Monaural Occlusion Shifts Receptive-Field Locations of Auditory Midbrain Units in the Owl

The responses of auditory units with limited spatial receptive fields (L-F units) were studied before and after acute monaural occlusion. The L-F units were recorded in the space-mapped region of the midbrain auditory nucleus (MLD) of the owl (Tyro alba). Excitatory receptive fields and best areas were plotted using a movable sound source under free-field conditions.