • Mechanistic implementation of basic building blocks in ancestors.
  • Functional convergence.
  • Biofilm communication in bacteria vs building blocks of the action potential.
  • Cross-species comparison of likely parallel evolution of mechanisms and phenomena: looming, STDP, circuit computation, oscillatory dynamics, transient neural dynamics.
  • The value of diverse model systems.
  • Physical constraints and neural solutions: sound localization, with owls as a model organism.
  • Role of distance and time difference in sound localization.
  • Coincidence detection and delay lines.
  • Precision and processing of signal time differences.
  • Side peak suppression.