Since Lorenz' discovery of obedient imprinting in 1935, the interpretation of this behavioral phenomenon has changed several times. Lorenz himself always emphasized the distinctive nature of imprinting processes (the main variants: filial, sexual, food, and habitat) when compared with other kinds of learning. However, today, we speak of sensitive, rather critical periods, and we now know that secondary imprinted attachments can be as stable as primary ones, thereby limiting the impact of assumed reversibility. Nevertheless, in …showed first 75 words of 2130 total…

…showed last 75 words of 2130 total…blanket. ------------------------------------------------------------------------ **Bibliography** References Garcia, J., Kimeldorf, D.J & Koelling, R.A. (1955) A Conditioned Aversion Towards Saccharin Resulting from Exposure to Gamma Radiation. Science 122 157-158 Heschl, A. (1990) A Simple Equation with Astonishing Consequences. Hingston, R.W. (1928). Problems of Instinct and Intelligence. London: Mcacmillan Company. Lorenz, Konrad. (1988). Here I am-Where are You?. London: Harcourt Brace Jovanovich. Inc. Lorenz, Konrad.(1988) On Live and Living. New York: St. Martin's Press. Nisbett, Alec. (1976) Konrad Lorenz. Library of Congress