The formation in the northern fur seal (Callorhinus ursinus L.) of flexible behavioral programs determined by the structure of the complex visual stimulus

In Callorhinus ursinus L. generalized rule was elaborated of perception of two-stimuli complex visual stimulus (CVS) presented in random and formed from a set of three differentiated stimuli. The animal was trained to perceive the visual information in linear sequence according to the rule of "reading" from top to bottom and make in conformity with this rule labile two-link visual-motor chains of actions signalled by CVS stimuli. Such behavioural strategies were called by authors ability to operate with CVS structure.