Аннотация:A method of injecting barium hexaferrite-based ferromagnetic implants into the brain of animals is proposed. Behavioral responses of mice to external magnetic influence after the introduction of non-toxic nanomagnetic particles of barium hexaferrite were studied. A decrease in the BOLD-signal value at nitric oxide "outflow" within the framework of the proposed kinetic model was shown.ORCID: https://orcid.org/0000-0001-5599-0580