162 SUMMATION BY CHAIRMAN 



birth presents still other cytoarchitectural anomalies, including irregular ectopias 

 of both granule and Purkinje cells. 



In summary, a certain amount of radiation delivered at given stages of early 

 development results in unique patterns of response. The resultant morphologic 

 patterns are distinctive for each stage, and it follows that the corresponding be- 

 havior patterns must also be distinctive. 



References 



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Hicks, S. P., and D'Amato, C. J. 1960b. Malformation and regeneration of the mam- 

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Hicks, S. P., D'Amato, C. J., Coy, M. A., O'Brien, E. D., Thurston, J. M., and Joftes, 

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Sauer, F. C, 1935. Cellular structure of the neural tube. /. Comp. Neurol. 63, 12-23. 



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