Effect of Ribonuclease on Retention of Conditioned Response in Regenerated Planarians

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Science  27 Oct 1961:
Vol. 134, Issue 3487, pp. 1363-1365
DOI: 10.1126/science.134.3487.1363


Conditioned planarians were transected and allowed to regenerate in a ribonuclease solution or in pond water. Heads which had regenerated in ribonuclease displayed a retention level equal to that of head and tail sections which had regenerated in pond water. However, tails regenerated in ribonuclease performed randomly although they could be retrained to criterion.