1
Christof Koch is at the Computation and Neural Systems Program, California Institute of Technology, Pasadena, California 91125, USA. koch@klab.caltech.edu
2
Tomaso Poggio is at CBCL in the Brain Sciences Department and in the AI Lab at MIT, Cambridge, Massachusetts 02142, USA. tp@ai.mit.edu
In predictive coding, only unexpected input features are signaled to
the next stage of processing. Rao and Ballard use this approach to model extra−classical
receptive field effects.
