One of the ways in which the cerebral organization of sensory sys tems in general, and the auditory system in particular, can be in vestigated is by studying defects of the perception and discrimina tion of acoustic stimuli resulting from destruction of different parts of the auditory system by a pathological focus in them or by their surgical removal. The disturbances accompanying lesions of the peripheral part of the auditory system (disturbances of sound conduction, dis turbances arising in the ha ir cells of the cochlea) are weIl known. It is much more difficult to determine the character...