[Effect of destruction of the auditory centers of the brain on the range of echolocation by bats Rhinolophus ferrum-equinum (the large horseshoe-nose bat)].

Results of the authors' studies and data from literature underlie the development of a notion on structural rearrangement of the brain synaptic membranes in aging. Reorganization results in conformational changes of the key membrane-bound enzymes and receptors underlying the age alterations of neuronal functions.