Behavioral and Brain Sciences

Short Communication

Replication in selective systems: Multiplicity of carriers, variation of information, iteration of encounters

George N. Reeke a1
a1 Laboratory of Biological Modelling, The Rockefeller University, New York, NY 10021


An analysis of biological selection aimed at deriving a mechanism-independent definition removes Hull et al.'s obligatory requirement for replication of the carriers of information, under conditions, such as those obtaining in the nervous system, where the information content of a carrier can be modified without duplication by an amount controlled by the outcome of interactions with the environment.