Bitking
November 13, 2018, 2:07am
9
Casey:
I’m starting to think that one type of L6 CT cell corresponds to a thalamic pathway which serves the initiation of the where pathway in primary cortex, tightly tied to motor copy signals, proprioception, or similar. This part of the thalamus might be modulated by the sensory input the same way that L6 CT cells modulate all thalamic cells.
For the primary cortex, maybe the dumb boss is subcortical where/how-related structures and the smart adviser is the sensory input and cortical feedback. A point on a map of saccade targets is a lot simpler/dumber than a representation of lines and whatever else, but needs advising on which points on that map are good targets for saccades.
I could try to work through the top-down (reverse?) stream in the sub-cortical structures but Randall O’Reilly does a great job of it with this paper - I don’t seen any need to duplicate the effort:
A very recent competing / complementary model of deep predictive coding in the brain.
O’Reilly, Randall C., Dean R. Wyatte, and John Rohrlich. "Deep Predictive Learning: A Comprehensive Model of Three Visual Streams."
Abstract:
How does the neocortex learn and develop the foundations of all our high-level cognitive abilities? We present a comprehensive framework spanning biological, computational, and cognitive levels, with a clear theoretical continuity between levels, providing a coherent…
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