Review (the bricks):
neurons, action potentials, resting/receptor/generator potentials, synaptic potentials, inhibition, signals end and start in middle of box, thinking backwards about behavior
Yes, signals can start in the middle of the box, at all scales
Isolated Nervous System
|Isolated leech nervous system: activity in motor nerve (Brodfuehrer and Grobstein, see Variability in Brain Function and Behavior
||Isolated Aplysia neuron (Alving, B.O., J. Gen. Physiol. 51: 29-45, 1968; figure from Kandel, E.R., Cellular Basis of Behavior, W.H. Freeman, 1976, p 255)|
And inhibition important ("thinking backwards" about behavior)
Moving on ...
- motor symphony
- central pattern generation
- corollary discharge
- coordination without a conductor
- backwards (right to left arrows) and expectation/models
- Purpose, expectation, creativity, exploration ... all without the I-function
Learning from simplifying:
Extending the idea of internal signalling:
Adding back to get more:
Do you think these aspects of the nervous system are interesting/useful for educators to know about? Put your thoughts in the institute forum area.
- Distributed control (rather than top-down hierarchy)
- Output as exploration (rather than response)
- Output associated with "expectation" or "model"
- Input as test of expectation/model (rather than "stimulus" or stamper)
- Exploring/learning can occur without I-function (sometimes, for some things, even better?)
- Education as exploration? as science?
- Purposes (multiple) without I-function
- Motor cortex
- "Voluntary" movement
- Inhibitor of movements one would otherwise make
- Creator of movements one would not otherwise make
- Part of "I-function"?
- Unconscious provides foundation for "I-function"
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Tuesday, 19-Jul-2005 07:22:13 EDT