Experimental attempts to observe the elementary excitations of an orbitally ordered state (orbitons) in strongly correlated electronic systems by means of Raman scattering and by inelastic x-ray scattering are discussed for the Mott insulator LaMnO3. The results of investigations of the differential conductivity of heterostructures, consisting of a silver needle and manganite-doped La0.57Ca0.43MnO3, for voltages above the phonon and magnon frequencies of manganites are presented. Three peaks at energies corresponding to the peaks in the Raman scattering spectra of LaMnO3 are observed. It is assumed that these peaks are due to the interaction of tunneling electrons with excitations in the orbital subsystem of a degraded region adjoining the metal–manganite interface.