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Chemical Transfer of a Dummy Reaction, Released in Young Mouthbreeding Fish (Tilapia Nilotica) During the “Critical Period”, from Imprinted Donors into Unimprinted Recipients After the “Critical Period”

  • Hans Peter Zippel
  • Cornelis Langescheid

Abstract

The “linking behavior” to the dummy, shown by young fish during the “critical period”, appears to be transferable to unimprinted animals after the “critical period” by injection of brain extracts from imprinted donors. On the other hand, control recipients injected with extracts from unimprinted donors show no such orientation to the model. Following injection the behavior of the recipients was comparable with that of imprinted animals at an equivalent age. However, the high level of “linking behavior” manifested by the donor animals at the time of decapitation could not be transferred.

Keywords

Critical Period Testing Chamber Brain Extract Evans Blue Young Fish 
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Copyright information

© Plenum Press, New York 1973

Authors and Affiliations

  • Hans Peter Zippel
    • 1
  • Cornelis Langescheid
    • 1
  1. 1.Physiologisches Institut Lehrstuhl II der Universität34 GöttingenGermany

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