User:Jtwsaddress42/Quotes/Edelman, Gerald M. 1987(a)e

The Central Features Of TNGS "'A central feature of the theory of neuronal group selection is that the mechanisms leading to the formation of both the primary and secondary repertoire are epigenetic: while bounded by genetic constraints, events occurring at both developmental and experiential stages of selection lead to increases with time in both the heterogeniety and spatial diversity of cells and cellular structures.  Such events depend upon the prior occurrence of other events in time courses that are long compared with those of intracellular events, and the cells involved exhibit interactive and cooperative spatial orderings that could not have been stored directly in the genetic code.'

Gerald M. Edelman (1987)"