Abstract
The author describes an experimental investigation of the effects of binaural hearing on pitch discrimination.
The difference limen for frequency ($ f), in measurements made at 1000 cps, was determined at a sound level of 30 dB above threshold. The listeners were five young men, all with normal hearing in both ears, and the difference limen was determined many times, monoaurally and binaurally in succession.
It appears from the results of the experiments that there is no difference between the differential threshold for frequency obtained monoaurally and that one obtained binaurally.
However, it was found that the pitch discrimination performances deteriorate slightly as the duration of the test increases, but only in monoaural hearing. The author thinks that the phenomenon observed may be considered as an effect of binaural integration.