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Time and Periodicity

Time and Periodicity. Phase Amplitude Period Frequency Time. Smartness of neurons in big brains . Each neuron is ‘less smart’, contributes less to whole Less communication with rest of brain Overall load can be increased, with division of labor. Top-Down.

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Time and Periodicity

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  1. Time and Periodicity • Phase • Amplitude • Period • Frequency • Time

  2. Smartness of neurons in big brains • Each neuron is ‘less smart’, contributes less to whole • Less communication with rest of brain • Overall load can be increased, with division of labor

  3. Top-Down • [P.21] Common terms for cognitive processes? • Aristotle->Descartes, Locke, Hume-> • (!) as hypothetical, works in progress • William James’ list of mind still comprises modern ontology of cognition/behaviour: • Attention, conception, association, memory, perception, reasoning, instinct, emotions, • [p.22] “concepts can be verified or rejected only by studying mechanisms”

  4. Top-Down • [P.21] Common terms for cognitive processes? • Aristotle->Descartes, Locke, Hume-> • (!) as hypothetical contructs, works in progress • William James’ list of mind still comprises modern ontology of cognition/behaviour: • Attention, conception, association, memory, perception, reasoning, instinct, emotions, • [p.22] “concepts can be verified or rejected only by studying mechanisms”

  5. Top-Down • Turing; artificial intelligence • What our cognitive science has found out about the mind is mostly that we don’t know how it works. (Fodor)

  6. Bottom-up • [p.24]To understand brain function • 1. Dynamic structural organization • 2. Physiology of its parts • 3. Mode of operation (Nature of sum of parts) or • Structure defines function (reverse engineering)

  7. Bottom-up • [p.24] Brain waves are a collective-order parameter • But if brain is non-linear (complex), will parts yield understanding of whole? Emergent properties?

  8. Outside-in • [p.26] Sensory stimuli evoke responses in single neurons…BUT problems include… - - Inside-out • Never mind grand purpose or what is ‘out there’, just see what groups of neurons do, and determine causal agents.

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