Abstract
In order to verify that a subject's brain is able to identify selected sounds, even if the subject can not identify the selected sounds significantly by the normal auditory sense, a series of trials were performed on the subject who tried to identify the sound selected previously at random by computer while listening to four sounds generated dur-ing trials. This paper will demonstrate that the subject's significant shift of latency was detected on his auditory brain evoked potential peak while he listened to the selected unknown targets, and will suggest the possibility of unknown information transfer in the subconsciusness.