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The novelty response of pulse-type weakly electric fish :
(1985)
A series of experiments was performed to investigate various behavioral and neurophysiological aspects of the Novelty Response (NR) of pulse-type weakly electric fish. The NR is a reflexive behavior in which the fish ...
Factors influencing the variance in sign learning performance by four juvenile orangutans (Pongo pygmaeus) /
(The University of Oklahoma., 1985)
Following the methods of Gardner and Gardner 1969 and Fouts 1973 , ten signs (American Sign Language) were trained to four juvenile orangutans. None of the subjects acquired all of the signs even after 2400 trials ...