IN a polygraphic study it was found that newborn babies responded differentially to pure and to patterned tones of equal sound pressure 1. Patterned (square-wave) tones were more potent stimuli ...

Up until recently, habituation—a simple form of learning—was deemed the exclusive domain of complex organisms with brains and nervous systems, such as worms, insects, birds, and mammals.

Habituation is a non-associative learning process in which an innate response is weakened after an organism is frequently exposed to a particular stimulus. This occurs as the organism becomes ...