[Similarity in the behavior of insects and vertebrates in solving difficult visual tasks]

Field experiments on elaboration of conditioned differentiation reflex in melliferous bees led the authors to the conclusion on convergent similarity of some characteristics of insects' and vertebrates' behaviour while solving difficult visual tasks. The similarity is expressed in phenomena of 1. "unlearning", or transition to choices at random, during repetitive difficult differentiations; 2. return of behavior from the acquired program to the innate one--the authors named this phenomenon "reversion of behaviour control". Both the phenomena protect the CNS from overstrain when the animals encounter a difficult sensory task.