Mapping developmental

A made-up example of a developmental mapping may be presented using production (or rewrite) rules. 

Rewrite rules and interpretation (together acting as the developmental mapping) ... 

This simplistic example illustrates almost all core characteristics of developmental mappings (though of only the rewrite rules type) ... 

Representation requires that the designer of a typical evolutionary computation algorithm (EA) formulates one inadaptable blueprint for the solution of some problem, then present the variables of that blueprint in a form that is amenable to manipulation by the genetic operators of the EA. Fitness evaluation, on the other hand, has limited GA in two distinct ways (1) it has limited environmental feedback to the confines of a formula or algorithm, which reflects accurately and exclusively the quality of the complete candidate solution from the perspective of the human designer. In addition, (2) fitness evaluation has proven to be the most computationally costly part of a typical EA. Note that elaborate developmental mappings actually increase that computational cost. However, our interest here lies in the limiting effects of representation. 

If the existence of an ordered fate map poses the problem of positional information, the striking phenomena of transdetermination and homeosis unavoidably raise the question of the relation of developmental programs in diverse imaginal discs. Transdetermination was discovered when imaginal disc fragments were cultured. Although each disc normally differ-... 

Bowen, J., Hinchliffe, J.R., Horder, T.J., Reeve, A.M.F. (1989). The fate map of the chick forelimb-bud and its bearing on hypothesized developmental control mechanisms. Anat. Embryol. 179, 269-283. 

In summary, the developmental data available on map purpose suggest that by preschool, many children understand that maps store location information and aid navigation. Although there is no evidence that children appreciate the idea that maps may serve other purposes, it is unclear whether this reflects something about their understanding, or instead reflects the relative paucity of research addressed to this question. 

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