Abstract
WE have found that testosterone markedly increases the persistence with which male chicks respond to a particular type of stimulus. The data reported here are from search tests, but the effect has now been confirmed in discrimination and open-field tests. Apparently similar effects of androgens on cognitive processes in men have recently been described1,2, so that it is possible that we are dealing with an effect which is present in both birds and mammals.
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References
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Statistical procedures as in Siegel, S., Non-parametric Statistics (McGraw-Hill, New York, 1956).
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ANDREW, R., ROGERS, L. Testosterone, Search Behaviour and Persistence. Nature 237, 343–346 (1972). https://doi.org/10.1038/237343a0
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DOI: https://doi.org/10.1038/237343a0
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