Conditioned Reflexes

of the individual. Consequently they are individual in their distribution and unhke unconditioned reflexes do not belong equally to al1 the members of the species. The conditions in which an animal lives determine their formation. Adaptation to environment depends on the power of the individual to acquire new conditioned reflexes?on his power to learn, unlearn, and learn again according to the variations in the conditions in which he lives. It is not known to what extent these reflexes are