Imprinting behavior: pituitary-adrenocortical modulation of the approach response

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Science  05 May 1978:
Vol. 200, Issue 4341, pp. 565-567
DOI: 10.1126/science.205951


Plasma corticosterone concentrations in newly hatched ducklings exposed to an imprinting model are inversely related to the strength of approach behavior. Injections of corticosterone before imprinting reduces following, whereas alpha1-10-adrenocorticotropin or antiserum to corticosterone augments following behavior. The sensitive period for imprinting may be regulated by changes in the pituitary-adrenocortical axis.

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