The expansion of the conceptual field of psychology is a necessary reflection of the actions of the “fluid actor” in the “fluid modernity”. The possibility of its expansion is presented in connection with the understanding of the role of the psychologist from the position of “post-non-classical rationality”, which is guided by an abstract-analytical and (or) effectively transformative strategy. When choosing an abstract — analytical strategy, abstractly selected sides of the object are studied, where the parts define the whole, and cognition from the standpoint of “classical rationality” proceeds within the framework of the basic paradigm and its concepts. In this case, new concepts may arise if the study of the phenomenon is carried out transdisciplinary, when the position of V.M. Bekhterev on the extension of the laws that operate in the Universe, in particular the law of rhythm, is accepted. Its manifestation is noted as “rocking”, which can be correlated with the concept of “oscillation” common in physics and technology. The introduction of the concept of “fluctuations” and its manifestations into psychology is promising for describing the mechanisms of intellectual development, fluctuations of motivation, emotions, behavior. The choice of an effective transformative strategy is determined by the need to solve life problems when interacting with an object (another person) as an integral entity, type, individuality. The systemic and hierarchical structure of the conceptual composition is then supplemented by concepts that are formed in a hierarchically built community of like-minded people (at the horizontal level) and are “new cognitive tools”. The transdisciplinary approach makes it possible to use the concept of “consolidation”, which is used in studies of brain activity when the solution of an urgent problem is carried out by instantaneous restructuring of all brain systems in the direction of their “consolidation”. The concept of “mutual cooperation” is promising for the characteristics of a high level of joint actions of a collective actor. A significant expansion of the conceptual field occurs in the consultative and training options for using an effective transformative strategy, when coordination of actions to solve a problem and the transformation of participants into a collective actor is achieved by creating a new language of verbal and nonverbal concepts.