Thursday, April 26, 2012

Horizontal Connections

I have still to find a neural model of the competitive selection mechanism that finds the winning node of a SOM. The process has been parallelised many times for parallel SOM implementations based on FPGAs or CUDA (such as Aquila).  There is a lot of work on horizontal/lateral connections in the cortex.  It would be very interesting to study a SOM implementation using such lateral connections to select SOM winners.

Endogenously Active Elements

Endogenous activity has been raised as an important mechanism for cognition, both in terms of neural self-organisation (Choa and Choi 2012) and for control (Bechtel and Abrahamsen 2010 ).  Such a mechanism would be a very interesting extension to our PLANCS framework for behavior-based robotics (Dahl and Giraud-Carrier 2005).
  • Bechtel, W. and Abrahamsen, A. (2010) Understanding the brain as an endogenously active mechanism. In Proceedings of the 32nd Annual Conference of the Cognitive Science Society, Austin, Texas. (see Bechtel's web site
  • Choa, M. W. and Choi, M. Y. (2012) Spontaneous organization of the cortical structure through endogenous neural firing and gap junction transmission, Neural Networks 31:46–52.
  • T. S. Dahl and C. Giraud-Carrier, "Incremental Development of Adaptive Behaviors using Trees of Self-Contained Solutions," Adaptive Behavior, 13(3)243-260, 2005.